Materials Today Catalysis最新文献

{"title":"Ediorial Board","authors":"","doi":"10.1016/S2949-754X(25)00045-6","DOIUrl":"10.1016/S2949-754X(25)00045-6","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"11 ","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145750059","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":"Reactive oxygen species in selective heterogeneous catalytic oxidations","authors":"Laura A. Achola ,&nbsp;Elsa Njeri ,&nbsp;Luisa F. Posada ,&nbsp;Steven L. Suib","doi":"10.1016/j.mtcata.2025.100126","DOIUrl":"10.1016/j.mtcata.2025.100126","url":null,"abstract":"<div><div>Heterogeneous catalysis is essential in industrial chemical processes, particularly selective oxidation reactions. Oxidative reactions are complex due to the occurrence of multiple reaction pathways, kinetic and thermodynamic effects, and the involvement of reactive oxygen species (ROS). ROS, including superoxide radical anions (O₂^{<strong>·</strong>-}), hydrogen peroxide (H₂O₂), hydroxyl radicals (^•OH), and singlet oxygen (¹O₂), can enhance selectivity or lead to overoxidation of reactants. Thus, ROS identification on a catalyst’s surface or under real-time conditions is crucial for determining mechanistic pathways and the key ROS species that contribute to high selectivity for oxidation processes. Tracking these reactive species can be challenging within heterogeneous systems. Most detection methods are hindered by the rapid decay of ROS, the complexity and cost of spin-trapping probes, lack of probe selectivity, and interference from other species in the reaction, which limits real-time ROS monitoring. There remains a need for reliable detection and scavenging methods, further combined with characterization techniques such as EPR, XPS, in situ DRIFTS, and oxygen isotope labeling. Prior review articles on ROS focus on applications in medicine, biological fields, and photocatalysis. This review examines the chemistry of molecular oxygen, generation mechanisms, and the detection of ROS in heterogeneous selective catalytic oxidations and our contribution to the field; we focus on literature published over the last five decades, highlight the specific challenges associated with studying these systems, and provide strategies for overcoming these limitations. Finally, we discuss <em>in situ</em> vs. <em>ex situ</em> ROS probing techniques and demonstrate their importance in dynamic catalytic systems.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"11 ","pages":"Article 100126"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623531","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)00044-4","DOIUrl":"10.1016/S2949-754X(25)00044-4","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"11 ","pages":"Article 100131"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145750051","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":"2025-09-01","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":"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":"2025-09-01","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":"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":"2025-09-01","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}

{"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":"2025-09-01","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}

{"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":"2025-09-01","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}

{"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}