ChemCatChem最新文献_第3页

Mapping Selective Oxidations of Unspecific Peroxygenases 定位非特异性过氧酶的选择性氧化

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-05 DOI: 10.1002/cctc.202500082

Dominik Homann, Pascal Püllmann, Martin J. Weissenborn

引用次数: 0

Sustainable Synthesis of 2,5-Dimethylfuran (DMF): A Next-Generation Biofuel 2,5-二甲基呋喃（DMF）的可持续合成：新一代生物燃料

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-05 DOI: 10.1002/cctc.202500563

Dr. Debarati Chakraborty, Prof. Asim Bhaumik

{"title":"Sustainable Synthesis of 2,5-Dimethylfuran (DMF): A Next-Generation Biofuel","authors":"Dr. Debarati Chakraborty, Prof. Asim Bhaumik","doi":"10.1002/cctc.202500563","DOIUrl":"https://doi.org/10.1002/cctc.202500563","url":null,"abstract":"Continuous depletion of underground fossil fuel resource imposes a serious concern towards the advancement of our civilization and earth's total energy reserves. Thus, extensive research work has been directed towards the biofuel synthesis, which can be produced from renewable biomass-based feedstock and can considerably substitute the fossil fuel-based present energy infrastructure. First-generation biofuels are made from sugar, starch, oilseed crops, and animal fats. Among them, bioethanol is the most widely used biofuel since 1970. The primary goal of sustainable development of second-generation biofuel from biomass consists of the residual non-food parts of crops (stems, leaves, and husks) that are left behind after extraction of food crop. In this context, 2,5-dimethylfuran (DMF) emerges as an excellent second-generation liquid biofuel with ideal fuel properties like high octane number, high boiling point (92–94 °C) and low water solubility (0.26%). Looking at the immense potential of DMF as a biofuel, several approaches are undertaken for producing DMF from renewable bioresources. In this review, we have highlighted major advancements made in the catalyst design and processes for the bulk-scale synthesis of DMF from different biomass-derived organics. Future scopes for the DMF-based energy technologies are discussed considering their sustainability, environmental impact, and the economy of the processes.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 14","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663763","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

First Row Transition Metals in Olefin Metathesis: The Role of Iron and Manganese 第一排过渡金属在烯烃分解中的作用：铁和锰

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-05 DOI: 10.1002/cctc.202500570

Artur Brotons Rufes, Juan Pablo Martínez, Nicolas Joly, Sylvain Gaillard, Jean Luc Renaud, Sergio Posada Pérez, Albert Poater

{"title":"First Row Transition Metals in Olefin Metathesis: The Role of Iron and Manganese","authors":"Artur Brotons Rufes, Juan Pablo Martínez, Nicolas Joly, Sylvain Gaillard, Jean Luc Renaud, Sergio Posada Pérez, Albert Poater","doi":"10.1002/cctc.202500570","DOIUrl":"https://doi.org/10.1002/cctc.202500570","url":null,"abstract":"Olefin metathesis has traditionally been dominated by molybdenum and ruthenium-based catalysts, but the pursuit of sustainable and earth-abundant alternatives has driven interest in first-row transition metals particularly iron. While iron is an attractive candidate due to its abundance, low toxicity, and cost-effectiveness, significant challenges hinder its successful implementation in metathesis reactions. This review examines the electronic and structural properties of iron that contribute to its catalytic limitations, including high-spin configurations, weak metal-alkylidene interactions, and a pronounced tendency toward cyclopropanation. Computational and experimental efforts to overcome these obstacles are discussed, focusing on ligand design strategies and mechanistic insights. Additionally, the potential of manganese as an alternative to iron is explored. This work underscores the complexities of first-row transition metal catalysts in olefin metathesis and highlights future directions for achieving practical, efficient iron-based systems. Future research should focus on refining ligand architectures to stabilize key intermediates, leveraging computational insights to predict reactivity trends, and further investigating the role of metal oxidation states in metathesis activity. While the transition to first-row transition metals remains a challenge, ongoing advancements continue to push the boundaries of sustainable catalysis, bringing the dream of practical iron- or manganese-based olefin metathesis closer to reality.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 13","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500570","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606419","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

Corrigendum to “Targeted Topological Routine Regulation of RuNiOx Precursors for Excellent Alkaline Overall Water Splitting” “RuNiOx前体的定向拓扑常规调节以实现良好的碱性整体水分解”的勘误表

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-06-05 DOI: 10.1002/cctc.202500837

{"title":"Corrigendum to “Targeted Topological Routine Regulation of RuNiOx Precursors for Excellent Alkaline Overall Water Splitting”","authors":"","doi":"10.1002/cctc.202500837","DOIUrl":"https://doi.org/10.1002/cctc.202500837","url":null,"abstract":"Z. Cai, M. Yang, X. Xu, X. Bu, C. Xiao, Y. Yang, D. Yin, Y. Zhang, W. Gao, J. C. Ho, X. Wang, ChemCatChem. \u0000https://doi.org/10.1002/cctc.202401664In the originally published version of this article, the affiliation and contact information for the first author, Ziyan Cai, were incomplete.The correct author information should be:Ziyan Cai[a,b], Minghao Yang[c], Xiaoke Xu[a], Xiuming Bu[a],*, Chuqian Xiao[a], Yikai Yang[a], Di Yin[d], Yuxuan Zhang[d], Wei Gao[e], Johnny C. Ho[d],*, and Xianying Wang[a],*[a]CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200,050, China. E-mail: [email protected], [email protected][b]Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100,049, China[c]School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330,031, China[d]Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong 999 077, China. E-mail: [email protected][e]State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710,072, ChinaThe authors apologize for this oversight. This correction does not affect the results or conclusions of the article.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 13","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500837","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606434","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

Electrocatalytic Activity of Post Nb-Doped 2D MoSe2 TMD Toward Highly Effective H2 Evolution Reaction 铌掺杂后二维MoSe2 TMD对高效析氢反应的电催化活性

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-05-31 DOI: 10.1002/cctc.202500157

Vikash Kumar, Himani Joshi, Naveen Sharma, Srimanta Pakhira

{"title":"Electrocatalytic Activity of Post Nb-Doped 2D MoSe2 TMD Toward Highly Effective H2 Evolution Reaction","authors":"Vikash Kumar, Himani Joshi, Naveen Sharma, Srimanta Pakhira","doi":"10.1002/cctc.202500157","DOIUrl":"https://doi.org/10.1002/cctc.202500157","url":null,"abstract":"Designing highly efficient electrocatalysts for various chemical reactions is an important research area in advanced science and technology. The electrocatalyst is essential for the H2 evolution reaction (HER) in order to efficiently lower the reaction energy barriers and produce hydrogen. To date, platinum (Pt)-based catalysts have shown the best performance toward HER due to the optimum hydrogen adsorption energy. However, the expensive, low abundance, and scarcity of Pt-based catalysts limit their commercialization. Therefore, it is necessary to find out precious Pt-free electrocatalysts with low potential reaction barriers. 2D transition metal dichalcogenides (TMDs) have proven to be suitable electrocatalysts for HER. In the present study, we deployed the hybrid DFT method to compute the electrocatalytic performance and evaluate the electronic properties of the 2D monolayer Nb-MoSe2 material for H2 evolution. To investigate the electrocatalysis of the subject material, we have computationally designed a nonperiodic molecular cluster model system Nb1Mo9Se21 which illustrates both the Mo-/Nb-edges (10<math></math>0) and Se-edges (<math></math>010) of the 2D monolayer Nb-MoSe2. The reaction barriers for H*-migration, Heyrovsky, and Tafel transition states (TSs) are 20.63 kcal mol−1, 6.64 kcal mol−1, and 8.91 kcal mol−1, respectively, computed by using the polarizable continuum (PCM) solvation method. The present research demonstrates that the 2D monolayer Nb-MoSe2 follows the Volmer–Heyrovsky reaction mechanism during the HER. The low reaction barrier, high turnover frequency (TOF), and low Tafel slope during the hydrogen formation confirm that the 2D monolayer Nb-MoSe2 proves to be a good electrocatalyst for the HER.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 14","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663810","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

Advances in Mechanochemical C─H Functionalization: A Comparative Study with Solvent-Based Approaches 机械化学C─H功能化研究进展：与溶剂基方法的比较研究

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-05-31 DOI: 10.1002/cctc.202500457

Nanditha Kattukudiyil Narayanan, Michael Schnürch

引用次数: 0

Advances and Prospects in Palladium-Based Electrocatalysts for Oxygen Reduction Reaction in Alkaline Environments 碱性环境下氧还原反应钯基电催化剂的研究进展与展望

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-05-27 DOI: 10.1002/cctc.202500401

Lipipuspa Sahoo, Komalpreet Kaur, Reeya Garg, Ujjal K. Gautam

{"title":"Advances and Prospects in Palladium-Based Electrocatalysts for Oxygen Reduction Reaction in Alkaline Environments","authors":"Lipipuspa Sahoo, Komalpreet Kaur, Reeya Garg, Ujjal K. Gautam","doi":"10.1002/cctc.202500401","DOIUrl":"https://doi.org/10.1002/cctc.202500401","url":null,"abstract":"Developing platinum-free electrocatalysts for the oxygen reduction reaction (ORR) is essential for advancing fuel cell technology due to the scarcity and high cost of platinum. Palladium-based electrocatalysts have emerged as promising alternatives, particularly in anion-exchange membrane fuel cells (AEMFCs), which offer advantages such as enhanced durability and reduced carbon corrosion compared to proton-exchange membrane fuel cells (PEMFCs). This review discusses the benefits of AEMFCs over PEMFCs by focusing on ORR mechanisms and operational challenges. We then comprehensively summarize recent advancements in Pd-based electrocatalysts for ORR in alkaline media, emphasizing how optimized nanostructure morphology, alloying with other metals, or utilizing ordered Pd materials and advanced catalyst-supports improve catalytic performance. The role of nonmetal dopants and innovative synthesis strategies in improving activity and stability is also discussed. Despite advances, the long-term stability of Pd-based electrocatalysts remains a critical challenge due to multiple factors. We discuss advanced approaches to overcome these issues. Finally, we provided a concise outlook and potential solutions for addressing these challenges toward achieving the DOE-USA targets and future research directions for utilizing the use of Pd-based ORR electrocatalysts. This review highlights the transformative potential of Pd-based electrocatalysts and the need for continued research to achieve sustainable fuel cells.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 13","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606424","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

Selective Oxidation of Benzyl and Allyl Alcohols to Carbonyl Compounds or Acids Mediated by Iron Photocatalysts 铁光催化剂催化苯和烯丙醇选择性氧化羰基化合物或酸

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-05-27 DOI: 10.1002/cctc.202500611

Dong Xing, Xue Peng, Yatian Chen, Zhenju Jiang, Wei Li, Jiujun Chen, Yong Xiang, Zhouyu Wang, Qiao Song

引用次数: 0

Recent Advances in the Understanding of Lattice Oxygen Participation in Oxygen Evolution Reaction Involving Perovskite Oxide Electrocatalysts 钙钛矿电催化剂析氧反应中晶格氧参与的研究进展

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-05-27 DOI: 10.1002/cctc.202500535

Dr. Sujan Sen, Prof. Tapas Kumar Mandal

引用次数: 0

Gas-Phase Activation-Driven Interface Modulation of Pt-Based Catalysts for Selective and Stable Propane Dehydrogenation 气相活化驱动pt基催化剂的界面调制用于选择性和稳定的丙烷脱氢

IF 3.8 3区化学

ChemCatChem Pub Date : 2025-05-26 DOI: 10.1002/cctc.202500582

Xiaonan Wang, Jun Li, Haoyu Yan, Sen Yao, Dong Li, Peifeng Ye, Yuhan Jiang, Bo Jiang, Xiao Zhang

{"title":"Gas-Phase Activation-Driven Interface Modulation of Pt-Based Catalysts for Selective and Stable Propane Dehydrogenation","authors":"Xiaonan Wang, Jun Li, Haoyu Yan, Sen Yao, Dong Li, Peifeng Ye, Yuhan Jiang, Bo Jiang, Xiao Zhang","doi":"10.1002/cctc.202500582","DOIUrl":"https://doi.org/10.1002/cctc.202500582","url":null,"abstract":"Propane dehydrogenation (PDH) is a key industrial process for on-demand propylene production, yet catalyst deactivation due to coke formation and metal sintering remains a critical challenge. In this work, we introduce a novel activation strategy that simultaneously modulates metal-support interactions (MSI) and acidity in Pt-based catalysts through a sequential CH4/H2 followed by pure H₂ pretreatment. This tailored approach enhances the electronic density of Pt nanoparticles and the distribution of acid sites, rationally tuning MSI to achieve a synergistic enhancement in activity, selectivity, and durability. As a result, the optimized catalyst exhibits exceptional PDH activity, achieving a 59.7 mmol·gcat⁻1·h⁻1 propylene formation rate with 94.1% selectivity and an extended operational lifetime. The findings provide additional understanding of how activation atmospheres influence catalyst structure and reactivity, contributing to the ongoing development of efficient and stable PDH catalysts.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 14","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663776","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