Chinese Journal of Catalysis最新文献

{"title":"Neighboring effect in PtCuSnCo alloy catalysts for precisely regulating nitrate adsorption and deoxidation to achieve 100% faradaic efficiency in ammonia synthesis","authors":"Yun Ling ,&nbsp;Hui Su ,&nbsp;Ru-Yu Zhou ,&nbsp;Qingyun Feng ,&nbsp;Xuan Zheng ,&nbsp;Jing Tang ,&nbsp;Yi Li ,&nbsp;Maosheng Zhang ,&nbsp;Qingxiang Wang ,&nbsp;Jian-Feng Li","doi":"10.1016/S1872-2067(25)64705-X","DOIUrl":"10.1016/S1872-2067(25)64705-X","url":null,"abstract":"<div><div>The electrochemical reduction of nitrate (NO₃⁻) to ammonia (NH₃) (NO₃RR) represents an environmentally sustainable strategy for NH₃ production while concurrently addressing water pollution challenges. Nevertheless, the intrinsic complexity of this multi-step reaction severely constrains both the selectivity and efficiency of NO₃RR. Copper-based electrocatalysts have been extensively investigated for NO₃RR but often suffer from nitrite (NO₂⁻) accumulation, which stems from insufficient NO₃⁻ adsorption strength. This limitation often leads to rapid catalyst deactivation, hindered hydrogenation pathways, and reduced overall efficiency. Herein, we report a one-step green chemical reduction method to synthesize PtCuSnCo quarternary alloy nanoparticles with homogeneously distributed elements. Under practical NO₃⁻ concentrations, the optimized catalyst exhibited an impressive Faradaic efficiency approaching 100% and an outstanding selectivity of 95.6 ± 2.9%. Mechanistic insights uncovered that SnCo sites robustly facilitated NO₃⁻ adsorption, complemented by the proficiency of PtCu sites in NO₃⁻ reduction. The synergistic spatial neighborhood effect between SnCo and PtCu sites efficiently stabilizes NO₃⁻ deoxygenation and suppresses NO₂⁻ accumulation. This tandem architecture achieves a finely tuned balance between adsorption strength and deoxygenation kinetics, enabling highly selective and efficient NO₃RR. Our findings emphasize the indispensable role of engineered multi-metallic catalysts in overcoming persistent challenges of NO₃RR, paving the way for advanced NH₃ synthesis and environmental remediation.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 347-357"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring charge migration dynamics in S-scheme photocatalytic systems","authors":"Meng Li ,&nbsp;Xuanhua Li ,&nbsp;Jahan B. Ghasemi","doi":"10.1016/S1872-2067(25)64709-7","DOIUrl":"10.1016/S1872-2067(25)64709-7","url":null,"abstract":"","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 12-15"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Competitions between hydrogen evolution reaction and oxygen reduction reaction on an Au surface","authors":"Yao Yao ,&nbsp;Juping Xu ,&nbsp;Minhua Shao","doi":"10.1016/S1872-2067(25)64650-X","DOIUrl":"10.1016/S1872-2067(25)64650-X","url":null,"abstract":"<div><div>Hydrogen evolution reaction (HER) is unavoidable in many electrochemical synthesis systems, such as CO₂ reduction, N₂ reduction, and H₂O₂ synthesis. It makes those electrochemical reactions with multiple electron-proton transfers more complex when determining kinetics and mass transfer information. Understanding how HER competes with other electrochemical reduction reactions is crucial for both fundamental studies and system performance improvements. In this study, we employed the oxygen reduction reaction (ORR) as a model reaction to investigate HER competition on a polycrystalline-Au surface, using a rotating ring and disk electrode. It’s proved that water molecules serve as the proton source for ORR in alkaline, neutral, and even acidic electrolytes, and a 4-electron process can be achieved when the overpotential is sufficiently high. The competition from H⁺ reduction becomes noticeable at the H⁺ concentration higher than 2 mmol L^–1 and intensifies as the H⁺ concentration increases. Based on the electrochemical results, we obtained an equivalent circuit diagram for the ORR system with competition from the H⁺ reduction reaction, showing that these reactions occur in parallel and compete with each other. Electrochemical impedance spectroscopy measurements further confirm this argument. Additionally, we discover that the contribution of H⁺ mass transfer to the total H⁺ reduction current is significant and comparable to the kinetic current. We believe this work will deepen our understanding of HER and its competition in electrochemical reduction systems.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 271-278"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing mesh-like defective molybdenum carbides for ethanol synthesis via syngas-derived DMO hydrogenation","authors":"Yannan Sun ,&nbsp;Jiafeng Yu ,&nbsp;Xingtao Sun ,&nbsp;Yu Han ,&nbsp;Qingjie Ge ,&nbsp;Jian Sun","doi":"10.1016/S1872-2067(25)64713-9","DOIUrl":"10.1016/S1872-2067(25)64713-9","url":null,"abstract":"<div><div>Molybdenum carbide has shown great potential in various hydrogenation reactions, and serves as a primary active species for synthesis of ethanol from dimethyl oxalate hydrogenation process which is a crucial step in the efficient utilization of coal resources. In this study, a molybdenum carbide catalyst with a three-dimensional mesh-like hollow structure and lattice defects was carefully designed. The MoO₃ precursor with abundant oxygen vacancies and defects was prepared by flame spray pyrolysis, and a structural modifier, Cu, was introduced by sputtering. The Cu deposited by sputtering affected the carburization and phase evolution processes. A three-dimensional mesh-like hollow structure composed of defective molybdenum carbide is formed, with the <em>β</em>-Mo₂C exhibiting lattice distortions and defects. This defective <em>β</em>-Mo₂C exhibits high reactivity, and facilitates the C=O hydrogenation process, showing a high reactivity of 83.1% yield in the hydrogenation of dimethyl oxalate. This work provides a new approach to the design and application of molybdenum carbide catalysts.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 234-241"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isomers of organic structure directing agent influence the Al distribution of AEI zeolite and catalytic performance in methane oxidation","authors":"Peipei Xiao ,&nbsp;Yong Wang ,&nbsp;Xiaomin Tang ,&nbsp;Anmin Zheng ,&nbsp;Trees De Baerdemaeker ,&nbsp;Andrei-Nicolae Parvulescu ,&nbsp;Dirk De Vos ,&nbsp;Xiangju Meng ,&nbsp;Feng-Shou Xiao ,&nbsp;Hermann Gies ,&nbsp;Toshiyuki Yokoi","doi":"10.1016/S1872-2067(25)64702-4","DOIUrl":"10.1016/S1872-2067(25)64702-4","url":null,"abstract":"<div><div>Small pore zeolites have been reported to show salient performance in methane oxidation reactions. Among them, the synthesis of AEI zeolite is highly dependent on organic structure-directing agents (OSDA). The isomer OSDAs have been informed to influence the crystallization rate and spatial Al distribution on the crystalline particle of AEI zeolite. Still, its impact on the framework Al distribution of the AEI zeolite is not well known, which significantly impacts the subsequent loading of metal cations and thus active sites available for catalytic reactions. We herein report the impact of the isomer OSDA for synthesizing AEI-type aluminosilicate zeolite on the Al distribution. The discrepancy of Al distribution in as-synthesized AEI zeolites directed by trans and <em>cis</em>-rich OSDAs was identified by ²⁷Al MQMAS/MAS NMR and density functional theory (DFT). The <em>cis</em>-OSDA gave a higher intensity of bands at 60–63 ppm as the shoulder of tetracoordinated Al. The <em>trans</em>-rich OSDA guided to a slightly higher Al content and a slightly higher proportion of Al pairs than the <em>cis</em>-one. The DFT calculation indicated that <em>trans</em>- and <em>cis-OSDAs</em> preferentially led to the Al atoms at the T3 and T1 sites, respectively. The exchanged Cu/AEI zeolites with varied Cu content were applied in the direct and continuous oxidation of methane reaction and exhibited different activities. Given the results, we report here the methane activation properties of the Cu/AEI zeolites and how the isomer identity of the OSDA impacts the activity of Cu/AEI in methane oxidation to methanol. This work highlighted that isomer OSDA influenced the Al distribution as well as crystallization kinetics and gave an insight into the design of the OSDA for zeolite synthesis.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 252-260"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CO2-free hydrogen production from solar-driven photothermal catalytic decomposition of methane","authors":"Yihan Zheng ,&nbsp;Yuxin Wang ,&nbsp;Ruitao Li ,&nbsp;Haoran Yang ,&nbsp;Yuanyuan Dai ,&nbsp;Qiang Niu ,&nbsp;Tiejun Lin ,&nbsp;Kun Gong ,&nbsp;Liangshu Zhong","doi":"10.1016/S1872-2067(25)64703-6","DOIUrl":"10.1016/S1872-2067(25)64703-6","url":null,"abstract":"<div><div>CO₂-free H₂ refers to H₂ production process without CO₂ emission, which is a promising clean energy in the future. Catalytic decomposition of methane (CDM) is a competitive technology to produce CO₂-free H₂ with large-scale. However, CDM reaction is highly endothermic and is kinetically and thermodynamically unfavorable, which typically requires a harsh reaction temperature above 800 °C. In this work, solar-driven photothermal catalytic decomposition of methane was firstly introduced to produce CO₂-free H₂ relying solely on solar energy as the driving force. A high H₂ yield of 204.6 mmol g^–1 h^–1 was observed over Ni-CeO₂ interface under photothermal conditions, along with above 87% reduction in the apparent activation energy (11.2 <em>vs.</em> 87.3 kJ mol^–1) when comparing with the traditional thermal catalysis. Further studies suggested that Ni/CeO₂ catalyst enhanced optical absorption in visible-infrared region to ensure the heat energy for methane decomposition. The generated electrons and holes participated in the redox process of photo-driven CDM reaction with enhanced separation ability of hot carriers excited by ultraviolet-visible light, which lowered activation energy and improved the photothermal catalytic activity. This work provides a promising photothermal catalytic strategy to produce CO₂-free H₂ under mild conditions.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 289-299"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Copper-catalyzed carbonylative Suzuki-Miyaura coupling of un-activated alkyl bromides with aryl boronates","authors":"Jiajun Zhang ,&nbsp;Xiao-Feng Wu","doi":"10.1016/S1872-2067(25)64700-0","DOIUrl":"10.1016/S1872-2067(25)64700-0","url":null,"abstract":"<div><div>Herein, we present a copper-catalyzed carbonylative cross-coupling of unactivated alkyl bromides with aryl boronates under CO atmosphere which enabling the efficient synthesis of C(<em>sp</em>³)-C(<em>sp</em>²) ketones with extensive functional group compatibility. This strategy represents a significant advance in copper-catalyzed carbonylation involving alkyl bromides and C(<em>sp</em>²)-nucleophiles. The protocol addresses key challenges commonly encountered in the coupling of C(<em>sp</em>³)-alkyl halides with aryl boron reagents, such as sluggish oxidative addition of alkyl halides, competing Suzuki-Miyaura cross-coupling, undesired dehalogenation and so on. Distinguished by its broad substrate scope and high functional group tolerance, this approach offers a robust and versatile platform for the streamlined synthesis of alkyl aryl ketones.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 146-152"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bimetallic oxide catalysts for CO2 hydrogenation to methanol: Recent advances and challenges","authors":"Jian-Feng Wu ,&nbsp;Li-Ye Liang ,&nbsp;Zheng Che ,&nbsp;Yu-Ting Miao ,&nbsp;Lingjun Chou","doi":"10.1016/S1872-2067(25)64689-4","DOIUrl":"10.1016/S1872-2067(25)64689-4","url":null,"abstract":"<div><div>Against the backdrop of global energy and environmental crises, the technology of CO₂ hydrogenation to produce methanol is garnering widespread attention as an innovative carbon capture and utilization solution. Bimetallic oxide catalysts have emerged as the most promising research subject in the field due to their exceptional catalytic performance and stability. The performance of bimetallic oxide catalysts is influenced by multiple factors, including the selection of carrier materials, the addition of promoters, and the synthesis process. Different types of bimetallic oxide catalysts exhibit significant differences in microstructure, surface active sites, and electronic structure, which directly determine the yield and selectivity of methanol. Although bimetallic oxide catalysts offer significant advantages over traditional copper-based catalysts, they still encounter challenges related to activity and cost. In order to enhance catalyst performance, future investigations must delve into microstructure control, surface modification, and reaction kinetics.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 62-78"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrosynthesis of value-added chemicals: Challenges from laboratory research to industrial application","authors":"Li-Li Zhang,&nbsp;Zhen Zhou","doi":"10.1016/S1872-2067(25)64708-5","DOIUrl":"10.1016/S1872-2067(25)64708-5","url":null,"abstract":"<div><div>Electrochemical synthesis of value-added chemicals represents a promising approach to address multidisciplinary demands. This technology establishes direct pathways for electricity-to-chemical conversion while significantly reducing the carbon footprint of chemical manufacturing. It simultaneously optimizes chemical energy storage and grid management, offering sustainable solutions for renewable energy utilization and overcoming geographical constraints in energy distribution. As a critical nexus between renewable energy and green chemistry, electrochemical synthesis serves dual roles in energy transformation and chemical production, emerging as a vital component in developing carbon-neutral circular economies. Focusing on key small molecules (H₂O, CO₂, N₂, O₂), this comment examines fundamental scientific challenges and practical barriers in electrocatalytic conversion processes, bridging laboratory innovations with industrial-scale implementation.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 1-7"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Schottky junction coupling with metal size effect for the enhancement of photocatalytic nitrate reduction","authors":"Xuemeng Sun ,&nbsp;Jianan Liu ,&nbsp;Qi Li ,&nbsp;Cheng Wang ,&nbsp;Baojiang Jiang","doi":"10.1016/S1872-2067(24)60280-9","DOIUrl":"10.1016/S1872-2067(24)60280-9","url":null,"abstract":"<div><div>Nitrate pollution poses a significant environmental challenge, and photocatalytic nitrate reduction has garnered considerable attention due to its efficiency and environmental advantages. Among these, the development of Schottky junctions shows considerable potential for practical applications. However, the impact of metal nanoparticle size within Schottky junctions on photocatalytic nitrate reduction remains largely unexplored. In this study, we propose a novel method to modulate metal nanoparticle size within Schottky junctions by controlling light intensity during the photodeposition process. Smaller Au nanoparticles were found to enhance electron accumulation at active sites by promoting charge transfer from COF to Au, thereby improving internal electron transport. Additionally, the Schottky barrier effectively suppressed reverse electron transfer while enhancing NO₃^– adsorption and activation. The Au₂-COF exhibited remarkable nitrate reduction performance, achieving an ammonia yield of 382.48 μmol g^–1 h^–1, 5.7 times higher than that of pure COF. This work provides novel theoretical and practical insights into using controlled light intensity to regulate metal nanoparticle size within Schottky junctions, thereby enhancing photocatalytic nitrate reduction.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"73 ","pages":"Pages 358-367"},"PeriodicalIF":15.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}