Pub Date : 2026-02-01DOI: 10.1016/S1872-5813(25)60601-3
Lu LIU, Shenyong REN, Chengshu YAO, Baojian SHEN, Chunming XU
Catalytic decomposition of methane, which produces high-purity hydrogen and high-value-added carbon nanomaterials, has shown considerable potential for development and is expected to yield significant economic benefits in the future. However, designing catalysts that simultaneously exhibit high activity and long-term stability remains a significant challenge. Tuning the catalyst's structure and electronic properties is an effective strategy for enhancing the reaction performance. In this work, a series of NixZr/ZSM-5 catalysts were prepared using the incipient wetness impregnation method, and the effect of Zr loadings on catalyst properties and performance was systematically investigated. The calcined and reduced catalysts were characterized by low-temperature N2 adsorption-desorption, XRD, SEM, H2-TPR and XPS. The results showed that the addition of Zr significantly increased the specific surface area of the catalyst and reduced the metal particle size. Smaller NiO particles were found to enter the pores of the HZSM-5 support, and electronic interactions between NiO and ZrO2 markedly enhanced the metal-support interaction. The catalyst exhibited optimal catalytic performance at a Zr loading of 5%, achieving a maximum methane conversion of 68% at 625 °C, maintaining activity for 900 min, and delivering a carbon yield of 1927%. Further increasing the Zr loading yielded only limited improvements in catalytic performance. Characterization of the spent catalysts and carbon products via TEM, Raman spectroscopy, and TGA revealed that the introduction of ZrO2 reduced metal sintering and promoted a shift in carbon nanofibers growth mode from tip-growth to base-growth. The mechanism of base-growth enabled the catalyst to maintain reaction activity for an extended period.
{"title":"The role of Zr in modulating the electronic and structural properties of supported Ni catalysts for catalytic decomposition of methane","authors":"Lu LIU, Shenyong REN, Chengshu YAO, Baojian SHEN, Chunming XU","doi":"10.1016/S1872-5813(25)60601-3","DOIUrl":"10.1016/S1872-5813(25)60601-3","url":null,"abstract":"<div><div>Catalytic decomposition of methane, which produces high-purity hydrogen and high-value-added carbon nanomaterials, has shown considerable potential for development and is expected to yield significant economic benefits in the future. However, designing catalysts that simultaneously exhibit high activity and long-term stability remains a significant challenge. Tuning the catalyst's structure and electronic properties is an effective strategy for enhancing the reaction performance. In this work, a series of Ni<em>x</em>Zr/ZSM-5 catalysts were prepared using the incipient wetness impregnation method, and the effect of Zr loadings on catalyst properties and performance was systematically investigated. The calcined and reduced catalysts were characterized by low-temperature N<sub>2</sub> adsorption-desorption, XRD, SEM, H<sub>2</sub>-TPR and XPS. The results showed that the addition of Zr significantly increased the specific surface area of the catalyst and reduced the metal particle size. Smaller NiO particles were found to enter the pores of the HZSM-5 support, and electronic interactions between NiO and ZrO<sub>2</sub> markedly enhanced the metal-support interaction. The catalyst exhibited optimal catalytic performance at a Zr loading of 5%, achieving a maximum methane conversion of 68% at 625 °C, maintaining activity for 900 min, and delivering a carbon yield of 1927%. Further increasing the Zr loading yielded only limited improvements in catalytic performance. Characterization of the spent catalysts and carbon products via TEM, Raman spectroscopy, and TGA revealed that the introduction of ZrO<sub>2</sub> reduced metal sintering and promoted a shift in carbon nanofibers growth mode from tip-growth to base-growth. The mechanism of base-growth enabled the catalyst to maintain reaction activity for an extended period.\u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (142KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 2","pages":"Article 20250192"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-01DOI: 10.1016/S1872-5813(25)60602-5
Peng WANG , Changqing DONG , Junjie XUE , Qi GAO , Xiaoying HU , Junjiao ZHANG , Jie ZHAO
Oxygen carriers play a fundamental role in chemical looping combustion (CLC). Iron-based carriers have been extensively investigated owing to their abundance and environmentally friendly. However, the reactivity and separability of iron-based carriers require further enhancement. This study investigates the effect of the concentration of Mn doping on reactivity, elastic properties and magnetic properties based on density functional theory (DFT) calculations. Theoretical results demonstrate that Mn doping effectively enhances reactivity by reducing the oxygen vacancy formation energy (Evac) from 2.33 to 0.87 eV. However, Mn doping introduces lattice distortions that deteriorate elastic properties, thereby reducing wear resistance, as evidenced by a 54.54% decrease in the hardness-to-Young's modulus ratio (HV/EV) for α-Fe2O3 and an 83.33% reduction for Fe3O4. Furthermore, Mn doping also modifies magnetic properties. The maximum of saturation magnetization (Ms) of Fe3O4 reaches 121.02 emu/g at 33.33% Mn doping concentration. Finally, systematic evaluation identifies 33.33% as the optimal Mn doping concentration, achieving a balance in enhanced reactivity, superior magnetic performance, and retained elastic stability.
{"title":"Effects of Mn doping on the reactivity, elastic, and magnetic properties of α-Fe2O3 based on DFT calculation","authors":"Peng WANG , Changqing DONG , Junjie XUE , Qi GAO , Xiaoying HU , Junjiao ZHANG , Jie ZHAO","doi":"10.1016/S1872-5813(25)60602-5","DOIUrl":"10.1016/S1872-5813(25)60602-5","url":null,"abstract":"<div><div>Oxygen carriers play a fundamental role in chemical looping combustion (CLC). Iron-based carriers have been extensively investigated owing to their abundance and environmentally friendly. However, the reactivity and separability of iron-based carriers require further enhancement. This study investigates the effect of the concentration of Mn doping on reactivity, elastic properties and magnetic properties based on density functional theory (DFT) calculations. Theoretical results demonstrate that Mn doping effectively enhances reactivity by reducing the oxygen vacancy formation energy (E<sub>vac</sub>) from 2.33 to 0.87 eV. However, Mn doping introduces lattice distortions that deteriorate elastic properties, thereby reducing wear resistance, as evidenced by a 54.54% decrease in the hardness-to-Young's modulus ratio (<em>H</em><sub>V</sub>/<em>E</em><sub>V</sub>) for α-Fe<sub>2</sub>O<sub>3</sub> and an 83.33% reduction for Fe<sub>3</sub>O<sub>4</sub>. Furthermore, Mn doping also modifies magnetic properties. The maximum of saturation magnetization (<em>M</em><sub>s</sub>) of Fe<sub>3</sub>O<sub>4</sub> reaches 121.02 emu/g at 33.33% Mn doping concentration. Finally, systematic evaluation identifies 33.33% as the optimal Mn doping concentration, achieving a balance in enhanced reactivity, superior magnetic performance, and retained elastic stability.\u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (92KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 2","pages":"Article 20250180"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01DOI: 10.1016/S1872-5813(25)60590-1
Jingzhou WANG, Chenzhong YAO, Xisheng ZHANG, Ziwei MA, Linfeng LI
In this study, a straightforward one-step hydrothermal method was successfully utilized to synthesize the solid solution Na0.9Mg0.45Ti3.55O8-Na2Ni2Ti6O16 (NNMTO-x), where x denotes the molar percentage of Na2Ni2Ti6O16 (NNTO) within Na0.9Mg0.45Ti3.55O8 (NMTO), with x values of 10, 20, 30, 40, and 50. Both XPS (X-ray Photoelectron Spectroscopy) and EDX (Energy Dispersive X-ray Spectroscopy) analyses unequivocally validated the formation of the NNMTO-x solid solutions. It was observed that when x is below 40, the NNMTO-x solid solution retains the structural characteristics of the original NMTO. However, beyond this threshold, significant alterations in crystal morphology were noted, accompanied by a noticeable decline in photocatalytic activity. Notably, the absorption edge of NNMTO-x (x<40) exhibited a shift towards the visible-light spectrum, thereby substantially broadening the absorption range. The findings highlight that NNMTO-30 possesses the most pronounced photocatalytic activity for the reduction of CO2. Specifically, after a 6 h irradiation period, the production rates of CO and CH4 were recorded at 42.38 and 1.47 μmol/g, respectively. This investigation provides pivotal insights that are instrumental in the advancement of highly efficient and stable photocatalysts tailored for CO2 reduction processes.
{"title":"Facile synthesis of Na0.9Mg0.45Ti3.55O8-Na2Ni2Ti6O16 solid solutions for improving photocatalytic CO2 reduction","authors":"Jingzhou WANG, Chenzhong YAO, Xisheng ZHANG, Ziwei MA, Linfeng LI","doi":"10.1016/S1872-5813(25)60590-1","DOIUrl":"10.1016/S1872-5813(25)60590-1","url":null,"abstract":"<div><div>In this study, a straightforward one-step hydrothermal method was successfully utilized to synthesize the solid solution Na<sub>0.9</sub>Mg<sub>0.45</sub>Ti<sub>3.55</sub>O<sub>8</sub>-Na<sub>2</sub>Ni<sub>2</sub>Ti<sub>6</sub>O<sub>16</sub> (NNMTO-<em>x</em>), where <em>x</em> denotes the molar percentage of Na<sub>2</sub>Ni<sub>2</sub>Ti<sub>6</sub>O<sub>16</sub> (NNTO) within Na<sub>0.9</sub>Mg<sub>0.45</sub>Ti<sub>3.55</sub>O<sub>8</sub> (NMTO), with <em>x</em> values of 10, 20, 30, 40, and 50. Both XPS (X-ray Photoelectron Spectroscopy) and EDX (Energy Dispersive X-ray Spectroscopy) analyses unequivocally validated the formation of the NNMTO-<em>x</em> solid solutions. It was observed that when <em>x</em> is below 40, the NNMTO-<em>x</em> solid solution retains the structural characteristics of the original NMTO. However, beyond this threshold, significant alterations in crystal morphology were noted, accompanied by a noticeable decline in photocatalytic activity. Notably, the absorption edge of NNMTO-<em>x</em> (<em>x</em><40) exhibited a shift towards the visible-light spectrum, thereby substantially broadening the absorption range. The findings highlight that NNMTO-30 possesses the most pronounced photocatalytic activity for the reduction of CO<sub>2</sub>. Specifically, after a 6 h irradiation period, the production rates of CO and CH<sub>4</sub> were recorded at 42.38 and 1.47 μmol/g, respectively. This investigation provides pivotal insights that are instrumental in the advancement of highly efficient and stable photocatalysts tailored for CO<sub>2</sub> reduction processes.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 1","pages":"Pages 1-11"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01DOI: 10.1016/S1872-5813(25)60594-9
Qi WANG , Lifang CHEN , Ruimin DING , Xi YIN
Hydrogen peroxide (H2O2) oxidation and reduction reactions (HPOR/HPRR) are pivotal in various innovative electrochemical energy conversion devices. A comprehensive understanding of these mechanisms is critical for catalyst design and performance improvement in these applications. In this work, we systematically investigate the HPOR/HPRR mechanisms on low-index Pt surfaces, specifically Pt(111), Pt(100) and Pt(110), through density functional theory (DFT) calculations combined with the computational hydrogen electrode (CHE) model. For HPOR, all the low-index Pt surfaces exhibit a unified potential-determining step (PDS) involving the electrochemical oxidation of hydroperoxyl intermediates (HOO*). The binding free energy of HOO* (ΔGHOO*) emerges as an activity descriptor, with Pt(110) exhibiting the highest HPOR activity. The HPRR mechanism follows a chem-electrochemical (C-EC) pathway. The rate-determining step (RDS) of HPRR is either the cleavage of the HO–OH bond (chemical) or the reduction of HO (electrochemical), depending on their respective activation energies. These activation energies are functions of the HO* binding free energy, ΔGHO*, establishing ΔGHO* as the descriptor for HPRR activity prediction. Pt(111) and Pt(100) are identified as the most active HPRR catalysts among the studied metal surfaces, although they still experience a significant overpotential. The scaling relationship between ΔGHOO* and ΔGHO* reveals a thermodynamic coupling of HPOR and HPRR, explaining their occurrence on Pt surfaces. These findings provide important insights and activity descriptors for both HPOR and HPRR, providing valuable guidance for the design of electrocatalysts in H2O2-related energy applications and fuel cells.
{"title":"Theoretical insights into the hydrogen peroxide oxidation and reduction reactions on low-index Pt surfaces","authors":"Qi WANG , Lifang CHEN , Ruimin DING , Xi YIN","doi":"10.1016/S1872-5813(25)60594-9","DOIUrl":"10.1016/S1872-5813(25)60594-9","url":null,"abstract":"<div><div>Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) oxidation and reduction reactions (HPOR/HPRR) are pivotal in various innovative electrochemical energy conversion devices. A comprehensive understanding of these mechanisms is critical for catalyst design and performance improvement in these applications. In this work, we systematically investigate the HPOR/HPRR mechanisms on low-index Pt surfaces, specifically Pt(111), Pt(100) and Pt(110), through density functional theory (DFT) calculations combined with the computational hydrogen electrode (CHE) model. For HPOR, all the low-index Pt surfaces exhibit a unified potential-determining step (PDS) involving the electrochemical oxidation of hydroperoxyl intermediates (HOO*). The binding free energy of HOO* (Δ<em>G</em><sub>HOO*</sub>) emerges as an activity descriptor, with Pt(110) exhibiting the highest HPOR activity. The HPRR mechanism follows a chem-electrochemical (C-EC) pathway. The rate-determining step (RDS) of HPRR is either the cleavage of the HO–OH bond (chemical) or the reduction of HO (electrochemical), depending on their respective activation energies. These activation energies are functions of the HO* binding free energy, Δ<em>G</em><sub>HO*</sub>, establishing Δ<em>G</em><sub>HO*</sub> as the descriptor for HPRR activity prediction. Pt(111) and Pt(100) are identified as the most active HPRR catalysts among the studied metal surfaces, although they still experience a significant overpotential. The scaling relationship between Δ<em>G</em><sub>HOO*</sub> and Δ<em>G</em><sub>HO*</sub> reveals a thermodynamic coupling of HPOR and HPRR, explaining their occurrence on Pt surfaces. These findings provide important insights and activity descriptors for both HPOR and HPRR, providing valuable guidance for the design of electrocatalysts in H<sub>2</sub>O<sub>2</sub>-related energy applications and fuel cells.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 1","pages":"Pages 1-11"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01DOI: 10.1016/S1872-5813(25)60597-4
Haiting ZHAO, Zheng YAN, Yang LIU, Longde JIANG, Jingde LUAN
The efficiency and stability of catalysts for photocatalytic hydrogen evolution (PHE) are largely governed by the charge transfer behaviors across the heterojunction interfaces. In this study, CuO, a typical semiconductor featuring a broad spectral absorption range, is successfully employed as the electron acceptor to combine with CdS for constructing a S-scheme heterojunction. The optimized photocatalyst (CdS-CuO2:1) delivers an exceptional hydrogen evolution rate of 18.89 mmol/(g·h), 4.15-fold higher compared with bare CdS. X-ray photoelectron spectroscopy (XPS) and ultraviolet-visible diffuse reflection absorption spectroscopy (UV-vis DRS) confirmed the S-scheme band structure of the composites. Moreover, the surface photovoltage (SPV) and electron paramagnetic resonance (EPR) indicated that the photogenerated electrons and photogenerated holes of CdS-CuO2:1 were respectively transferred to the conduction band (CB) of CdS with a higher reduction potential and the valence band (VB) of CuO with a higher oxidation potential under illumination, as expected for the S-scheme mechanism. Density-functional-theory calculations of the electron density difference (EDD) disclose an interfacial electric field oriented from CdS to CuO. This built-in field suppresses charge recombination and accelerates carrier migration, rationalizing the markedly enhanced PHE activity. This study offers a novel strategy for designing S-scheme heterojunctions with high light harvesting and charge utilization toward sustainable solar-to-hydrogen conversion.
{"title":"S-scheme unidirectional transmission of CdS-CuO heterojunction benefits for superior photocatalytic hydrogen evolution efficiency","authors":"Haiting ZHAO, Zheng YAN, Yang LIU, Longde JIANG, Jingde LUAN","doi":"10.1016/S1872-5813(25)60597-4","DOIUrl":"10.1016/S1872-5813(25)60597-4","url":null,"abstract":"<div><div>The efficiency and stability of catalysts for photocatalytic hydrogen evolution (PHE) are largely governed by the charge transfer behaviors across the heterojunction interfaces. In this study, CuO, a typical semiconductor featuring a broad spectral absorption range, is successfully employed as the electron acceptor to combine with CdS for constructing a S-scheme heterojunction. The optimized photocatalyst (CdS-CuO2:1) delivers an exceptional hydrogen evolution rate of 18.89 mmol/(g·h), 4.15-fold higher compared with bare CdS. X-ray photoelectron spectroscopy (XPS) and ultraviolet-visible diffuse reflection absorption spectroscopy (UV-vis DRS) confirmed the S-scheme band structure of the composites. Moreover, the surface photovoltage (SPV) and electron paramagnetic resonance (EPR) indicated that the photogenerated electrons and photogenerated holes of CdS-CuO2:1 were respectively transferred to the conduction band (CB) of CdS with a higher reduction potential and the valence band (VB) of CuO with a higher oxidation potential under illumination, as expected for the S-scheme mechanism. Density-functional-theory calculations of the electron density difference (EDD) disclose an interfacial electric field oriented from CdS to CuO. This built-in field suppresses charge recombination and accelerates carrier migration, rationalizing the markedly enhanced PHE activity. This study offers a novel strategy for designing S-scheme heterojunctions with high light harvesting and charge utilization toward sustainable solar-to-hydrogen conversion.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 1","pages":"Pages 1-13"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01DOI: 10.1016/S1872-5813(25)60599-8
Xing LIU , Shaoqing GUO , Haitao CUI , Zhenrong LI , Xin LI , Lei WANG , Xingjie WU , Xiaoxiao WANG , Lijing YUAN , Liangfu ZHAO
KIT-5/Beta composite supports were synthesized using an in situ self-assembly hydrothermal method, and NiW/KIT-5/Beta catalysts were prepared by impregnation. A series of characterization techniques were utilized to evaluate the influence of varying hydrothermal synthesis temperatures on the physicochemical properties of both the KIT-5/Beta supports and the resulting catalysts. The catalytic performances of catalysts were evaluated under reaction conditions of 320 °C, 4 MPa H2 pressure, and a weight hourly space velocity (WHSV) of 4.8 h−1 for hydrodenitrogenation (HDN) of quinoline. The results indicated that the specific surface area and pore structure of the materials could be effectively regulated by adjusting the hydrothermal synthesis temperature, which in turn influenced the number of active sites on the catalyst. The NiW/KB-125 catalyst, synthesized at 125 °C, presented the highest quinoline HDN efficiency (96.8%), which can be attributed to its favorable pore channel structure, greater Brønsted acid number, higher degree of metal sulfidation (80.12%) and appropriate metal-support interaction (MSI).
采用原位自组装水热法制备了KIT-5/Beta复合载体，并采用浸渍法制备了NiW/KIT-5/Beta催化剂。利用一系列表征技术来评价不同水热合成温度对KIT-5/Beta载体和催化剂理化性质的影响。在320℃、4 MPa H2压力、4.8 h - 1的失重时空速（WHSV）条件下，考察了催化剂对喹啉加氢脱氮（HDN）的催化性能。结果表明，通过调节水热合成温度可以有效地调节材料的比表面积和孔结构，从而影响催化剂上活性位点的数量。在125℃条件下合成的NiW/KB-125催化剂的喹啉HDN效率最高（96.8%），这主要归功于其良好的孔道结构、较大的Brønsted酸数、较高的金属硫化度（80.12%）和适当的金属-载体相互作用（MSI）。
{"title":"Design and synthesis of KIT-5/Beta composites under varied hydrothermal temperatures and evaluation of their hydrodenitrogenation performance","authors":"Xing LIU , Shaoqing GUO , Haitao CUI , Zhenrong LI , Xin LI , Lei WANG , Xingjie WU , Xiaoxiao WANG , Lijing YUAN , Liangfu ZHAO","doi":"10.1016/S1872-5813(25)60599-8","DOIUrl":"10.1016/S1872-5813(25)60599-8","url":null,"abstract":"<div><div>KIT-5/Beta composite supports were synthesized using an <em>in situ</em> self-assembly hydrothermal method, and NiW/KIT-5/Beta catalysts were prepared by impregnation. A series of characterization techniques were utilized to evaluate the influence of varying hydrothermal synthesis temperatures on the physicochemical properties of both the KIT-5/Beta supports and the resulting catalysts. The catalytic performances of catalysts were evaluated under reaction conditions of 320 °C, 4 MPa H<sub>2</sub> pressure, and a weight hourly space velocity (WHSV) of 4.8 h<sup>−1</sup> for hydrodenitrogenation (HDN) of quinoline. The results indicated that the specific surface area and pore structure of the materials could be effectively regulated by adjusting the hydrothermal synthesis temperature, which in turn influenced the number of active sites on the catalyst. The NiW/KB-125 catalyst, synthesized at 125 °C, presented the highest quinoline HDN efficiency (96.8%), which can be attributed to its favorable pore channel structure, greater Brønsted acid number, higher degree of metal sulfidation (80.12%) and appropriate metal-support interaction (MSI).</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 1","pages":"Pages 1-12"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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