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Photodegradation of tetracycline and coupling photocatalytic H2O2 production driven by concave resins with different concavities under visible light irradiation
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-23 DOI: 10.1016/j.jtice.2025.106101
Xinyang He, Ying Tian, Weiwei Lu, Fangfen Jing, Mingzhu Jin, Jiahui Zhu, Qi Fong, Rongtai Yu

Background

The widespread presence of antibiotics in aquatic environments poses severe ecological risks due to inadequate removal in conventional wastewater treatment. This study investigates morphology-controlled concave polymer nanospheres for simultaneous tetracycline (TC) degradation and photocatalytic H2O2 production.

Methods

Synthesis of aminophenol-formaldehyde resins (APF) using 3-aminophenol (3-AP), ammonia water, and formaldehyde. Through precise acetone-mediated etching, three concave resin catalysts with distinct concavities (70–78 nm) and wall thicknesses (47–54 nm) were synthesized.

Significant findings

Systematic characterization revealed that increased wall thickness enhanced visible-light absorption (up to 700 nm), while higher concavity improved light reflection efficiency. The catalyst synthesized with 38 mL acetone demonstrated optimal H2O2 yield (168.5 mg g⁻¹), whereas the maximum TC degradation efficiency (106.57 % at 180 min) was achieved using the 32 mL acetone-etched catalyst with the deepest concavity. Mechanistic studies identified synergistic effects between light scattering geometry and charge carrier dynamics, where concave structures facilitated multi-directional photon utilization while thickened walls suppressed electron-hole recombination. This work provides new insights into morphology engineering for dual-functional photocatalytic systems in environmental remediation.
{"title":"Photodegradation of tetracycline and coupling photocatalytic H2O2 production driven by concave resins with different concavities under visible light irradiation","authors":"Xinyang He,&nbsp;Ying Tian,&nbsp;Weiwei Lu,&nbsp;Fangfen Jing,&nbsp;Mingzhu Jin,&nbsp;Jiahui Zhu,&nbsp;Qi Fong,&nbsp;Rongtai Yu","doi":"10.1016/j.jtice.2025.106101","DOIUrl":"10.1016/j.jtice.2025.106101","url":null,"abstract":"<div><h3>Background</h3><div>The widespread presence of antibiotics in aquatic environments poses severe ecological risks due to inadequate removal in conventional wastewater treatment. This study investigates morphology-controlled concave polymer nanospheres for simultaneous tetracycline (TC) degradation and photocatalytic H<sub>2</sub>O<sub>2</sub> production.</div></div><div><h3>Methods</h3><div>Synthesis of aminophenol-formaldehyde resins (APF) using 3-aminophenol (3-AP), ammonia water, and formaldehyde. Through precise acetone-mediated etching, three concave resin catalysts with distinct concavities (70–78 nm) and wall thicknesses (47–54 nm) were synthesized.</div></div><div><h3>Significant findings</h3><div>Systematic characterization revealed that increased wall thickness enhanced visible-light absorption (up to 700 nm), while higher concavity improved light reflection efficiency. The catalyst synthesized with 38 mL acetone demonstrated optimal H<sub>2</sub>O<sub>2</sub> yield (168.5 mg g⁻¹), whereas the maximum TC degradation efficiency (106.57 % at 180 min) was achieved using the 32 mL acetone-etched catalyst with the deepest concavity. Mechanistic studies identified synergistic effects between light scattering geometry and charge carrier dynamics, where concave structures facilitated multi-directional photon utilization while thickened walls suppressed electron-hole recombination. This work provides new insights into morphology engineering for dual-functional photocatalytic systems in environmental remediation.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106101"},"PeriodicalIF":5.5,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
COSMO-RS prediction, liquid-liquid equilibrium experiment and quantum chemistry calculation for the separation of methanol and dimethyl carbonate system using dihydrogen phosphate ionic liquids
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-23 DOI: 10.1016/j.jtice.2025.106102
Jiaxin Liu, Qinqin Zhang, Chao Wang, Yu Sheng, Jiahui Liu, Yulin Li, Hua Xin, Zhigang Zhang

Background

Dimethyl carbonate (DMC) is a high value-added chemical, and is also an important chemical raw material and solvent in industry, with a wide range of applications. During the synthesis of dimethyl carbonate, the azeotropic mixtures of DMC and methanol (MeOH), which cannot be separated through conventional distillation, will form inevitably.

Methods

In this paper, the feasibility of liquid-liquid extraction separation of DMC and MeOH using ionic liquids (ILs) was explored. 1-ethyl-3-methylimidazolium dihydrogen phosphate ([C2MIM][H2PO4]), 1‑butyl‑3-methylimidazolium dihydrogen phosphate (C4MIM] [H2PO4]), and 1-pentyl-3-methylimidazolium dihydrogen phosphate ( [C5MIM] [H2PO4]) were selected as extractants based on the selectivity calculated by COSMO-RS model as well as the physio-chemical properties of ILs. Liquid-liquid equilibrium (LLE) data for the DMC (1)- MeOH (2)- IL (3) ternary systems were measured at 303.15 K and atmospheric pressure. Selectivity and partition coefficients were calculated based on the experimental LLE results to assess the separation performance of ILs. Othmer-Tobias, Bachman and Hand equations were used to check the quality of the experimental data. NRTL was utilized to correlate the experimental data to obtain the binary interaction parameters. The separation mechanism of the three ILs was explored by interaction energy, IGMH analysis, AIM topological analysis, and FT-IR. Finally, the feasibility of the proposed method in industrial scale was explored using Aspen plus software.

Significant findings

The experimental results demonstrated that all the three ILs could be used as potential extractants for liquid-liquid extraction separation of DMC and MeOH. Quantum chemistry calculation and FT-IR results showed it was hydrogen bond that played a key role in the separation of DMC and MeOH mixture using ionic liquids with [H2PO4] anions. Liquid-liquid extraction separation of DMC and MeOH in industrial scale is feasible.
{"title":"COSMO-RS prediction, liquid-liquid equilibrium experiment and quantum chemistry calculation for the separation of methanol and dimethyl carbonate system using dihydrogen phosphate ionic liquids","authors":"Jiaxin Liu,&nbsp;Qinqin Zhang,&nbsp;Chao Wang,&nbsp;Yu Sheng,&nbsp;Jiahui Liu,&nbsp;Yulin Li,&nbsp;Hua Xin,&nbsp;Zhigang Zhang","doi":"10.1016/j.jtice.2025.106102","DOIUrl":"10.1016/j.jtice.2025.106102","url":null,"abstract":"<div><h3>Background</h3><div>Dimethyl carbonate (DMC) is a high value-added chemical, and is also an important chemical raw material and solvent in industry, with a wide range of applications. During the synthesis of dimethyl carbonate, the azeotropic mixtures of DMC and methanol (MeOH), which cannot be separated through conventional distillation, will form inevitably.</div></div><div><h3>Methods</h3><div>In this paper, the feasibility of liquid-liquid extraction separation of DMC and MeOH using ionic liquids (ILs) was explored. 1-ethyl-3-methylimidazolium dihydrogen phosphate ([C<sub>2</sub>MIM][H<sub>2</sub>PO<sub>4</sub>]), 1‑butyl‑3-methylimidazolium dihydrogen phosphate (C<sub>4</sub>MIM] [H<sub>2</sub>PO<sub>4</sub>]), and 1-pentyl-3-methylimidazolium dihydrogen phosphate ( [C<sub>5</sub>MIM] [H<sub>2</sub>PO<sub>4</sub>]) were selected as extractants based on the selectivity calculated by COSMO-RS model as well as the physio-chemical properties of ILs. Liquid-liquid equilibrium (LLE) data for the DMC (1)- MeOH (2)- IL (3) ternary systems were measured at 303.15 K and atmospheric pressure. Selectivity and partition coefficients were calculated based on the experimental LLE results to assess the separation performance of ILs. Othmer-Tobias, Bachman and Hand equations were used to check the quality of the experimental data. NRTL was utilized to correlate the experimental data to obtain the binary interaction parameters. The separation mechanism of the three ILs was explored by interaction energy, IGMH analysis, AIM topological analysis, and FT-IR. Finally, the feasibility of the proposed method in industrial scale was explored using Aspen plus software.</div></div><div><h3>Significant findings</h3><div>The experimental results demonstrated that all the three ILs could be used as potential extractants for liquid-liquid extraction separation of DMC and MeOH. Quantum chemistry calculation and FT-IR results showed it was hydrogen bond that played a key role in the separation of DMC and MeOH mixture using ionic liquids with [H<sub>2</sub>PO<sub>4</sub>] anions. Liquid-liquid extraction separation of DMC and MeOH in industrial scale is feasible.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106102"},"PeriodicalIF":5.5,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing the analytical modeling of proton-exchange membrane fuel cells for optimal parameter extraction with the Ali Baba and the forty thieves algorithm
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-22 DOI: 10.1016/j.jtice.2025.106093
Lazhar Linoubli , Salah Hajji , Ramzi Ben Messaoud

Background:

This research presents an improvement in the analytical modeling of the equivalent electrical circuit of Proton-Exchange Membrane Fuel Cells (PEMFC). This enhancement is based on a more generalized theoretical framework than existing approaches, providing a more accurate representation of the fuel cell’s electrical behavior.

Methods:

A new expression for the activation voltage has been developed from an improved solution to the Butler–Volmer equation, providing a more accurate representation of electrochemical kinetics without resorting to the Tafel approximation. Additionally, a generalized formulation of the reversible voltage, accounting for the presence of water vapor, along with adjustments to the concentration voltage, has been integrated to optimize the model’s accuracy. The Ali Baba and The Forty Thieves (AFT) metaheuristic algorithm is employed for parameter extraction, ensuring efficient and robust model optimization.

Significant Results:

The proposed model demonstrates significantly higher accuracy, with Total Sum of Squares (SSE) values of 3.9083e08,5.9158e08, and 8.0147e10 for the commercial fuel cells NedStack, BCS 500, and Ballard, respectively. These values are considerably lower than the best results reported in the literature (2.2881×102,1.1364e2,0.1486), demonstrating the enhanced reliability and precision of the proposed model.
{"title":"Enhancing the analytical modeling of proton-exchange membrane fuel cells for optimal parameter extraction with the Ali Baba and the forty thieves algorithm","authors":"Lazhar Linoubli ,&nbsp;Salah Hajji ,&nbsp;Ramzi Ben Messaoud","doi":"10.1016/j.jtice.2025.106093","DOIUrl":"10.1016/j.jtice.2025.106093","url":null,"abstract":"<div><h3>Background:</h3><div>This research presents an improvement in the analytical modeling of the equivalent electrical circuit of Proton-Exchange Membrane Fuel Cells (PEMFC). This enhancement is based on a more generalized theoretical framework than existing approaches, providing a more accurate representation of the fuel cell’s electrical behavior.</div></div><div><h3>Methods:</h3><div>A new expression for the activation voltage has been developed from an improved solution to the Butler–Volmer equation, providing a more accurate representation of electrochemical kinetics without resorting to the Tafel approximation. Additionally, a generalized formulation of the reversible voltage, accounting for the presence of water vapor, along with adjustments to the concentration voltage, has been integrated to optimize the model’s accuracy. The <em>Ali Baba and The Forty Thieves</em> (AFT) metaheuristic algorithm is employed for parameter extraction, ensuring efficient and robust model optimization.</div></div><div><h3><strong>Significant Results:</strong></h3><div>The proposed model demonstrates significantly higher accuracy, with Total Sum of Squares (SSE) values of <span><math><mrow><mn>3</mn><mo>.</mo><mn>9083</mn><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo><mn>08</mn></mrow></msup><mo>,</mo><mn>5</mn><mo>.</mo><mn>9158</mn><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo><mn>08</mn></mrow></msup></mrow></math></span>, and <span><math><mrow><mn>8</mn><mo>.</mo><mn>0147</mn><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo><mn>10</mn></mrow></msup></mrow></math></span> for the commercial fuel cells NedStack, BCS 500, and Ballard, respectively. These values are considerably lower than the best results reported in the literature (<span><math><mrow><mn>2</mn><mo>.</mo><mn>2881</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup><mo>,</mo><mn>1</mn><mo>.</mo><mn>1364</mn><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup><mo>,</mo><mn>0</mn><mo>.</mo><mn>1486</mn></mrow></math></span>), demonstrating the enhanced reliability and precision of the proposed model.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106093"},"PeriodicalIF":5.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Promotion effect of element doping on the moisture resistance property of iron-based spinel catalysts for CO-SCR reaction
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-20 DOI: 10.1016/j.jtice.2025.106097
Xiaotong Li , Jie Zhou , Mingzhe Dong , Wenpeng Tong , Lei Zhong , Songjian Zhao

Background

Research on the carbon monoxide selective catalytic reduction of nitric oxides (CO-SCR) primarily emphasizes the conversion of NOx and the resistance to moisture at low temperatures.

Methods

A series of MFe2O4 catalysts, where M represented Cu, Co, Ni, and Mn, were synthesized through a solvothermal method and subsequently utilized in research focused on CO-SCR.

Significant findings

NiFe2O4 exhibited excellent NO conversion in the range of 150∼250 °C, reaching 100 % conversion at 225 °C. Also, it possessed well CO conversion rate, water resistance, and stability. It was found that the main active site of CO-SCR over NiFe2O4 catalyst was the redox balance of synergistic effect between Ni and Fe, which accelerated electron transfer. The improvement of the denitration performance of the nickel doping could be attributed to more active surface oxygen, more active component ratio (Fe2+), and larger specific surface area. This study provided an idea for exploring efficient and stable CO-SCR catalysts.
{"title":"Promotion effect of element doping on the moisture resistance property of iron-based spinel catalysts for CO-SCR reaction","authors":"Xiaotong Li ,&nbsp;Jie Zhou ,&nbsp;Mingzhe Dong ,&nbsp;Wenpeng Tong ,&nbsp;Lei Zhong ,&nbsp;Songjian Zhao","doi":"10.1016/j.jtice.2025.106097","DOIUrl":"10.1016/j.jtice.2025.106097","url":null,"abstract":"<div><h3>Background</h3><div>Research on the carbon monoxide selective catalytic reduction of nitric oxides (CO-SCR) primarily emphasizes the conversion of NO<sub>x</sub> and the resistance to moisture at low temperatures.</div></div><div><h3>Methods</h3><div>A series of MFe<sub>2</sub>O<sub>4</sub> catalysts, where M represented Cu, Co, Ni, and Mn, were synthesized through a solvothermal method and subsequently utilized in research focused on CO-SCR.</div></div><div><h3>Significant findings</h3><div>NiFe<sub>2</sub>O<sub>4</sub> exhibited excellent NO conversion in the range of 150∼250 °C, reaching 100 % conversion at 225 °C. Also, it possessed well CO conversion rate, water resistance, and stability. It was found that the main active site of CO-SCR over NiFe<sub>2</sub>O<sub>4</sub> catalyst was the redox balance of synergistic effect between Ni and Fe, which accelerated electron transfer. The improvement of the denitration performance of the nickel doping could be attributed to more active surface oxygen, more active component ratio (Fe<sup>2+</sup>), and larger specific surface area. This study provided an idea for exploring efficient and stable CO-SCR catalysts.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106097"},"PeriodicalIF":5.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hierarchical synthesis of multi-layer graphene-like and nitrogen-doped graphitized carbon from dead leaf biomass for high-performance energy storage and CO₂ capture
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-20 DOI: 10.1016/j.jtice.2025.106100
Raman Arunpandian , Mohanraj Kumar , Sahaya Infant Lasalle B , Paranthaman Vijayakumar , Jih-Hsing Chang

Background

This research presents an integrated approach to convert dead leaf biomass into graphene-like materials through a combination of carbonization, activation, graphitization, and graphenization. Unlike conventional techniques that involve separate and a few sequential steps of carbonization, activation, graphitization, and graphenization to treat biomass, we executed the above four processes hierarchically.

Methods

DG (multi-layer graphene-like) and NG (nitrogen-doped graphitized carbon) were synthesized via hydrothermal and solvothermal impregnation followed by pyrolysis. Characterization was performed using Raman spectroscopy, BET analysis, XRD, XPS, HR-TEM, and FESEM. CO₂ adsorption was measured using TGA, and Energy storage performance was evaluated through cyclic voltammetry, galvanostatic charge-discharge measurements, electrochemical impedance spectroscopy, and long-term stability tests, all conducted using a three-electrode configuration.

Significant Findings

DG had a surface area of 1400 m²/g, CO₂ adsorption of 50 mg/g, and a specific capacitance of 184 F/g at 1 A/g. NG showed a surface area of 947 m²/g, CO₂ adsorption of 70 mg/g, and a specific capacitance of 206 F/g at 1 A/g. These results highlight the potential of biomass-derived graphene-like materials for sustainable CO₂ capture and energy storage.
{"title":"Hierarchical synthesis of multi-layer graphene-like and nitrogen-doped graphitized carbon from dead leaf biomass for high-performance energy storage and CO₂ capture","authors":"Raman Arunpandian ,&nbsp;Mohanraj Kumar ,&nbsp;Sahaya Infant Lasalle B ,&nbsp;Paranthaman Vijayakumar ,&nbsp;Jih-Hsing Chang","doi":"10.1016/j.jtice.2025.106100","DOIUrl":"10.1016/j.jtice.2025.106100","url":null,"abstract":"<div><h3>Background</h3><div>This research presents an integrated approach to convert dead leaf biomass into graphene-like materials through a combination of carbonization, activation, graphitization, and graphenization. Unlike conventional techniques that involve separate and a few sequential steps of carbonization, activation, graphitization, and graphenization to treat biomass, we executed the above four processes hierarchically.</div></div><div><h3>Methods</h3><div>DG (multi-layer graphene-like) and NG (nitrogen-doped graphitized carbon) were synthesized via hydrothermal and solvothermal impregnation followed by pyrolysis. Characterization was performed using Raman spectroscopy, BET analysis, XRD, XPS, HR-TEM, and FESEM. CO₂ adsorption was measured using TGA, and Energy storage performance was evaluated through cyclic voltammetry, galvanostatic charge-discharge measurements, electrochemical impedance spectroscopy, and long-term stability tests, all conducted using a three-electrode configuration<strong>.</strong></div></div><div><h3>Significant Findings</h3><div>DG had a surface area of 1400 m²/g, CO₂ adsorption of 50 mg/g, and a specific capacitance of 184 F/g at 1 A/g. NG showed a surface area of 947 m²/g, CO₂ adsorption of 70 mg/g, and a specific capacitance of 206 F/g at 1 A/g. These results highlight the potential of biomass-derived graphene-like materials for sustainable CO₂ capture and energy storage.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106100"},"PeriodicalIF":5.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Black-odor water body remediations by ecological floating island coupled with Ecobase and Acinetobacter haemolyticus: Lab and pilot tests
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-19 DOI: 10.1016/j.jtice.2025.106081
Xiaoyuan Zhang , Qing Qin , Xuetong Zhai , Hongliang Guo , Song Han , Jo-Shu Chang , Duu-Jong Lee

Background

Energy-efficient remediation technology for black and odorous water bodies in cold and salty areas is in high demand. This study experimentally investigated the performance of a novel integrated process at lab and pilot scales, in both batch and continuous-flow modes, to treat black and odorous lake water from Daqing City, China.

Methods

In 25-liter batch tests, relevant influence conditions were optimized. The 756-liter batch tests confirmed these results. Meanwhile, a continuous flow experiment was added to improve the removal rate of pollutants further.

Significant findings

In 25-liter batch tests maximum removal rates for COD, NH4+-N, TP, and TN were 78.6 %, 72.3 %, 79.1 %, and 76.3 %, respectively, using reed plants and carbon fiber grass with L2 bacteria under optimal conditions (two cfb per floating-island unit, pH 8, DO of 4 mg/L, 25–30 °C, microbial enhancer of 0.75 g/flu). The 756-liter batch tests confirmed these results, achieving improved removal rates of 80.4 %, 75.1 %, 75.5 %, and 78.4 % over 30 days. Continuous-flow tests yielded maximum removal rates of 85.2 %, 89.5 %, 87.4 %, and 90.1 % at an 8-hour HRT, demonstrating superior performance under short retention times. The study revealed interactions with the key biological processes during remediation. The proposed costs for this method indicate high feasibility for field applications.
{"title":"Black-odor water body remediations by ecological floating island coupled with Ecobase and Acinetobacter haemolyticus: Lab and pilot tests","authors":"Xiaoyuan Zhang ,&nbsp;Qing Qin ,&nbsp;Xuetong Zhai ,&nbsp;Hongliang Guo ,&nbsp;Song Han ,&nbsp;Jo-Shu Chang ,&nbsp;Duu-Jong Lee","doi":"10.1016/j.jtice.2025.106081","DOIUrl":"10.1016/j.jtice.2025.106081","url":null,"abstract":"<div><h3>Background</h3><div>Energy-efficient remediation technology for black and odorous water bodies in cold and salty areas is in high demand. This study experimentally investigated the performance of a novel integrated process at lab and pilot scales, in both batch and continuous-flow modes, to treat black and odorous lake water from Daqing City, China.</div></div><div><h3>Methods</h3><div>In 25-liter batch tests, relevant influence conditions were optimized. The 756-liter batch tests confirmed these results. Meanwhile, a continuous flow experiment was added to improve the removal rate of pollutants further.</div></div><div><h3>Significant findings</h3><div>In 25-liter batch tests maximum removal rates for COD, NH<sub>4</sub><sup>+</sup>-N, TP, and TN were 78.6 %, 72.3 %, 79.1 %, and 76.3 %, respectively, using reed plants and carbon fiber grass with L<sub>2</sub> bacteria under optimal conditions (two cfb per floating-island unit, pH 8, DO of 4 mg/L, 25–30 °C, microbial enhancer of 0.75 g/flu). The 756-liter batch tests confirmed these results, achieving improved removal rates of 80.4 %, 75.1 %, 75.5 %, and 78.4 % over 30 days. Continuous-flow tests yielded maximum removal rates of 85.2 %, 89.5 %, 87.4 %, and 90.1 % at an 8-hour HRT, demonstrating superior performance under short retention times. The study revealed interactions with the key biological processes during remediation. The proposed costs for this method indicate high feasibility for field applications.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106081"},"PeriodicalIF":5.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic response of monolayer H-phase VS2 nanosheets at room temperature: Implications for spintronics device
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-19 DOI: 10.1016/j.jtice.2025.106073
Amit Kumar Patel, Suyash Rai, Sajal Rai

Background

Transition metal dichalcogenides (TMDs), explicitly monolayer vanadium disulfide (VS2) in its H-phase, have gained remarkable attention due to their semiconducting nature, intrinsic magnetic properties at room temperature (RT), and potential use in future spintronic devices.

Method

In this study, we report an optimized, simple, and scalable synthesis of monolayer H-phase VS2 crystal using an atmospheric pressure chemical vapor deposition (APCVD) technique.

Significant findings

The Raman spectra and High-resolution transmission electron microscopy (HRTEM) image of the as-synthesized VS2 crystal reveal that the as-synthesized sample has an H-phase, and atomic force microscopy (AFM) confirms the presence of a monolayer with a step height of ∼ 0.7 nm. Further, the room temperature magnetic force microscopy (MFM) study gives a phase shift of 0.68° to 0.06° for the sample-tip variation from 20 nm to 140 nm in steps of 20 nm, suggesting an intrinsic long-range magnetic ordering in the as-synthesized VS2 crystal. The decrease in the MFM phase shift exhibits exponential dependence on the sample to AFM tip distance. Finally, our MFM phase shift measurement findings suggest a RT magnetic response in monolayer H-phase VS2 crystal. These results are much higher than the other previously reported MFM responses of metallic T-phase VS2, indicating robust experimental evidence for the magnetic behavior of monolayer H-phase VS2. Our study introduces a pathway to explore the opportunity for highly efficient future spintronic devices using 2D magnetic materials at RT.
背景过渡金属二掺杂物(TMDs),特别是H相单层二硫化钒(VS2),因其半导体性质、室温(RT)下的内在磁性以及在未来自旋电子器件中的潜在用途而备受关注。方法在本研究中,我们报告了利用常压化学气相沉积(APCVD)技术优化、简单和可扩展地合成单层H相VS2晶体的方法。重要发现合成的 VS2 晶体的拉曼光谱和高分辨率透射电子显微镜(HRTEM)图像显示,合成的样品具有 H 相,原子力显微镜(AFM)证实存在阶跃高度为 ∼ 0.7 nm 的单层。此外,室温磁力显微镜(MFM)研究显示,样品尖端从 20 nm 到 140 nm 以 20 nm 为步长的变化范围内,相移为 0.68° 到 0.06°,这表明在合成的 VS2 晶体中存在固有的长程磁有序性。MFM 相移的减小与样品到 AFM 针尖的距离呈指数关系。最后,我们的 MFM 相移测量结果表明,单层 H 相 VS2 晶体具有 RT 磁响应。这些结果远远高于之前报道的其他金属 T 相 VS2 的 MFM 响应,为单层 H 相 VS2 的磁性行为提供了有力的实验证据。我们的研究为探索未来在 RT 条件下使用二维磁性材料制造高效自旋电子器件提供了一条途径。
{"title":"Magnetic response of monolayer H-phase VS2 nanosheets at room temperature: Implications for spintronics device","authors":"Amit Kumar Patel,&nbsp;Suyash Rai,&nbsp;Sajal Rai","doi":"10.1016/j.jtice.2025.106073","DOIUrl":"10.1016/j.jtice.2025.106073","url":null,"abstract":"<div><h3>Background</h3><div>Transition metal dichalcogenides (TMDs), explicitly monolayer vanadium disulfide (VS<sub>2</sub>) in its H-phase, have gained remarkable attention due to their semiconducting nature, intrinsic magnetic properties at room temperature (RT), and potential use in future spintronic devices.</div></div><div><h3>Method</h3><div>In this study, we report an optimized, simple, and scalable synthesis of monolayer H-phase VS<sub>2</sub> crystal using an atmospheric pressure chemical vapor deposition (APCVD) technique.</div></div><div><h3>Significant findings</h3><div>The Raman spectra and High-resolution transmission electron microscopy (HRTEM) image of the as-synthesized VS<sub>2</sub> crystal reveal that the as-synthesized sample has an H-phase, and atomic force microscopy (AFM) confirms the presence of a monolayer with a step height of ∼ 0.7 nm. Further, the room temperature magnetic force microscopy (MFM) study gives a phase shift of 0.68° to 0.06° for the sample-tip variation from 20 nm to 140 nm in steps of 20 nm, suggesting an intrinsic long-range magnetic ordering in the as-synthesized VS<sub>2</sub> crystal. The decrease in the MFM phase shift exhibits exponential dependence on the sample to AFM tip distance. Finally, our MFM phase shift measurement findings suggest a RT magnetic response in monolayer H-phase VS<sub>2</sub> crystal. These results are much higher than the other previously reported MFM responses of metallic T-phase VS<sub>2,</sub> indicating robust experimental evidence for the magnetic behavior of monolayer H-phase VS<sub>2.</sub> Our study introduces a pathway to explore the opportunity for highly efficient future spintronic devices using 2D magnetic materials at RT.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106073"},"PeriodicalIF":5.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrahighly permeable carbon molecular sieving membranes enabled by blocking the precursor polyimide molecules with 6FAP moieties
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-19 DOI: 10.1016/j.jtice.2025.106096
Ying Zhang , Bing Zhang , Yonghong Wu , Tonghua Wang

Background

Selecting appropriate polymer precursors is essential for developing high-performance carbon molecular sieve membranes (CMSMs) for gas separation, as precursor structure significantly impacts the resulting membrane's thermal stability, microstructure, and gas transport properties.

Methods

This study reports the synthesis of a novel polyimide for CMSMs fabrication, which features a main chain backbone of tetrahydrocyclobuta (1,2-c:3,4-c') difuran-1,3,4,6-tetraone-1,4-bis (4-amino-2-trifluoromethylphenoxy) benzene (CBDA-6FAPB), with 2, 2-bis (3-amino-4-hydroxyphenyl) hexafluoropropane (6FAP) diamine as a block monomer via ternary co-polymerization. The thermal stability, surface functional groups, microstructure and morphology of the membranes were characterized by thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. The effects of varying 6FAP proportions, and the permeation conditions on the thermal stability of polyimide, the microstructure and gas separation performance of CMSMs were systematically investigated.

Significant findings

Results show that increasing the proportion of 6FAP enhances the selectivity of CMSMs, with the gas permeability initially rising then decreasing. Exceptionally ultrahigh permeabilities are achieved, corresponding to 7690.0 Barrer (H2), 2578.6 Barrer (CO2) and 1466.5 Barrer (O2), along with the selectivities of 31.0 (H2/N2), 10.4 (CO2/N2) and 5.9 (O2/N2), for CMSMs made by the proportion of 5% of 6FAP segments. In summary, the as-prepared CMSMs are excellent and promising with attractively commercial prospect.
{"title":"Ultrahighly permeable carbon molecular sieving membranes enabled by blocking the precursor polyimide molecules with 6FAP moieties","authors":"Ying Zhang ,&nbsp;Bing Zhang ,&nbsp;Yonghong Wu ,&nbsp;Tonghua Wang","doi":"10.1016/j.jtice.2025.106096","DOIUrl":"10.1016/j.jtice.2025.106096","url":null,"abstract":"<div><h3>Background</h3><div>Selecting appropriate polymer precursors is essential for developing high-performance carbon molecular sieve membranes (CMSMs) for gas separation, as precursor structure significantly impacts the resulting membrane's thermal stability, microstructure, and gas transport properties.</div></div><div><h3>Methods</h3><div>This study reports the synthesis of a novel polyimide for CMSMs fabrication, which features a main chain backbone of tetrahydrocyclobuta (1,2-c:3,4-c') difuran-1,3,4,6-tetraone-1,4-bis (4-amino-2-trifluoromethylphenoxy) benzene (CBDA-6FAPB), with 2, 2-bis (3-amino-4-hydroxyphenyl) hexafluoropropane (6FAP) diamine as a block monomer via ternary co-polymerization. The thermal stability, surface functional groups, microstructure and morphology of the membranes were characterized by thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. The effects of varying 6FAP proportions, and the permeation conditions on the thermal stability of polyimide, the microstructure and gas separation performance of CMSMs were systematically investigated.</div></div><div><h3>Significant findings</h3><div>Results show that increasing the proportion of 6FAP enhances the selectivity of CMSMs, with the gas permeability initially rising then decreasing. Exceptionally ultrahigh permeabilities are achieved, corresponding to 7690.0 Barrer (H<sub>2</sub>), 2578.6 Barrer (CO<sub>2</sub>) and 1466.5 Barrer (O<sub>2</sub>), along with the selectivities of 31.0 (H<sub>2</sub>/N<sub>2</sub>), 10.4 (CO<sub>2</sub>/N<sub>2</sub>) and 5.9 (O<sub>2</sub>/N<sub>2</sub>), for CMSMs made by the proportion of 5% of 6FAP segments. In summary, the as-prepared CMSMs are excellent and promising with attractively commercial prospect.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106096"},"PeriodicalIF":5.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exergy and exergoeconomic evaluation and optimal design of a solar-powered system integrated with PEM fuel cell and TEG for cleaner production
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-18 DOI: 10.1016/j.jtice.2025.106094
Mohammad Reza Sharifinasab , Shoaib Khanmohammadi

Background

Considerable increase in the energy consumption, raised concerns over clean energy production. The solar limitless energy is one of the renewable sources. Utilizing the solar energy, is perfectly suitable for location with high solar intensity.

Methods

In this research, a combined cooling and power (CCP) CO2 cycle, which is employing two ejectors and two evaporators is studied. LS-2 parabolic trough collector was modeled and Cu-water nanofluid was used to transfer the collected solar energy to the main cycle. Proton exchange membrane (PEM) fuel cell is employed to preheat the nanofluid and supply pumps power. The system operating conditions were optimized using evolutionary multi-objective genetic algorithm. The MATLAB software was used to perform the optimization procedure.

Significant Findings

Results indicate that the turbine can generate a power output of 9.247 kW. The specific exergy cost of turbine produced power was 97.050 $/GJ. The exergy destruction for PTC, PEM fuel cell, and turbine were 45.104 kW, 21.831 kW, and 0.999 kW, respectively which are caused by friction losses and irreversibilities of thermodynamic process. The exergy destruction of PTC was 61% of total exergy destruction. The evaluation of the system in different locations revealed that Riyadh and Baghdad have great potential for the proposed system. Additionally, the optimization results for proposed system revealed that the maximum obtainable work of turbine was 13.199 kW with a turbine power cost rate of 4.114 $/h. According to the proposed configuration which operates without the use of fossil fuels, this system could provide sustainable and clean power production for off-grid areas. Also, water as the product of the fuel cell is a clean product which is not harmful for environment. The findings for studied city which are high potential solar places supports the sustainability of the studied configuration.
{"title":"Exergy and exergoeconomic evaluation and optimal design of a solar-powered system integrated with PEM fuel cell and TEG for cleaner production","authors":"Mohammad Reza Sharifinasab ,&nbsp;Shoaib Khanmohammadi","doi":"10.1016/j.jtice.2025.106094","DOIUrl":"10.1016/j.jtice.2025.106094","url":null,"abstract":"<div><h3>Background</h3><div>Considerable increase in the energy consumption, raised concerns over clean energy production. The solar limitless energy is one of the renewable sources. Utilizing the solar energy, is perfectly suitable for location with high solar intensity.</div></div><div><h3>Methods</h3><div>In this research, a combined cooling and power (CCP) CO<sub>2</sub> cycle, which is employing two ejectors and two evaporators is studied. LS-2 parabolic trough collector was modeled and Cu-water nanofluid was used to transfer the collected solar energy to the main cycle. Proton exchange membrane (PEM) fuel cell is employed to preheat the nanofluid and supply pumps power. The system operating conditions were optimized using evolutionary multi-objective genetic algorithm. The MATLAB software was used to perform the optimization procedure.</div></div><div><h3>Significant Findings</h3><div>Results indicate that the turbine can generate a power output of 9.247 kW. The specific exergy cost of turbine produced power was 97.050 $/GJ. The exergy destruction for PTC, PEM fuel cell, and turbine were 45.104 kW, 21.831 kW, and 0.999 kW, respectively which are caused by friction losses and irreversibilities of thermodynamic process. The exergy destruction of PTC was 61% of total exergy destruction. The evaluation of the system in different locations revealed that Riyadh and Baghdad have great potential for the proposed system. Additionally, the optimization results for proposed system revealed that the maximum obtainable work of turbine was 13.199 kW with a turbine power cost rate of 4.114 $/h. According to the proposed configuration which operates without the use of fossil fuels, this system could provide sustainable and clean power production for off-grid areas. Also, water as the product of the fuel cell is a clean product which is not harmful for environment. The findings for studied city which are high potential solar places supports the sustainability of the studied configuration.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106094"},"PeriodicalIF":5.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical analysis of lithium-ion battery performance with new mini-channel configurations implementing hybrid nanofluid
IF 5.5 3区 工程技术 Q1 ENGINEERING, CHEMICAL Pub Date : 2025-03-16 DOI: 10.1016/j.jtice.2025.106074
M. Sheikholeslami , Z. Esmaeili , Ladan Momayez

Background

The thermal management of lithium-ion battery packs was thoroughly investigated in the current study, aiming to enhance cooling efficiency through innovative design approaches. This research evaluates the performance of four distinct mini-channel configurations—Smooth (simple rectangular), Grooved, Tooth, and Pin Fin—integrated with a hybrid nanofluid composed of water and Fe3O4-SWMCT nanoparticles.

Methods

These advanced cooling channels are designed to improve thermal regulation by optimizing the thermal characteristics of the system. The study employs a conduction-based model to simulate the unsteady heat source conditions representative of battery discharge cycles. Validation against published data confirms the high accuracy of the modeling approach.

Significant findings

Results demonstrate that the incorporation of nanoparticles in the cooling fluid contributes to a slight reduction in battery temperature, with cells located near the cooling channels exhibiting more uniform temperature distribution. Notably, the channel configuration with Pin fins proves to be the most effective, achieving a Nusselt number 5.03 times greater than that of the Smooth rectangular duct, indicating significantly improved heat transfer performance. Conversely, the channel design with Teeth showed the poorest hydraulic performance, with performance value of 0.84, while the Pin Fin configuration achieved the highest performance value of 2.62, signifying superior overall performance. This study highlights the crucial impact of channel geometry and cooling fluid composition on behavior of battery packs. By advancing the design and material use in cooling systems, the research contributes valuable insights for enhancing battery safety, efficiency, and longevity.
{"title":"Numerical analysis of lithium-ion battery performance with new mini-channel configurations implementing hybrid nanofluid","authors":"M. Sheikholeslami ,&nbsp;Z. Esmaeili ,&nbsp;Ladan Momayez","doi":"10.1016/j.jtice.2025.106074","DOIUrl":"10.1016/j.jtice.2025.106074","url":null,"abstract":"<div><h3>Background</h3><div>The thermal management of lithium-ion battery packs was thoroughly investigated in the current study, aiming to enhance cooling efficiency through innovative design approaches. This research evaluates the performance of four distinct mini-channel configurations—Smooth (simple rectangular), Grooved, Tooth, and Pin Fin—integrated with a hybrid nanofluid composed of water and Fe<sub>3</sub>O<sub>4</sub>-SWMCT nanoparticles.</div></div><div><h3>Methods</h3><div>These advanced cooling channels are designed to improve thermal regulation by optimizing the thermal characteristics of the system. The study employs a conduction-based model to simulate the unsteady heat source conditions representative of battery discharge cycles. Validation against published data confirms the high accuracy of the modeling approach.</div></div><div><h3>Significant findings</h3><div>Results demonstrate that the incorporation of nanoparticles in the cooling fluid contributes to a slight reduction in battery temperature, with cells located near the cooling channels exhibiting more uniform temperature distribution. Notably, the channel configuration with Pin fins proves to be the most effective, achieving a Nusselt number 5.03 times greater than that of the Smooth rectangular duct, indicating significantly improved heat transfer performance. Conversely, the channel design with Teeth showed the poorest hydraulic performance, with performance value of 0.84, while the Pin Fin configuration achieved the highest performance value of 2.62, signifying superior overall performance. This study highlights the crucial impact of channel geometry and cooling fluid composition on behavior of battery packs. By advancing the design and material use in cooling systems, the research contributes valuable insights for enhancing battery safety, efficiency, and longevity.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106074"},"PeriodicalIF":5.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Journal of the Taiwan Institute of Chemical Engineers
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