ChemCatChem最新文献_第2页

Pulsed Electrocatalysis: A Potential Strategy for Regulating the Heterogeneous Electrocatalytic Reduction Reaction 脉冲电催化：调控非均相电催化还原反应的一种潜在策略

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-20 DOI: 10.1002/cctc.202500579

Pengwei Cheng, Zhiming Wei, Jia Chai, Yueming Zhai

{"title":"Pulsed Electrocatalysis: A Potential Strategy for Regulating the Heterogeneous Electrocatalytic Reduction Reaction","authors":"Pengwei Cheng, Zhiming Wei, Jia Chai, Yueming Zhai","doi":"10.1002/cctc.202500579","DOIUrl":"https://doi.org/10.1002/cctc.202500579","url":null,"abstract":"Electrocatalytic process plays a crucial role in the research and development of sustainable energy and environmental issues. Efficient electrocatalysis can be achieved by optimizing the catalyst, electrolyte, and electrolyzer under constant potential electrolysis conditions. However, these modulation strategies in catalyst designing and device engineering are usually subject to a complex and laborious process. Fortunately, dynamically tunable pulsed electrocatalysis offers a simple and flexible strategy to improve the activity, selectivity, and stability of electrocatalysts, which provides an opportunity to affect the electrocatalysis process dynamically by utilizing potential control. However, the research on pulsed electrocatalysis is still in its infancy, and its regulatory mechanism exists controversial and problematic research challenges. Hence, it's necessary to comprehensively understand the influence of pulsed electrocatalysis on specific catalytic reactions, so as to provide corresponding theoretical guidance for improving the efficiency of electrocatalysis. Here, we summarize the latest findings based on pulsed electrocatalysis strategies in the field of electrocatalysis. We highlight the process achieved of pulsed electrocatalysis on electrochemical processes in terms of regulation mechanisms and characterization techniques. In conclusion, this review provides valuable insights for a systematic understanding of the role of pulsed electrocatalysis in electrochemical modulation and hopes to stimulate new thinking in future studies.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 14","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Trends and Mechanistic Insights in the Catalytic Hydroboration of Carbonyl Compounds 羰基化合物催化硼氢化反应的最新趋势和机理

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-15 DOI: 10.1002/cctc.202500206

Dr. Subramaniyan Ramkumar, Shivakumar Reddappa, Dr. Sakar Mohan, Dr. K. Pramoda, Dr. Shubhankar Kumar Bose

{"title":"Recent Trends and Mechanistic Insights in the Catalytic Hydroboration of Carbonyl Compounds","authors":"Dr. Subramaniyan Ramkumar, Shivakumar Reddappa, Dr. Sakar Mohan, Dr. K. Pramoda, Dr. Shubhankar Kumar Bose","doi":"10.1002/cctc.202500206","DOIUrl":"https://doi.org/10.1002/cctc.202500206","url":null,"abstract":"The catalytic hydroboration of polarized C═O bond is a powerful and atom-economical method to access organoborane derivatives, which serve as important synthons in organic synthesis. Early developments in catalytic hydroboration of carbonyl compounds were mainly dominated by precious metals. Recently, Earth-abundant transition metals and main group elements have shown a progressive advancement in hydroboration chemistry due to their ready availability and economic advantage. Alongside, metal-free hydroboration method has grown as a powerful strategy supporting the key sustainability concepts, including lower toxicity and ease of operation. In this review, we have highlighted the recent edge-breaking advances toward main group, transition-metal- and inner transition metals-catalyzed, and metal-free hydroboration of carbonyl compounds. In addition, we emphasized the variety of efficient catalytic systems and their underlying mechanism, providing valuable insights into their reactivity. This article will also be helpful to identify the important research problems and suggesting possible avenues for further study. As this field is advancing so rapidly, this review highlights some important advances from 2019 to the end of 2024.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 14","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Defect Engineering in NiAl Mixed-Metal Oxides Derived from Layered Double Hydroxide for Enhanced Photocatalytic Nitrogen Fixation 层状双氢氧化物衍生NiAl混合金属氧化物的缺陷工程研究

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-15 DOI: 10.1002/cctc.202500415

Devanshu Sajwan, Manisha Sharma, Sahil Kumar, Jasbir Dahiya, Bhagyashree Priyadarshini Mishra, Venkata Krishnan

{"title":"Defect Engineering in NiAl Mixed-Metal Oxides Derived from Layered Double Hydroxide for Enhanced Photocatalytic Nitrogen Fixation","authors":"Devanshu Sajwan, Manisha Sharma, Sahil Kumar, Jasbir Dahiya, Bhagyashree Priyadarshini Mishra, Venkata Krishnan","doi":"10.1002/cctc.202500415","DOIUrl":"https://doi.org/10.1002/cctc.202500415","url":null,"abstract":"The development of efficient photocatalysts for overall photocatalytic nitrogen fixation to ammonia (NH3) and nitrates (NO3−) has garnered immense attention, addressing various environmental and agricultural needs. Conventionally, NH3 and NO3− are synthesized by high energy-intensive Haber–Bosch and Ostwald's processes, respectively. Therefore, the production of NH3 and NO3− using photocatalysis is a potential alternative for the conventional approaches. However, contemporary research in this field predominantly overlooks the simultaneous production of NH3 and NO3−. In this context, this work presents the synthesis of defect-rich NiAl mixed-metal oxides (MMO) derived from NiAl layered double hydroxide (LDH) via a facile coprecipitation technique followed by hydrothermal and calcination treatment. The photocatalytic activity was tested to produce NH3 and NO3− in visible light using water as a hydrogen source. It was observed that the MMO catalysts showed higher photocatalytic activity as compared to the LDH catalysts, exhibiting eight times higher NH3 production (C-NAO catalyst) without any sacrificial agent. Based on detailed catalytic investigations, it was inferred that the photocatalytic reaction followed the associative distal mechanism. The current work broadens the scope of using LDH-derived MMO catalysts to establish effective photocatalytic reaction protocols for facile NH3 production, offering a straightforward method for a more sustainable nitrogen economy.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 14","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decoding d-Band Effects: Impact of Diverse Environments on Cobalt's Catalytic Performance in Oxygen Reduction Reaction 解码d波段效应：不同环境对钴在氧还原反应中催化性能的影响

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-15 DOI: 10.1002/cctc.202500437

Fatima Nasim, Muhammad Arif Nadeem

{"title":"Decoding d-Band Effects: Impact of Diverse Environments on Cobalt's Catalytic Performance in Oxygen Reduction Reaction","authors":"Fatima Nasim, Muhammad Arif Nadeem","doi":"10.1002/cctc.202500437","DOIUrl":"https://doi.org/10.1002/cctc.202500437","url":null,"abstract":"The oxygen reduction reaction (ORR) is a pivotal process in energy transformation technologies such as fuel cells and metal–air batteries. Despite their efficiency, the widespread adoption of these technologies is hindered by the high cost and shortage of precious metal catalysts. Cobalt, with its intrinsic catalytic activity, cost-effectiveness, and abundance, has emerged as a promising alternative. This review explores the advancements in cobalt-based catalysts, focusing on the adjustment of their d-band center (εd), a vital factor influencing catalytic activity. By tailoring the electronic structure through strategies such as nitrogen doping, alloying with transition metals, and surface engineering, significant improvements in ORR efficiency and stability have been achieved. Insights from density functional theory (DFT) have been instrumental in elucidating the relationship between the εd and the adsorption/desorption dynamics of oxygen intermediates. This study highlights the synergistic effects of cobalt with other elements, which enhance electron transfer and optimize binding energies, achieving near-ideal catalytic performance. Furthermore, the review features the challenges of translating these materials to practical applications, emphasizing the need for scalable synthesis methods, enhanced durability, and environmentally sustainable practices. These findings establish cobalt-based catalysts as high-performance alternatives to precious metals, paving the way for their integration into next-generation energy systems.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 14","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal Stabilization of Metal-Supported Catalysts: Anchoring Strategies and Catalytic Applications in Carbon Resources Conversion 金属负载催化剂的金属稳定性：锚定策略及其在碳资源转化中的催化应用

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-11 DOI: 10.1002/cctc.202500182

Di Wang, Zijian Wang, Jian Xiong, Dr. Zhihao Yu, Prof. Dr. Xuebin Lu

引用次数: 0

Progress and Challenges in Electrochemical Glycerol Oxidation: The Importance of Benchmark Methods and Protocols 电化学甘油氧化的进展和挑战：基准方法和协议的重要性

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-06 DOI: 10.1002/cctc.202500152

Hanzhi Ye, Silvia Favero, Helen Tyrrell, Kanyapat Plub-in, Anna Hankin, Reshma R Rao, Ifan E. L Stephens, Maria-Magdalena Titirici, Hui Luo

{"title":"Progress and Challenges in Electrochemical Glycerol Oxidation: The Importance of Benchmark Methods and Protocols","authors":"Hanzhi Ye, Silvia Favero, Helen Tyrrell, Kanyapat Plub-in, Anna Hankin, Reshma R Rao, Ifan E. L Stephens, Maria-Magdalena Titirici, Hui Luo","doi":"10.1002/cctc.202500152","DOIUrl":"https://doi.org/10.1002/cctc.202500152","url":null,"abstract":"Electrochemical oxidation of glycerol presents a strategy to utilize the glycerol byproduct from biodiesel production to co-generate valuable liquid products at the anode and green hydrogen at the cathode, with lower energy requirement than conventional water electrolysis, offering both environmental and economic benefits. This review summarizes recent advancements in electrocatalyst development for glycerol electro-oxidation and highlights the challenges posed by its complex reaction mechanisms, including wide product distribution, multiple binding configurations of reaction species, unstable intermediates, and the coexistence of both Faradaic and non-Faradaic pathways, all of which complicate the identification and quantification of glycerol derivatives using chromatographic and spectroscopic techniques. The review emphasizes the need to establish standardized protocols for electrochemical measurements that are scalable and transferable from rotating disk electrodes (RDE) to membrane electrode assemblies (MEA), as well as for product detection and quantification using high-performance liquid chromatography (HPLC). To enable intra-laboratory comparisons, researchers should provide detailed specifications of experimental setups, conditions, and methodologies for evaluating electrochemical activity, catalyst durability, and calibration standards for product quantification via HPLC. Consistency in reporting experimental data, particularly regarding product selectivity, is crucial but often overlooked. Lastly, this paper discusses the potential of applying in situ techniques to understand the reaction mechanisms at the molecular level and to distinguish between Faradaic and non-Faradaic reaction pathways, while addressing the limitations and difficulties of applying these techniques.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 13","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500152","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Cover: Effect of Trimethylamine-N-Oxide (TMAO) and Sorbitol on the Catalytic Activity of Candida boidinii Formate Dehydrogenase (ChemCatChem 11/2025) 三甲胺- n -氧化物（TMAO）和山梨醇对假丝酵母甲酸脱氢酶（ChemCatChem 11/2025）催化活性的影响

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-06 DOI: 10.1002/cctc.202581101

Julio A. Perez-Erviti, Yasser Almeida-Hernández, Joel Mieres-Perez, Nicolas Gajardo-Parra, Roland Winter, Christoph Held, Gabriele Sadowski, Elsa Sanchez-Garcia

引用次数: 0

Cover Feature: Size, Shape, and Composition Control of Metallic Colloidal Nanoparticles for the Design of Heterogeneous Catalysts (ChemCatChem 11/2025) 封面特征：尺寸，形状和组成控制的金属胶体纳米颗粒的多相催化剂的设计（ChemCatChem 11/2025）

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-06 DOI: 10.1002/cctc.202581102

Esteban Gioria, Raoul Naumann d'Alnoncourt, Arne Thomas, Frank Rosowski

引用次数: 0

Electrochemical Transition Metal Hydride Catalysis 电化学过渡金属氢化物催化

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-06 DOI: 10.1002/cctc.202500348

Xinyi Wang, Depeng Duan, Prof. Lu Song, Prof. Niankai Fu

引用次数: 0

Tailored Intermediate Adsorption for Efficient Electrosynthesis of Urea via Co-Reduction of Nitrate and Carbon Dioxide 硝酸和二氧化碳共还原高效电合成尿素的中间吸附

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-05 DOI: 10.1002/cctc.202500277

Dr. Min Zhou, Su Wang, Prof. Dr. Song Yang, Xihong Lu, Prof. Dr. Hu Li

{"title":"Tailored Intermediate Adsorption for Efficient Electrosynthesis of Urea via Co-Reduction of Nitrate and Carbon Dioxide","authors":"Dr. Min Zhou, Su Wang, Prof. Dr. Song Yang, Xihong Lu, Prof. Dr. Hu Li","doi":"10.1002/cctc.202500277","DOIUrl":"https://doi.org/10.1002/cctc.202500277","url":null,"abstract":"Electrocatalytic co-reduction of nitrate (NO3−) and carbon dioxide (CO2) to synthesize urea is expected to be a viable and sustainable replacement for the energy-intensive Haber-Bosch process. The principal hurdles in the synthesis of urea are the inherent inertness of the reactants leading to low coverage of the C─N coupling intermediates, the sluggish kinetics and thermodynamics of the coupling procedure, and the emergence of competing parallel reactions. In this concept, we provide a brief overview of recent advances and involved mechanisms of urea electrosynthesis in terms of tailoring the adsorption behavior of intermediates and reactively coupling intermediates to improve the kinetics and selectivity of C─N coupling. Based on performance data and in situ spectroscopic characterization, the developed strategies focus on enhancing the accessibility of coupling atoms in C/N intermediates while concurrently optimizing active sites. Finally, shortcomings, optimization methods, and opportunities of urea electrosynthesis are summarized with the aim of contributing to the promotion of efficient urea.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 13","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0