Surfaces and Interfaces最新文献

英文中文

Incorporation of NiO on attapulgite supported Au catalyst for HCHO removal at low temperature

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-03-01 DOI: 10.1016/j.surfin.2025.106083

Dan Chen , Ming Zhai , Jing Zhang , Liqi Miao , Kan Li , Zhong Wang , Xiaozhi Wang

Gold-based catalysts are renowned for their exceptional low-temperature oxidation activity and have found widespread application in the thermos catalytic oxidation of formaldehyde (HCHO). In this study, an in-situ hydrothermal synthesis method was employed to prepare Au_0.5Ni_x/ATP catalysts. By altering the doping amount of Ni during the synthesis process, the impact of Ni doping on the catalytic reactivity was investigated. Compared to pure gold-based catalysts, the dispersion and sintering resistance of the Au_0.5Ni_x/ATP catalysts were enhanced. The OH^- ions present in the alkaline solution provided by TPAOH disrupted the morphology of ATP, leading to a flocculent appearance for the Au_0.5/ATP catalyst. With varying doping levels of Ni, the rod-like structure of ATP gradually recovered due to the strong interaction between Ni²⁺ and OH-. On the Au_0.5Ni_x/ATP catalysts, NiO, being a p-type semiconductor, was prone to electron loss, with the lost electrons being captured by Au³⁺ to form Au⁰ and stronger Au and Ni interactions. When Ni species were introduced onto the Au/ATP surface, the synergistic effect between Au and Ni resulted in higher catalytic activity, favoring the catalytic oxidation of HCHO. The catalytic efficiency peaked when the Ni doping level reached 20 wt%.

{"title":"Incorporation of NiO on attapulgite supported Au catalyst for HCHO removal at low temperature","authors":"Dan Chen , Ming Zhai , Jing Zhang , Liqi Miao , Kan Li , Zhong Wang , Xiaozhi Wang","doi":"10.1016/j.surfin.2025.106083","DOIUrl":"10.1016/j.surfin.2025.106083","url":null,"abstract":"<div><div>Gold-based catalysts are renowned for their exceptional low-temperature oxidation activity and have found widespread application in the thermos catalytic oxidation of formaldehyde (HCHO). In this study, an in-situ hydrothermal synthesis method was employed to prepare Au<sub>0.5</sub>Ni<sub>x</sub>/ATP catalysts. By altering the doping amount of Ni during the synthesis process, the impact of Ni doping on the catalytic reactivity was investigated. Compared to pure gold-based catalysts, the dispersion and sintering resistance of the Au<sub>0.5</sub>Ni<sub>x</sub>/ATP catalysts were enhanced. The OH<sup>-</sup> ions present in the alkaline solution provided by TPAOH disrupted the morphology of ATP, leading to a flocculent appearance for the Au<sub>0.5</sub>/ATP catalyst. With varying doping levels of Ni, the rod-like structure of ATP gradually recovered due to the strong interaction between Ni<sup>2+</sup> and OH-. On the Au<sub>0.5</sub>Ni<sub>x</sub>/ATP catalysts, NiO, being a p-type semiconductor, was prone to electron loss, with the lost electrons being captured by Au<sup>3+</sup> to form Au<sup>0</sup> and stronger Au and Ni interactions. When Ni species were introduced onto the Au/ATP surface, the synergistic effect between Au and Ni resulted in higher catalytic activity, favoring the catalytic oxidation of HCHO. The catalytic efficiency peaked when the Ni doping level reached 20 wt%.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"60 ","pages":"Article 106083"},"PeriodicalIF":5.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of electrochemically stable 3D V2O5/Nickel foam electrode with enhanced photoelectrochemical activity for high-performance glucose sensing

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-03-01 DOI: 10.1016/j.surfin.2025.106097

Muhammad Hilal , Yasir Ali , Zhicheng Cai , Hyojung Kim , Hany S. Abdo , Ibrahim A. Alnaser , Yongha Hwang , Jeong In Han

With the growing demand for robust and cost-effective glucose sensors, the advancement of non-enzymatic photoelectrochemical (PEC) alternatives is becoming increasingly crucial. This study presents a novel 3D V₂O₅/NF electrode, synthesized without surfactants or reducing agents to ensure pristine quality and optimal performance. The V₂O₅ was directly grown on nickel foam, achieving an electrochemical active surface area (EASA) of 58.5 cm² and demonstrating favorable band edge potentials (E_CB = -0.72 eV, E_VB = 1.43 eV vs. NHE) that enhance the efficiency of glucose oxidation under light irradiation. The electrode exhibits outstanding PEC glucose sensing capabilities with a sensitivity of 82 µA.mM^-1.cm^-2, a rapid response time of 5 s, and a broad linear detection range from 0.3 to 8.5 mM. Real-sample analysis with mango juice confirmed its practical applicability, highlighting its robust glucose detection in complex matrices. Notably, it maintains superior stability with a relative standard deviation (RSD) of 20 % over 15 days and shows excellent reproducibility, with an RSD of 5.56 % across different electrode batches. This advancement establishes a new benchmark in non-enzymatic PEC glucose sensing, paving the way for future innovations in high-performance electrochemical sensors.

{"title":"Fabrication of electrochemically stable 3D V2O5/Nickel foam electrode with enhanced photoelectrochemical activity for high-performance glucose sensing","authors":"Muhammad Hilal , Yasir Ali , Zhicheng Cai , Hyojung Kim , Hany S. Abdo , Ibrahim A. Alnaser , Yongha Hwang , Jeong In Han","doi":"10.1016/j.surfin.2025.106097","DOIUrl":"10.1016/j.surfin.2025.106097","url":null,"abstract":"<div><div>With the growing demand for robust and cost-effective glucose sensors, the advancement of non-enzymatic photoelectrochemical (PEC) alternatives is becoming increasingly crucial. This study presents a novel 3D V<sub>2</sub>O<sub>5</sub>/NF electrode, synthesized without surfactants or reducing agents to ensure pristine quality and optimal performance. The V<sub>2</sub>O<sub>5</sub> was directly grown on nickel foam, achieving an electrochemical active surface area (EASA) of 58.5 cm<sup>2</sup> and demonstrating favorable band edge potentials (E<sub>CB</sub> = -0.72 eV, E<sub>VB</sub> = 1.43 eV vs. NHE) that enhance the efficiency of glucose oxidation under light irradiation. The electrode exhibits outstanding PEC glucose sensing capabilities with a sensitivity of 82 µA.mM<sup>-1</sup>.cm<sup>-2</sup>, a rapid response time of 5 s, and a broad linear detection range from 0.3 to 8.5 mM. Real-sample analysis with mango juice confirmed its practical applicability, highlighting its robust glucose detection in complex matrices. Notably, it maintains superior stability with a relative standard deviation (RSD) of 20 % over 15 days and shows excellent reproducibility, with an RSD of 5.56 % across different electrode batches. This advancement establishes a new benchmark in non-enzymatic PEC glucose sensing, paving the way for future innovations in high-performance electrochemical sensors.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"60 ","pages":"Article 106097"},"PeriodicalIF":5.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability of amorphous alumina layers deposited on platinum films by r.f. magnetron sputtering in water solutions. A microscopic approach based on scanning electrochemical microscopy

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-03-01 DOI: 10.1016/j.surfin.2025.106092

Dario Battistel , Carlo Bragato , M. Antonietta Baldo , Elti Cattaruzza , Salvatore Daniele

A series of bilayers, formed by amorphous Al₂O₃ (thickness in the range 60–1000 nm) and Pt (thickness 300 nm) films, deposited by r.f. magnetron sputtering on a silicon substrate, was investigated by scanning electrochemical microscopy (SECM) to establish the stability of Al₂O₃ in contact with aqueous solutions, containing various electrolytes at different pH. Under mild acidic conditions (pH 6.5–4.6), SECM responses indicated that the Al₂O₃ layers were stable. To achieve more acidic (pH < 3) and basic (pH > 9) conditions, avoiding the use of harmful strong acids or bases, local H⁺ and OH^- challenges were electrogenerated at the SECM tip through water electrolysis at constant currents. pH 2.3 and 11.6 were attained on the Al₂O₃ surface, as predicted by finite element simulation. At low pH, a slow dissolution kinetic was involved. At high pH, the formation of the soluble AlO₂^- species triggered a faster alumina dissolution, which led to the formation of etch pits. The geometric features of the etch pits, evaluated by SECM as a function of the electrolysis time, afforded to a mass dissolution rate of 6.7 (± 0.6) × 10⁻¹² moles·min⁻¹ and to a vertical dissolution rate of 308 (± 15) nm·h⁻¹.

{"title":"Stability of amorphous alumina layers deposited on platinum films by r.f. magnetron sputtering in water solutions. A microscopic approach based on scanning electrochemical microscopy","authors":"Dario Battistel , Carlo Bragato , M. Antonietta Baldo , Elti Cattaruzza , Salvatore Daniele","doi":"10.1016/j.surfin.2025.106092","DOIUrl":"10.1016/j.surfin.2025.106092","url":null,"abstract":"<div><div>A series of bilayers, formed by amorphous Al<sub>2</sub>O<sub>3</sub> (thickness in the range 60–1000 nm) and Pt (thickness 300 nm) films, deposited by r.f. magnetron sputtering on a silicon substrate, was investigated by scanning electrochemical microscopy (SECM) to establish the stability of Al<sub>2</sub>O<sub>3</sub> in contact with aqueous solutions, containing various electrolytes at different pH. Under mild acidic conditions (pH 6.5–4.6), SECM responses indicated that the Al<sub>2</sub>O<sub>3</sub> layers were stable. To achieve more acidic (pH < 3) and basic (pH > 9) conditions, avoiding the use of harmful strong acids or bases, local H<sup>+</sup> and OH<sup>-</sup> challenges were electrogenerated at the SECM tip through water electrolysis at constant currents. pH 2.3 and 11.6 were attained on the Al<sub>2</sub>O<sub>3</sub> surface, as predicted by finite element simulation. At low pH, a slow dissolution kinetic was involved. At high pH, the formation of the soluble AlO<sub>2</sub><sup>-</sup> species triggered a faster alumina dissolution, which led to the formation of etch pits. The geometric features of the etch pits, evaluated by SECM as a function of the electrolysis time, afforded to a mass dissolution rate of 6.7 (± 0.6) × 10⁻¹² moles·min⁻¹ and to a vertical dissolution rate of 308 (± 15) nm·h⁻¹.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"60 ","pages":"Article 106092"},"PeriodicalIF":5.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The microbe-loaded silica hollow spheres doped PVDF membrane prepared by green solvent casting method for efficient oil-water separation

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-03-01 DOI: 10.1016/j.surfin.2025.106085

Nannan Qu , Lihua Chen , LiChun Huo , Bin Zhang , Yanyu He , Yuhan Zhang , Qi-Meige Hasi

Superhydrophobic membrane that is highly resistant to wetting by aqueous solution has gained great attention because of its potential to be applied in many emerging membrane processes such as oil/water separation. In this paper, we report the design and preparation of novel composite membranes with anti-fouling and anti-plugging performance by dopping of microbe-loaded silica hollow spheres into PVDF membrane by green solvent casting method for efficient oil-water separation, named after STEP/PVDF-SHMs. The as-prepared composite membranes shows that The prepared composite membranes showed superhydrophobicity with hydrophobicity angle reaching 153.2° and excellent self-cleaning ability. Meanwhile, the STEP/PVDF-SHMs membrane has excellent continuous oil-water separation performance, and the cyclic separation efficiency of light oil can reach >98 % through 10 times of continuous oil-water separation experiments. Under the premise of oil-water separation, it still has excellent degradation ability, and the membrane can remove up to 90.79 % of 5 % diesel oil degradation in 240 h, which is far more than similar materials. With the advantages of excellent membrane flux (membrane flux 1440 L m⁻² h⁻¹), excellent chemical stability, large-scale usability, easy shape control, low cost, reproducibility and sustainability, such composite membranes may have great potential for practical applications for the treatment of oily wastewater.

{"title":"The microbe-loaded silica hollow spheres doped PVDF membrane prepared by green solvent casting method for efficient oil-water separation","authors":"Nannan Qu , Lihua Chen , LiChun Huo , Bin Zhang , Yanyu He , Yuhan Zhang , Qi-Meige Hasi","doi":"10.1016/j.surfin.2025.106085","DOIUrl":"10.1016/j.surfin.2025.106085","url":null,"abstract":"<div><div>Superhydrophobic membrane that is highly resistant to wetting by aqueous solution has gained great attention because of its potential to be applied in many emerging membrane processes such as oil/water separation. In this paper, we report the design and preparation of novel composite membranes with anti-fouling and anti-plugging performance by dopping of microbe-loaded silica hollow spheres into PVDF membrane by green solvent casting method for efficient oil-water separation, named after STEP/PVDF-SHMs. The as-prepared composite membranes shows that The prepared composite membranes showed superhydrophobicity with hydrophobicity angle reaching 153.2° and excellent self-cleaning ability. Meanwhile, the STEP/PVDF-SHMs membrane has excellent continuous oil-water separation performance, and the cyclic separation efficiency of light oil can reach >98 % through 10 times of continuous oil-water separation experiments. Under the premise of oil-water separation, it still has excellent degradation ability, and the membrane can remove up to 90.79 % of 5 % diesel oil degradation in 240 h, which is far more than similar materials. With the advantages of excellent membrane flux (membrane flux 1440 L m<sup>−2</sup> h<sup>−1</sup>), excellent chemical stability, large-scale usability, easy shape control, low cost, reproducibility and sustainability, such composite membranes may have great potential for practical applications for the treatment of oily wastewater.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106085"},"PeriodicalIF":5.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel corn stalks derived activated carbon for promising adsorption of lead (II) from aqueous solution: Characterization, IoT real-time monitoring, and performance investigation

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-28 DOI: 10.1016/j.surfin.2025.106138

Dahlang Tahir, Heryanto Heryanto

Contamination of water sources by (Pb(II)) presents significant environmental and public health challenges. AC samples were prepared at various temperatures (500 °C, 700 °C, and 900 °C) using 3M KOH activation, where AC prepared at 500 °C achieved the maximum Pb(II) removal efficiency of 98.15 % and an adsorption capacity of 255.6 mg/g without stirring to handle the actual environmental conditions. Here, the application of the Internet of Things (IoT) has been successfully implemented for monitoring Pb(II) removal, and activated carbon (AC) derived from corn stalks has been synthesized as an adsorbent. Real-time IoT monitoring confirmed the adsorbent's efficacy, showing a significant decrease in Pb(II) concentration from 13.02 mg/L to 0.24 mg/L. Optimal adsorption conditions were found at pH 7.2, working temperature 26.3 °C, and contact time 90–180 min. The performance of AC 500 °C is attributed to its favourable structure, such as the broadening of phonon vibrations (Δ(LO − TO)), the corresponding amorphous index (X_a) and high electron loss function (ELF) wave number shift, including porous structure that forms a pipe-like shape with holes in the body. Additionally, BET analysis showed a high specific surface area in each sample (>1000 m²/g). After three consecutive rounds of cyclic remediation, the AC prepared at 500 °C still showed high adsorption efficiency (72.65 %).

{"title":"Novel corn stalks derived activated carbon for promising adsorption of lead (II) from aqueous solution: Characterization, IoT real-time monitoring, and performance investigation","authors":"Dahlang Tahir, Heryanto Heryanto","doi":"10.1016/j.surfin.2025.106138","DOIUrl":"10.1016/j.surfin.2025.106138","url":null,"abstract":"<div><div>Contamination of water sources by (Pb(II)) presents significant environmental and public health challenges. AC samples were prepared at various temperatures (500 °C, 700 °C, and 900 °C) using 3M KOH activation, where AC prepared at 500 °C achieved the maximum Pb(II) removal efficiency of 98.15 % and an adsorption capacity of 255.6 mg/g without stirring to handle the actual environmental conditions. Here, the application of the Internet of Things (IoT) has been successfully implemented for monitoring Pb(II) removal, and activated carbon (AC) derived from corn stalks has been synthesized as an adsorbent. Real-time IoT monitoring confirmed the adsorbent's efficacy, showing a significant decrease in Pb(II) concentration from 13.02 mg/L to 0.24 mg/L. Optimal adsorption conditions were found at pH 7.2, working temperature 26.3 °C, and contact time 90–180 min. The performance of AC 500 °C is attributed to its favourable structure, such as the broadening of phonon vibrations (Δ(<em>LO</em> − <em>TO</em>)), the corresponding amorphous index (<em>X<sub>a</sub></em>) and high electron loss function (ELF) wave number shift, including porous structure that forms a pipe-like shape with holes in the body. Additionally, BET analysis showed a high specific surface area in each sample (>1000 m<sup>2</sup>/g). After three consecutive rounds of cyclic remediation, the AC prepared at 500 °C still showed high adsorption efficiency (72.65 %).</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106138"},"PeriodicalIF":5.7,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Positron annihilation spectroscopy study of polyethyleneimine-modified mesoporous cellular foam under different atmospheres

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-28 DOI: 10.1016/j.surfin.2025.106139

Yan Li , Jing Yang , Rong Wang , Tao Zhang , Runsheng Yu , Juncai Dong , Peng Zhang , Xingzhong Cao , Baoyi Wang

A novel mesoporous cellular foam (MCF) was prepared and modified with polyethyleneimine (PEI, 60 wt%) with varying molecular weights (M.W. 600, 1800, 10,000). The effects of PEI-modified MCF on nano-scale pore structure were systematically studied by positron annihilation lifetime spectroscopy (PALS), coincidence Doppler broadening spectroscopy (CDB) and conventional characterization methods, such as N₂ adsorption and desorption, Fourier transform infrared spectroscopy, small angle X-ray scattering (SAXS) and CO₂ adsorption analysis. Positron annihilation CDB test of PEIs/MCF were performed under vacuum conditions and N₂, CO₂, air, O₂ atmospheres respectively. Samples MCF and MCF-20–600 (20 wt% of PEI), which are sensitive to atmospheric changes, were selected for PALS test, the annihilation mechanism of positrons in different atmospheres was investigated, and it was found that the long-lifetime of ortho-positronium (o-Ps) decreased obviously in O₂ atmospheres, which may be related to the spin conversion quenching of o-Ps, and calculate the mesoporous size with theoretical models, and it was found that after the impregnation of PEI into MCF, the mesopore size decreases. The results show that the MCF modified with lower molecular weight PEI showed higher CO₂ adsorption capacity. This will provide a new idea for exploring the pore structure characterization of PEI modified MCF.

{"title":"Positron annihilation spectroscopy study of polyethyleneimine-modified mesoporous cellular foam under different atmospheres","authors":"Yan Li , Jing Yang , Rong Wang , Tao Zhang , Runsheng Yu , Juncai Dong , Peng Zhang , Xingzhong Cao , Baoyi Wang","doi":"10.1016/j.surfin.2025.106139","DOIUrl":"10.1016/j.surfin.2025.106139","url":null,"abstract":"<div><div>A novel mesoporous cellular foam (MCF) was prepared and modified with polyethyleneimine (PEI, 60 wt%) with varying molecular weights (M.W. 600, 1800, 10,000). The effects of PEI-modified MCF on nano-scale pore structure were systematically studied by positron annihilation lifetime spectroscopy (PALS), coincidence Doppler broadening spectroscopy (CDB) and conventional characterization methods, such as N<sub>2</sub> adsorption and desorption, Fourier transform infrared spectroscopy, small angle X-ray scattering (SAXS) and CO<sub>2</sub> adsorption analysis. Positron annihilation CDB test of PEIs/MCF were performed under vacuum conditions and N<sub>2</sub>, CO<sub>2</sub>, air, O<sub>2</sub> atmospheres respectively. Samples MCF and MCF-20–600 (20 wt% of PEI), which are sensitive to atmospheric changes, were selected for PALS test, the annihilation mechanism of positrons in different atmospheres was investigated, and it was found that the long-lifetime of ortho-positronium (o-Ps) decreased obviously in O<sub>2</sub> atmospheres, which may be related to the spin conversion quenching of o-Ps, and calculate the mesoporous size with theoretical models, and it was found that after the impregnation of PEI into MCF, the mesopore size decreases. The results show that the MCF modified with lower molecular weight PEI showed higher CO<sub>2</sub> adsorption capacity. This will provide a new idea for exploring the pore structure characterization of PEI modified MCF.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106139"},"PeriodicalIF":5.7,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CO2 reduction to CH4: Harnessing Fe1@B12N12 as single atom catalyst for environment restoration

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-28 DOI: 10.1016/j.surfin.2025.106062

Abdulrahman Allangawi , Khurshid Ayub , Abdulaziz A. Al-Saadi , Mazhar Amjad Gilani , Tariq Mahmood

The increased emissions of CO₂ in recent years have been a leading cause of the global warming crisis. Nowadays, carbon conversion technologies represent a potential solution to convert CO₂ into valuable products, instead of emitting it into the atmosphere. This study introduces the iron-doped boron nitride nanocage (Fe₁@B₁₂N₁₂) as a novel single-atom catalyst (SAC) for the electrochemical reduction of CO₂. Utilizing the density functional theory (DFT) calculations, herein we explored the stability, conductivity, and catalytic pathways of Fe₁@B₁₂N₁₂ complex toward the CO₂ reduction to CH₄. The system demonstrates a robust interaction between Fe and the B₁₂N₁₂ nanocage, having strong interaction energy of -1.34 eV, ensuring high stability and effective dispersion of Fe on B₁₂N₁₂. The incorporation of Fe significantly enhances the electrical conductivity of the nanocage by reducing the energy gap from a value of 6.86 eV for the pristine nanocage to a value of 4.20 eV for the doped structure. This reduction in the energy gap facilitates the electron transfer during the carbon reduction reaction (CRR). The analysis of the catalytic pathways reveals that the designed SAC can convert CO₂ into valuable products like CH₄ and H₂O.The associated overpotentials for the CRR are 1.00 V for the COOH pathway and 0.92 V for the HCOO pathway. The results of this study represent Fe₁@B₁₂N₁₂ as an active, noble-metal-free SAC for the CRR. This study offers a sustainable solution to convert CO₂ into valuable products, which mitigates greenhouse gas emissions.

{"title":"CO2 reduction to CH4: Harnessing Fe1@B12N12 as single atom catalyst for environment restoration","authors":"Abdulrahman Allangawi , Khurshid Ayub , Abdulaziz A. Al-Saadi , Mazhar Amjad Gilani , Tariq Mahmood","doi":"10.1016/j.surfin.2025.106062","DOIUrl":"10.1016/j.surfin.2025.106062","url":null,"abstract":"<div><div>The increased emissions of CO<sub>2</sub> in recent years have been a leading cause of the global warming crisis. Nowadays, carbon conversion technologies represent a potential solution to convert CO<sub>2</sub> into valuable products, instead of emitting it into the atmosphere. This study introduces the iron-doped boron nitride nanocage (Fe<sub>1</sub>@B<sub>12</sub>N<sub>12</sub>) as a novel single-atom catalyst (SAC) for the electrochemical reduction of CO<sub>2</sub>. Utilizing the density functional theory (DFT) calculations, herein we explored the stability, conductivity, and catalytic pathways of Fe<sub>1</sub>@B<sub>12</sub>N<sub>12</sub> complex toward the CO<sub>2</sub> reduction to CH<sub>4</sub>. The system demonstrates a robust interaction between Fe and the B<sub>12</sub>N<sub>12</sub> nanocage, having strong interaction energy of -1.34 eV, ensuring high stability and effective dispersion of Fe on B<sub>12</sub>N<sub>12</sub>. The incorporation of Fe significantly enhances the electrical conductivity of the nanocage by reducing the energy gap from a value of 6.86 eV for the pristine nanocage to a value of 4.20 eV for the doped structure. This reduction in the energy gap facilitates the electron transfer during the carbon reduction reaction (CRR). The analysis of the catalytic pathways reveals that the designed SAC can convert CO<sub>2</sub> into valuable products like CH<sub>4</sub> and H<sub>2</sub>O.The associated overpotentials for the CRR are 1.00 V for the COOH pathway and 0.92 V for the HCOO pathway. The results of this study represent Fe<sub>1</sub>@B<sub>12</sub>N<sub>12</sub> as an active, noble-metal-free SAC for the CRR. This study offers a sustainable solution to convert CO<sub>2</sub> into valuable products, which mitigates greenhouse gas emissions.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106062"},"PeriodicalIF":5.7,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the optoelectronic potential of dip coated CuInS2 thin films via morphological, structural, and photoresponse insights

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-28 DOI: 10.1016/j.surfin.2025.106098

Ranjan Kr. Giri , Sunil H. Chaki , Ankurkumar J. Khimani , Milind P. Deshpande

In this present study, the dip coating technique is adopted to deposit copper indium disulfide (CuInS₂) thin films onto a glass substrate. The scanning electron microscopy (SEM) shows that the film thickness is (1.18 ± 0.06) µm. The transmission electron microscopy (TEM) confirms the crystalline character of the CIS (CuInS₂) thin films having fringe spacing consistent with the CIS major crystallographic (112) plane lattice spacing. The atomic force microscopy (AFM) reveals the presence of surface roughness-related hills and valleys. The X-ray diffraction (XRD) data show that the film has a tetragonal unit cell structure and is in the CIS phase. The elemental stoichiometry is validated by energy-dispersive X-ray spectroscopy (EDS) analysis. From the results of the ultraviolet-visible-near infrared spectroscopy (UV–Vis–NIR), an optical bandgap (direct) of 1.62 eV is found. Three different monochromatic incident photon wavelengths (480 nm, 560 nm, and 670 nm) are used to investigate the photoresponse of the CIS photodetector. When exposed to 670 nm (red) light with 5 mW·cm^-2 intensity and 100 mV bias voltage, the peak responsivity and detectivity for CIS thin films are determined to be 2.14 mA·W^-1 and 1.54 × 10⁹ Jones, respectively. It validates that the dip-coated CIS thin film has the potential for usage in optoelectronic devices 1,2.

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引用次数: 0

Highly conductive flexible printed patterns based on magnetic core-shell copper-coated-nickel nanoparticles catalyzing dimethylamine borane electroless plating copper

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-28 DOI: 10.1016/j.surfin.2025.106128

Yabing Zhang , Xiaofeng Dai , Hongbin Shi , Tao Wang

In this work, we demonstrate the catalytic application of magnetic core-shell copper-coated-nickel (Ni@Cu) nanoparticles (NPs) for dimethylamine borane (DMAB) reduced electroless plating copper to fabricate flexible, highly conductive copper patterns. The Ni@Cu NPs, with size of 40 to 46 nm and saturation magnetization of 9.13 emu/g, exhibited strong magnetism, which can be separated by a magnet. Furthermore, the NPs possessed superparamagetism, which meant that the NPs could quickly redisperse in a solvent once the external magnetic field was removed. The core-shell structure of Ni@Cu NPs offered distinct advantages: the nickel core facilitated straightforward magnetic separation, while the copper shell ensured effective dispersion and robust catalytic activity. As the catalyst seeds for electroless plating copper, the Ni@Cu NPs exhibited superior catalytic activity for preparing conductive, adhesive, antioxidative, and bendable flexible copper patterns. The resistivity of the obtained conductive copper patterns was quite low, approximately 1.2 times that of bulk copper. The surface of the copper patterns was smooth, with a relative roughness of 2.67 %, and remained stable under 2000 cycles bending test and 50 cycles 3 M tape test, without any increase in sheet resistance or detachment of the conductive coating. The results of this research will provide new perspectives and basics for the low-cost and large-scale preparation of flexible printed circuits, and will promote the development of the flexible electronics industry towards high efficiency and environmental friendliness.

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引用次数: 0

Interface states in semiconductor and their influence on Schottky barrier in β-Ga2O3

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-27 DOI: 10.1016/j.surfin.2025.105996

Qiangmin Wei, Xinglin Liu

The density of surface and interface states versus Schottky barrier in

β

-Ga

_{2}

_{3}

has been numerically calculated by taking into account of neutrality level, work function, intermediate insulator thickness, and dopant concentration. It was found there exists a critical neutrality level at which interfacial state has the minimum effects on the Schottky barrier. Comparison with experimental observations shows Ohmic contact exhibits a lower neutrality level resulting in the rise of Schottky barrier and Schottky contact has a higher neutrality level leading to the drop of Schottky barrier. The findings indicate Ohmic contact or Schottky contact can be improved if more acceptor type defects or more donor type defects are generated on the interface after treatment respectively.

引用次数: 0

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