Materials Today Catalysis最新文献

{"title":"Electrocatalytic performance in direct ethanol fuel cells: Contributions of monometallic, bimetallic, and trimetallic catalysts","authors":"Pariksha Bishnoi ,&nbsp;Kirti Mishra ,&nbsp;Urvashi Sen ,&nbsp;Samarjeet Singh Siwal","doi":"10.1016/j.mtcata.2025.100124","DOIUrl":"10.1016/j.mtcata.2025.100124","url":null,"abstract":"<div><div>Over the recent past, there has been exponential growth in the advancements of clean energy sources and fuel cell technologies. Fuel cells are the electrochemical devices that are able to convert chemical energy of a fuel into electrical energy. This paper studies the electrocatalytic activity of monometallic, bimetallic, and trimetallic catalysts in direct ethanol fuel cells (DEFCs). Monometallic catalysts, for example, platinum (Pt) and palladium (Pd), along with other transition metals, find application but have complications like poor tolerance to carbon monoxide (CO) and incomplete oxidation of ethanol. Furthermore, bimetallic catalysts, e.g., Pt-Ru and Pt-Sn, have shown significant advancements because of these synergistic enhancements, leading to improved performance, stability, and CO poisoning resistance. Another group of catalysts, trimetallic (e.g., Pt-Ru-Sn), have both high efficiency and long-lasting capabilities, making them stand out as applicable in most DEFC practical scenarios. This research proves the advantage of multi-metallic catalysts in developing the DEFC technology while solving both major factors of catalyst deterioration and their price.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"11 ","pages":"Article 100124"},"PeriodicalIF":0.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145108742","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}

{"title":"Ediorial Board","authors":"","doi":"10.1016/S2949-754X(25)00033-X","DOIUrl":"10.1016/S2949-754X(25)00033-X","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100120"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104419","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}

{"title":"Cover","authors":"","doi":"10.1016/S2949-754X(25)00032-8","DOIUrl":"10.1016/S2949-754X(25)00032-8","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100119"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104418","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}

{"title":"Thin-film approach for scalability and enhancement of solar hydrogen production with CNT integrated Ce-doped-TiO2 composite in direct sunlight","authors":"Preethi Vijayarengan ,&nbsp;Anthony Raja Maria ,&nbsp;K.S. Ashadevi ,&nbsp;Naresh Nalajala ,&nbsp;Chinnakonda S. Gopinath","doi":"10.1016/j.mtcata.2025.100115","DOIUrl":"10.1016/j.mtcata.2025.100115","url":null,"abstract":"<div><div>Solar hydrogen production by photocatalysis has long been considered as an important energy option. Whichever photocatalyst succeeds, methods should be available to scale-up in a most sustainable and cost-effective manner, and the present work addresses this specific issue. In the present study, Ce-doped in the TiO₂ lattice (Ce-TiO₂) and the same integrated with CNT (CNT-Ce-TiO₂; (CCT)) composite was synthesized and characterized. Current study demonstrates the synergistic integration of Ce-TiO₂ as a light absorber and charge generator with CNTs as efficient charge separation at heterojunctions as well as charge transporter in a thin-film configuration (lab-scale (4.7 cm²), bench-scale (500 cm²)). Improved H₂ generation under direct sunlight demonstrated in thin film form, than in particulate suspension, is attributed to efficient light absorption, particularly for electron-hole pair separation and their dispersion to redox sites. Additionally, the role of the binder is highlighted for improving H₂ yield and the sustainability of the thin-film form of photocatalyst. ∼200 mg (1 g) CCT coated over 500 cm² (2500 cm²) photocatalyst produced 21.6 mmol/h (102 mmol/h) H₂ in sunlight. Present results provides a proof of concept that the thin film form of photocatalyst displays, at least 10 times, higher H₂ yield than its powder counterpart, depending on the measurement conditions. A non-linear enhancement in H₂ yield with small and large area thin-film indicates complex underlying factors and highlights the scope for further improvements.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100115"},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144888787","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}

{"title":"Construction of self-supporting heterobimetallic phosphides for oxygen evolution reaction","authors":"Adjapong Linda Akua Agyapomaa ,&nbsp;Chulong Jin ,&nbsp;Qingqing Zhang,&nbsp;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/Ni₂P-Fe₂P@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 (Ni₂P, Fe₂P). NF/Ni₂P-Fe₂P@NC inherits remarkable OER performance with ultralow overpotential of 123 mV at a current density of 10 mA cm⁻² and Tafel slope of 51. 3 mV dec⁻¹ in alkaline electrolyte. The experimental results unravel that the multi-components (Ni₂P, Fe₂P, NC), rich heterogeneous interfaces (Ni₂P/Fe₂P), 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":"2025-08-12","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}

{"title":"Comparative photoelectrochemical study of oligomeric s-heptazines nanomaterials derived from partial thermal decompositions of urea & thiourea precursors","authors":"Anupam Chowdhury ,&nbsp;Dipanwita Majumdar ,&nbsp;Moisilee Dutta ,&nbsp;Swapan Kumar Bhattacharya","doi":"10.1016/j.mtcata.2025.100112","DOIUrl":"10.1016/j.mtcata.2025.100112","url":null,"abstract":"<div><div>Thermal polymerization of urea and thiourea under closed conditions at 370 °C have been independently carried out and the derived samples were subjected to detailed characterization techniques that showed varied chemical compositions as well as distribution of functional groups despite the same C/N atomic ratio. The detailed optical, physicochemical and morphological characterizations from FTIR, RAMAN, XRD, TGA, XPS, solid-state &amp; solution-state NMR, solid state UV–visible absorption, PL, BET, FESEM, TEM and SAED revealed that urea derived U370 sample with 2D flakes-like morphology closely resembles melem-cyanuric acid complex/adduct while thiourea derived T370 sample having flat ribbon-like structure can be intimately related with oligomeric melem (s-heptazines) hydrate respectively. Solution state UV–visible absorption spectroscopy, Zeta potential and Dynamic Light Scattering (DLS) aided size distribution studies were also conducted in aqueous media with varying pH to comprehend the character of chemical functionalities and nature of prevailing interactions in acid, neutral and alkaline electrolytes which were further be correlated with their photoelectrochemical responses. Their comparative electrochemical studies were conducted in aid with CV, GCD and EIS studies both under dark as well as in presence of different and wide range light sources in acid, neutral and basic media correspondingly to design low costing, eco-friendly, smart materials for light-driven supercapacitive devices. Results revealed T370 sample with better photoelectrochemical performance in terms of higher normalized areal capacitance, better rate capacity as well as improved cyclic stability than U370 sample in aqueous alkaline electrolyte. Thus, this communication outlines a novel approach for significantly upgrading the supercapacitive responses of materials using the simple aid of electromagnetic radiation, thereby opening up new roadways in the emerging field of photoelectrochemical charge storage and conversion technology.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100112"},"PeriodicalIF":0.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144738399","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}

{"title":"La-doped and AgO-loading g-C3N4 heterojunctions for enhanced photocatalytic hydrogen evolution from water splitting","authors":"Hafiz Suleman Yaseen ,&nbsp;Liu Deng ,&nbsp;Li Luo ,&nbsp;Johnny Muya Chabu ,&nbsp;Syed Aamir Hussain ,&nbsp;Wei Wang ,&nbsp;Chengcheng Zhang ,&nbsp;Rongrong Wang ,&nbsp;Yifan Jiang ,&nbsp;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-C₃N₄)-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-C₃N₄ (ALCN) through integration of lanthanum-doped g-C₃N₄ 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-C₃N₄, La-doped g-C₃N₄, and the composite of La-doped g-C₃N₄ with Ag₂O counterparts, respectively. Mechanistic studies reveal that La-doping induces intermediate energy states facilitating charge migration, while the AgO/g-C₃N₄ 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":"2025-07-25","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}

{"title":"Advanced RuO2-based electrocatalysts for oxygen evolution reaction: A perspective from coordination structures","authors":"Qian Sun ,&nbsp;Jiaxin Zhang ,&nbsp;Wei Kong Pang ,&nbsp;Bernt Johannessen ,&nbsp;Peng Li ,&nbsp;Guoqiang Zhao ,&nbsp;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). RuO₂-based electrocatalysts exhibit superior intrinsic OER activity compared to IrO₂, 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 RuO₂ 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 RuO₂ 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 RuO₂. Then, we explore the relationship between structural regulation strategies and the OER performance of RuO₂ 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 RuO₂-based OER electrocatalysts in PEMWE applications.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"10 ","pages":"Article 100110"},"PeriodicalIF":0.0,"publicationDate":"2025-07-11","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}

{"title":"Recent advances in IB-group metal electrocatalysts for hydrogen conversion and utilization","authors":"Wen-Xuan Lv ,&nbsp;Kai-Xuan Jiang ,&nbsp;Yue-Bao Chen ,&nbsp;Peng-Fei Yin ,&nbsp;Hui Liu ,&nbsp;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>¹⁰ 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":"2025-07-04","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}

{"title":"Ediorial Board","authors":"","doi":"10.1016/S2949-754X(25)00021-3","DOIUrl":"10.1016/S2949-754X(25)00021-3","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100108"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144296989","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}