Materials Today Catalysis最新文献_第3页

Construction of self-supporting heterobimetallic phosphides for oxygen evolution reaction 用于析氧反应的自支撑杂双金属磷化物的构建

Materials Today Catalysis Pub Date : 2025-09-01 Epub Date: 2025-08-12 DOI: 10.1016/j.mtcata.2025.100114

Adjapong Linda Akua Agyapomaa , Chulong Jin , Qingqing Zhang, Xiaojun Zeng

{"title":"Construction of self-supporting heterobimetallic phosphides for oxygen evolution reaction","authors":"Adjapong Linda Akua Agyapomaa , Chulong Jin , Qingqing Zhang, Xiaojun Zeng","doi":"10.1016/j.mtcata.2025.100114","DOIUrl":"10.1016/j.mtcata.2025.100114","url":null,"abstract":"<div><div>Electrocatalysts with heterobimetallic active sites are considered to be effective geometries for electrocatalytic oxygen evolution reaction (OER). However, MOF-derived heterobimetallic phosphides are uncontrollable and the addition of traditional binders is complicated. Here, we designed an efficient defect-rich (NF/Ni<sub>2</sub>P-Fe<sub>2</sub>P@NC) heterostructure derived from NF/Fe-MOF, in which nickel foam (NF) provides a supporting role and Ni source to promote the formation of heterobimetallic phosphides (Ni<sub>2</sub>P, Fe<sub>2</sub>P). NF/Ni<sub>2</sub>P-Fe<sub>2</sub>P@NC inherits remarkable OER performance with ultralow overpotential of 123 mV at a current density of 10 mA cm<sup>−2</sup> and Tafel slope of 51. 3 mV dec<sup>−1</sup> in alkaline electrolyte. The experimental results unravel that the multi-components (Ni<sub>2</sub>P, Fe<sub>2</sub>P, NC), rich heterogeneous interfaces (Ni<sub>2</sub>P/Fe<sub>2</sub>P), and numerous defects in the heterostructure provide abundant active sites, optimize the electronic structure, and improve the exposure of active sites, thereby promoting the electrocatalytic OER process. Density functional theory (DFT) calculations confirm that the free energy barrier for the catalyst to generate *OOH intermediates is low. Our findings present a simple and economical approach to obtaining heterobimetallic phosphides with robust OER performance.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100114"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831585","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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La-doped and AgO-loading g-C3N4 heterojunctions for enhanced photocatalytic hydrogen evolution from water splitting la掺杂和ago负载的g-C3N4异质结增强光催化水裂解析氢

Materials Today Catalysis Pub Date : 2025-09-01 Epub Date: 2025-07-25 DOI: 10.1016/j.mtcata.2025.100111

Hafiz Suleman Yaseen , Liu Deng , Li Luo , Johnny Muya Chabu , Syed Aamir Hussain , Wei Wang , Chengcheng Zhang , Rongrong Wang , Yifan Jiang , You-Nian Liu

{"title":"La-doped and AgO-loading g-C3N4 heterojunctions for enhanced photocatalytic hydrogen evolution from water splitting","authors":"Hafiz Suleman Yaseen , Liu Deng , Li Luo , Johnny Muya Chabu , Syed Aamir Hussain , Wei Wang , Chengcheng Zhang , Rongrong Wang , Yifan Jiang , You-Nian Liu","doi":"10.1016/j.mtcata.2025.100111","DOIUrl":"10.1016/j.mtcata.2025.100111","url":null,"abstract":"<div><div>Photocatalytic hydrogen evolution through water splitting represents a sustainable approach for green energy generation. Graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>)-based Z-scheme heterostructures have emerged as promising photocatalysts, but their practical applications are fundamentally limited by the persistent challenge of rapid charge recombination at heterointerfaces. To address this critical issue, we develop a novel Z-scheme photocatalyst AgO/La@g-C<sub>3</sub>N<sub>4</sub> (ALCN) through integration of lanthanum-doped g-C<sub>3</sub>N<sub>4</sub> nanosheets with AgO nanoparticles. Comprehensive structural analyses, optical characterization, and electrochemical evaluations confirm the successful construction of p-n heterojunctions with optimized band alignment. The engineered ALCN composite exhibits remarkable electron-hole separation efficiency, achieving an exceptional hydrogen production rate of 16.7 mmol g⁻¹ h⁻¹ under solar light irradiation, which represents a 13-fold, 4-fold, and 2-fold enhancement compared to pristine g-C<sub>3</sub>N<sub>4</sub>, La-doped g-C<sub>3</sub>N<sub>4</sub>, and the composite of La-doped g-C<sub>3</sub>N<sub>4</sub> with Ag<sub>2</sub>O counterparts, respectively. Mechanistic studies reveal that La-doping induces intermediate energy states facilitating charge migration, while the AgO/g-C<sub>3</sub>N<sub>4</sub> heterojunction establishes directional Z-scheme charge transfer pathways. The optimized photocatalyst maintains 92 % activity after 5 cycles, demonstrating superior stability. This work establishes a new paradigm for designing efficient Z-scheme systems through synergistic metal loading and heterojunction engineering.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100111"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722178","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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Recent advances in IB-group metal electrocatalysts for hydrogen conversion and utilization b族金属氢转化与利用电催化剂研究进展

Materials Today Catalysis Pub Date : 2025-09-01 Epub Date: 2025-07-04 DOI: 10.1016/j.mtcata.2025.100109

Wen-Xuan Lv , Kai-Xuan Jiang , Yue-Bao Chen , Peng-Fei Yin , Hui Liu , Xi-Wen Du

{"title":"Recent advances in IB-group metal electrocatalysts for hydrogen conversion and utilization","authors":"Wen-Xuan Lv , Kai-Xuan Jiang , Yue-Bao Chen , Peng-Fei Yin , Hui Liu , Xi-Wen Du","doi":"10.1016/j.mtcata.2025.100109","DOIUrl":"10.1016/j.mtcata.2025.100109","url":null,"abstract":"<div><div>The green production, conversion, and utilization of hydrogen energy rely heavily on key technologies such as water electrolysis and hydrogen fuel cells. As essential components of these technologies, metal catalysts play a crucial role in determining device efficiency and economic viability. Currently, most electrocatalysts still rely on noble metals; however, their high cost and resource scarcity severely limit large-scale application and commercialization. Therefore, the development of cost-effective and high-performance alternatives to noble metal catalysts has become a major research focus. IB-group metals (Cu, Ag) have emerged as promising candidates for electrocatalysis due to their low cost, high electrical conductivity, and excellent corrosion resistance. However, their <em>d</em><sup>10</sup> electronic configuration results in weak adsorption of catalytic intermediates, leading to inherently low catalytic activity. Over the past decade, advancements in synthesis techniques and atomic/electronic structure modulation strategies have enabled the transformation of IB-group metals, particularly Cu and Ag, into highly efficient electrocatalysts for the hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR). This review systematically summarizes recent progress in the synthesis and structural optimization of IB-group metal catalysts, with a particular focus on their applications in water electrolysis and hydrogen fuel cells. By analyzing key factors such as crystal structure and electronic configuration, we elucidate the fundamental mechanisms influencing catalytic performance. Finally, we discuss future perspectives on IB-group metal catalysts in clean energy technologies, highlighting their potential to accelerate the development of hydrogen energy and contribute to global carbon neutrality goals.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100109"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572507","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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Materials Today Catalysis Pub Date : 2025-09-01 Epub Date: 2025-09-17 DOI: 10.1016/S2949-754X(25)00033-X

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Materials Today Catalysis Pub Date : 2025-09-01 Epub Date: 2025-09-17 DOI: 10.1016/S2949-754X(25)00032-8

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Advanced RuO2-based electrocatalysts for oxygen evolution reaction: A perspective from coordination structures 基于ruo2的先进析氧电催化剂：配位结构的视角

Materials Today Catalysis Pub Date : 2025-09-01 Epub Date: 2025-07-11 DOI: 10.1016/j.mtcata.2025.100110

Qian Sun , Jiaxin Zhang , Wei Kong Pang , Bernt Johannessen , Peng Li , Guoqiang Zhao , Huaming Yang

{"title":"Advanced RuO2-based electrocatalysts for oxygen evolution reaction: A perspective from coordination structures","authors":"Qian Sun , Jiaxin Zhang , Wei Kong Pang , Bernt Johannessen , Peng Li , Guoqiang Zhao , Huaming Yang","doi":"10.1016/j.mtcata.2025.100110","DOIUrl":"10.1016/j.mtcata.2025.100110","url":null,"abstract":"<div><div>Proton exchange membrane water electrolysis (PEMWE) is a promising technology for green hydrogen production, but its efficiency is limited by the sluggish oxygen evolution reaction (OER). RuO<sub>2</sub>-based electrocatalysts exhibit superior intrinsic OER activity compared to IrO<sub>2</sub>, yet their practical application is hindered by poor stability due to lattice oxygen overoxidation and Ru overoxidation. Recent advances highlight that modulating the local coordination environment of RuO<sub>2</sub> through doping, strain engineering, and defect control can not only optimize the OER pathways but also regulate the intrinsic activity of active sites, thereby achieving more balanced OER activity and stability. Meanwhile, computational investigations have also revealed deep insights into the catalytic performance of RuO<sub>2</sub> from the perspective of local coordination structures. Therefore, in this review, we start by discussing the OER mechanisms and common structural descriptors of the activity and stability of RuO<sub>2</sub>. Then, we explore the relationship between structural regulation strategies and the OER performance of RuO<sub>2</sub> and analyze how coordination engineering influences catalytic behavior, establishing a designing framework for high-performance catalysts. Finally, we outline key challenges and future directions for RuO<sub>2</sub>-based OER electrocatalysts in PEMWE applications.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100110"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605792","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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Photocatalytic transformation of organic pollutants and remediation strategies of carbon emissions and nitrogen fixation in inland water 内陆水体有机污染物的光催化转化及碳排放固氮修复策略

Materials Today Catalysis Pub Date : 2025-06-01 Epub Date: 2025-05-09 DOI: 10.1016/j.mtcata.2025.100103

Masiha Rahman, Saman Shaheen, Tokeer Ahmad

{"title":"Photocatalytic transformation of organic pollutants and remediation strategies of carbon emissions and nitrogen fixation in inland water","authors":"Masiha Rahman, Saman Shaheen, Tokeer Ahmad","doi":"10.1016/j.mtcata.2025.100103","DOIUrl":"10.1016/j.mtcata.2025.100103","url":null,"abstract":"<div><div>Photocatalysis is an environmentally friendly approach and a propitious avenue for addressing water contamination including toxic chemicals, radioactive materials, and nitrate fertilizer. In the past few years, urbanization and industrialization have affected the water quality, causing various environmental hazards. Inland water ecosystems such as lakes, rivers and wetland not only play a vital role in maintaining biodiversity but also provide important sources of GHGs emissions. Despite their significance, the emission from inland water is poorly quantified. This review systematically reveals the sources of carbon and nitrogen emissions, the efficiency and mechanisms of various photocatalysts in degrading a range of organic pollutants, highlighting their potential to reduce environmental toxins significantly. The state-of-the-art and innovative remediation strategies targeting carbon emissions and N<sub>2</sub> fixation have been thoroughly discussed. By consolidating photocatalytic processes with carbon sequestration and N<sub>2</sub> fixation, the review develops a holistic approach to alleviating water quality and mitigating climate change impacts. Finally, the findings concluded with the role of advanced photocatalytic materials and proffering perspectives in promoting sustainable environmental management and ecological health in inland aquatic systems.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100103"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929593","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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Improved low-temperature CO oxidation using heterogeneous nanofibrous structures decorated with Pd atoms and nanocrystals 用Pd原子和纳米晶体修饰的非均相纳米纤维结构改进低温CO氧化

Materials Today Catalysis Pub Date : 2025-06-01 Epub Date: 2025-03-08 DOI: 10.1016/j.mtcata.2025.100093

M.A. Rodriguez-Olguin , D. Cazac , F. Ruiz-Zepeda , S. Bartling , M. Bosco , H. Atia , R. Eckelt , A. Manzo-Robledo , M. Vandichel , A. Aguirre , J.G.E. Gardeniers , A. Susarrey-Arce

{"title":"Improved low-temperature CO oxidation using heterogeneous nanofibrous structures decorated with Pd atoms and nanocrystals","authors":"M.A. Rodriguez-Olguin , D. Cazac , F. Ruiz-Zepeda , S. Bartling , M. Bosco , H. Atia , R. Eckelt , A. Manzo-Robledo , M. Vandichel , A. Aguirre , J.G.E. Gardeniers , A. Susarrey-Arce","doi":"10.1016/j.mtcata.2025.100093","DOIUrl":"10.1016/j.mtcata.2025.100093","url":null,"abstract":"<div><div>Amorphous alumina shaped as nanofibers forming a non-woven network, functioning as a heterogeneous dispersion for palladium (Pd) atoms and nanocrystals, is unique yet unstudied for low-temperature CO oxidation. This work demonstrates that nanometric-size alumina fibers (ANFs) with a surface area of ⁓230 m<sup>2</sup>/g can host Pd species that remain nearly intact after CO oxidation. The ANFs contain various Pd (Pd-ANFs) loadings, ranging from 1 %wt. (Pd1-ANFs), 3 %wt. (Pd3-ANFs), to 5 %wt. (Pd5-ANFs). Among them, Pd3-ANFs show the highest CO chemisorption. Hence, the chemical environment of the Pd3-ANFs is assessed using NAP-XPS under various CO and O<sub>2</sub> mixtures. NAP-XPS shows the presence of metallic and oxidized Pd species. The results are correlated with DRIFT spectroscopy, which unveils the CO species adsorbed over Pd. Furthermore, a computational-based kinetic model for CO oxidation shows that Pd single atoms start the CO-oxidation, followed by larger Pd crystals during light-off. Our results demonstrate that the Pd-ANFs have higher activity when compared with the Pd alumina nanoparticles (Pd-ANP) counterpart that lacks a fibrous structure, highlighting the benefits of the ANF's structural network in stabilizing atomic and nanometric scale metal catalysts for low-temperature CO oxidation.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100093"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Investigating size-dependent selectivity in benzaldehyde reductive amination via Ni nanoparticles 研究镍纳米颗粒在苯甲醛还原胺化反应中的尺寸依赖性选择性

Materials Today Catalysis Pub Date : 2025-06-01 Epub Date: 2025-04-29 DOI: 10.1016/j.mtcata.2025.100100

Yunong Li , Ching Kit Tommy Wun , Tianxiang Chen , Tsz Woon Benedict Lo

{"title":"Investigating size-dependent selectivity in benzaldehyde reductive amination via Ni nanoparticles","authors":"Yunong Li , Ching Kit Tommy Wun , Tianxiang Chen , Tsz Woon Benedict Lo","doi":"10.1016/j.mtcata.2025.100100","DOIUrl":"10.1016/j.mtcata.2025.100100","url":null,"abstract":"<div><div>Selectivity control is a fundamental focus in catalysis chemistry, as it directly reflects the efficiency and efficacy of catalytic processes. While catalysis often involves intricate and cascade reaction steps using nanoparticle (NP) catalysts, the mechanism behind the size effect of nanoparticles on product selectivity has not been fully explored. We herein prepared a series of Ni-containing zeolitic catalysts in which the Ni NPs are uniformly supported on the mesopores and outer surfaces of H-ZSM-5 zeolites. The dynamic formation of Ni NPs from highly dispersed Ni precursors was monitored using transmission electron microscopy, in-situ X-ray pair distribution function, and in-situ X-ray absorption fine structure analysis. The metal nanoparticle size was carefully controlled between 3.72(5) nm and 11.91(7) by controlling the reduction temperature. We evaluated the catalytic performance of Ni NPs using the reductive amination of benzaldehyde in batch reactors at low temperatures. This reaction inherently favors the formation of a series of products, suffering highly from selectivity issues. Our results revealed a size-dependent behavior in reaction efficiency, with the catalyst achieving the highest catalytic activity (93 % selectivity in primary amine) at a particle size of 5.62(3) nm. This optimal performance is attributed to a balanced interplay between hydrogenation and amination capabilities. These findings highlight the intricate relationship between nanoparticle size and catalytic performance, emphasizing the necessity for precise optimization in catalyst design to enhance selectivity and sustainability in industrial applications.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100100"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895821","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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Materials Today Catalysis Pub Date : 2025-06-01 Epub Date: 2025-06-16 DOI: 10.1016/S2949-754X(25)00021-3

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