ChemCatChem最新文献_第6页

Cover Feature: Identifying Active Centers of a Ring-Shaped, Industrial Vanadyl Pyrophosphate Catalyst for Maleic Anhydride Production (ChemCatChem 13/2025) 封面专题：环状工业焦磷酸钒基马来酸酐催化剂活性中心的鉴定（ChemCatChem 13/2025）

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-11 DOI: 10.1002/cctc.70149

G. Mestl, S. Böcklein, F. Wolf, A. Beck, C.J. Kaul, A. Myachin, K. Golder, L. Artiglia, J. A. van Bokhoven, J. Wintterlin

引用次数: 0

Front Cover: Impact of Lewis Acid Sites on the Catalyst Lifetime for Methanol-to-Hydrocarbons Over Mg-Dealuminated BEA Zeolite (ChemCatChem 13/2025) 封面：Lewis酸位点对mg脱铝BEA沸石上甲醇制烃催化剂寿命的影响（ChemCatChem 13/2025）

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-11 DOI: 10.1002/cctc.70150

Juan Carlos Navarro de Miguel, Teng Li, José Nuno Almeida, Javier Ruiz-Martínez

引用次数: 0

Facilitating Electrochemical Ammonia Production Using an Exfoliated Sr3FeCoO6.72/TiO2 Electrocatalyst: Improved Activity and Charge Transfer Mechanism 剥离Sr3FeCoO6.72/TiO2电催化剂促进电化学制氨：改善活性和电荷转移机制

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500737

Jishu Pramanik, Dipendu Sarkar, Pravin G. Ingole, Jayanta Mukhopadhyay, Srabanti Ghosh

{"title":"Facilitating Electrochemical Ammonia Production Using an Exfoliated Sr3FeCoO6.72/TiO2 Electrocatalyst: Improved Activity and Charge Transfer Mechanism","authors":"Jishu Pramanik, Dipendu Sarkar, Pravin G. Ingole, Jayanta Mukhopadhyay, Srabanti Ghosh","doi":"10.1002/cctc.202500737","DOIUrl":"10.1002/cctc.202500737","url":null,"abstract":"Ammonia plays a pivotal role as both an industrial and a cornerstone of modern agriculture. However, due to the energy-intensive nature of the conventional Haber–Bosch process and its significant CO2 emissions, the electrochemical nitrogen reduction reaction driven by renewable energy under ambient conditions has emerged as a promising sustainable alternative. However, its practical implementation remains challenged by the high activation barrier of the N≡N triple bond and the competing hydrogen evolution reaction (HER). To address these limitations, the development of efficient, earth-abundant electrocatalysts is imperative. In this study, we introduce Sr3FeCoO6.72 (SFC), as a novel nitrogen reduction reaction (NRR) electrocatalyst. Surface hydroxylation of SFC via probe sonication (ESFC) has been employed to generate hydroxyl groups (─OH) and oxygen vacancies, thereby enhancing nitrogen adsorption and facilitating proton-coupled electron transfer. Further, TiO2 has been incorporated into the ESFC matrix, with 5 wt% and 10 wt% TiO2 loadings. The engineered ESFC─TiO2 promoted interfacial charge transfer and increased the accessibility of active sites. The optimized TESFC10 composite exhibited an ammonia yield rate of 12.8 µg h⁻¹ mgcat⁻¹ and Faradaic efficiency of 1.1%. These results demonstrate that rationally designing catalysts can foster synergistic interactions between perovskites and semiconductors, enabling efficient and stable electrochemical synthesis of NH3.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999140","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

Electrocatalytic Glucose Upgrading by Sulfonated Carbon for Sustainable Manufacturing 可持续制造用磺化碳电催化葡萄糖升级

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500190

Andrew Carkner, Caio Furukawa, Alaleh Esfandiari, Ali Seifitokaldani, Jan Kopyscinski

{"title":"Electrocatalytic Glucose Upgrading by Sulfonated Carbon for Sustainable Manufacturing","authors":"Andrew Carkner, Caio Furukawa, Alaleh Esfandiari, Ali Seifitokaldani, Jan Kopyscinski","doi":"10.1002/cctc.202500190","DOIUrl":"10.1002/cctc.202500190","url":null,"abstract":"In a sustainable economy, manufacturing is based on renewable raw materials like biomass instead of nonrenewable ones like petroleum. This work is a step toward that goal: we studied the transformation of glucose into industrial raw materials through electro-oxidation with sulfonated carbon catalyst. Sulfonated carbon has been used as a thermocatalyst for glucose conversion, but until now it has not been used as an electrocatalyst. We identified nine products (oxalic acid, gluconic acid, tartaric acid, maleic acid, glycolic acid, arabinose, formic acid, acetic acid, and 5-hydroxymethylfurfural), whereas glucose electrocatalysis yields that were published by others report five products or less. The optimal conditions in our experiments are a sulfonated carbon catalyst at + 1.5 V versus Ag/AgCl of applied potential and 2 h of oxidation time in 0.5 M K2CO3 electrolyte. At that condition, the product yields are 16.3% for formic acid, 5.8% for acetic acid, 4.9% for glycolic acid, 4.6% for 5-hydroxymethylfurfural, 1.6% for oxalic acid, 1.5% for tartaric acid, 1.4% for arabinose, and 1.1% for gluconic acid, for a total of 37.2% for the identified products. The next step is to explore whether sulfonated carbon electro-oxidation can convert cellulose (a polymer of glucose) into those identified products.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999138","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

Mo-Modified Zirconium Phosphate Solid Acid Catalysts for Sustainable Biodiesel Production from Low-Value Acidic Oils 钼改性磷酸锆固体酸催化剂在低价值酸性油脂可持续生产生物柴油中的应用

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500840

Qiaofei Zhang, Yuanyuan Hou, Yiming Zhang, Wenlei Xie, Jiangbo Li, Lihong Guo, Hongjuan Bai

{"title":"Mo-Modified Zirconium Phosphate Solid Acid Catalysts for Sustainable Biodiesel Production from Low-Value Acidic Oils","authors":"Qiaofei Zhang, Yuanyuan Hou, Yiming Zhang, Wenlei Xie, Jiangbo Li, Lihong Guo, Hongjuan Bai","doi":"10.1002/cctc.202500840","DOIUrl":"10.1002/cctc.202500840","url":null,"abstract":"To develop robust solid acid catalysts for the simultaneous transesterification and esterification of low-value oils into biodiesel, a Mo-modified zirconium phosphate (Mo/ZrP) catalyst was prepared via the intercalation of Mo precursors into layered ZrP using an impregnation method. N2 adsorption-desorption, NH3-TPD, and Py-FTIR analyses indicated that the 40%Mo/ZrP catalyst possesses a high specific surface area, hierarchically porous structures, and strong acidic properties. Such catalyst demonstrates outstanding performance, achieving 97% oil conversion under the optimal reaction conditions. Furthermore, the catalyst shows not only high resistance to free fatty acid (FFA) and water, but good reusability, maintaining oil conversion of >85% after five reuse cycles. This performance meets the requirements for biodiesel production from low-quality oil feedstocks containing moisture and FFA. As evidenced by XRD, UV–vis-DRS, and H2-TPR results, the intercalation of Mo species can induce strong interactions between the layered ZrP and Mo, enhancing catalytic stability by preventing the leaching of acidic Mo species. Additionally, the synergistic effect between Brønsted and Lewis acid sites contributes to excellent co-catalysis ability for simultaneous transesterification and esterification in acidic oil conversion.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999141","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

Designing Fe(II)NNN Pincer Complexes for Base-Free Hydrogen Production from Methanol 设计用于甲醇无碱制氢的Fe(II)NNN钳形配合物

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500528

Damanpreet Kaur, Muhammed Anjad, Vidya Avasare

{"title":"Designing Fe(II)NNN Pincer Complexes for Base-Free Hydrogen Production from Methanol","authors":"Damanpreet Kaur, Muhammed Anjad, Vidya Avasare","doi":"10.1002/cctc.202500528","DOIUrl":"10.1002/cctc.202500528","url":null,"abstract":"Methanol dehydrogenation using earth-abundant catalysts in the absence of any additives presents a promising route for green hydrogen production in fuel cell applications. This study investigates the catalytic performance of three Fe(II)NNN pincer complexes through density functional theory calculations. The turnover frequency analysis, based on the computed free energy activation barriers, reveals that the 1c Fe(II)NNN pincer complex exhibits better catalytic activity in comparison to 1a and 1b Fe(II)NNN pincer complexes. These trends are consistent with electronic structure analyses, including condensed Fukui functions, HOMO-LUMO gap evaluations, and distortion-interaction analysis, which collectively provide insights into the key electronic and structural features enhancing the catalytic performance. Notably, the study indicates that the reaction pathway remains energetically accessible in the absence of an external base, which has great implications for designing base-free catalytic systems. Overall, this study offers critical structure–activity relationship, paving the way for the rational design of next-generation, sustainable catalysts for green hydrogen production from methanol.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999142","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

Copper Photoredox-Catalyzed Allylation of Imines with Allylic Bromides 铜光氧化催化亚胺与烯丙基溴的烯丙化反应

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500743

Oliver Rafn Dan, Prof. Dr. Robert Madsen

{"title":"Copper Photoredox-Catalyzed Allylation of Imines with Allylic Bromides","authors":"Oliver Rafn Dan, Prof. Dr. Robert Madsen","doi":"10.1002/cctc.202500743","DOIUrl":"10.1002/cctc.202500743","url":null,"abstract":"A copper photocatalyzed procedure has been developed for the allylation of imines with allylic bromides by using the heteroleptic complex [Cu(neocuproine)(DPEphos)]PF6 as the photocatalyst. The transformation takes place in the presence of N,N-diisopropylethylamine as a sacrificial reducing agent and does not require stoichiometric metal reagents or precious transition metal catalysts. The reaction can be performed with a range of N-benzylidene anilines with different substituents on the benzylidene moiety. It can be extended to N-benzhydrylidene aniline, but no conversion occurs with other ketimines or N-benzylidene benzenesulfonamide. Besides allylic bromides, the alkylation can also be carried out with benzyl bromide. Mechanistic experiments indicated that the imine is not reduced to the radical anion during the transformation. Thus, a mechanism is proposed where N,N-diisopropylethylamine is oxidized to form an α-aminoalkyl radical, which reacts with allyl bromide through a halogen-atom transfer to generate the allyl radical. The latter then adds to the imine to form an N-centered radical, which is reduced to the product homoallylamine.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500743","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998647","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

Energy-Saving Dehydration of Primary Alcohol Under the Formation of Alkenes via a Bifunctional Clay Catalyst 双功能粘土催化剂催化烯烃生成伯醇的节能脱水研究

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500325

Margherita Cavallo, Adil Allahverdiyev, Melodj Dosa, Oscar Kelly, Valentina Crocellà, Francesca Bonino, Harald Gröger

{"title":"Energy-Saving Dehydration of Primary Alcohol Under the Formation of Alkenes via a Bifunctional Clay Catalyst","authors":"Margherita Cavallo, Adil Allahverdiyev, Melodj Dosa, Oscar Kelly, Valentina Crocellà, Francesca Bonino, Harald Gröger","doi":"10.1002/cctc.202500325","DOIUrl":"10.1002/cctc.202500325","url":null,"abstract":"A commercial acid-leached bentonite (FULCAT®-22 F) catalyzed the dehydration of a range of alcohols efficiently under energy-saving conditions. Dehydration of a primary alcohol such as 1-hexanol took place in the 150–180 °C temperature range with a yield of 52%. This unexpected high catalytic activity was then studied by deeply characterizing the clay catalyst using both fundamental and advanced characterization methods. In agreement with VT-XRD results, by increasing the temperature, BET and PSD analysis evidenced a decrease in SSA (passing from 207 m2 g−1 at 180 °C to 175 m2 g−1 at 400 °C) and slight modification in the micropores present in the material (0.055 and 0.0039 cm3 g−1 at 180 °C and 400 °C, respectively). EDX showed that Fe, Mg, and K are the most abundant metals present in the structure. A deep spectroscopic analysis, with different basic molecular probes (CO, CD3CN, Py, and NH3), revealed, by increasing the temperature, a decrease in Brønsted acid sites and an increase in Lewis acid sites. We hypothesized that the presence of these acidic sites is a key factor contributing to the observed high reaction yield of this clay-type catalyst.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500325","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998648","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

Deciphering the Electrocatalytic Potential of Ni-Metal–Organic Framework: A Synergistic Approach to Electrocatalysis and Theoretical Analysis 解读ni -金属-有机骨架的电催化电位：电催化的协同方法与理论分析

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500796

Debojyoti Kundu, Sanjukta Zamindar, Sandip Kumar Tudu, Sunanda Maji, Abhijit Hazra, Pravat Ghorai, Subinoy Samanta, Dr. Naresh Chandra Murmu, Dr. Priyabrata Banerjee

{"title":"Deciphering the Electrocatalytic Potential of Ni-Metal–Organic Framework: A Synergistic Approach to Electrocatalysis and Theoretical Analysis","authors":"Debojyoti Kundu, Sanjukta Zamindar, Sandip Kumar Tudu, Sunanda Maji, Abhijit Hazra, Pravat Ghorai, Subinoy Samanta, Dr. Naresh Chandra Murmu, Dr. Priyabrata Banerjee","doi":"10.1002/cctc.202500796","DOIUrl":"10.1002/cctc.202500796","url":null,"abstract":"Hydrogen stands at the forefront of next-generation clean energy solutions. Specifically, electrochemical water splitting represents a cutting-edge, environmentally benign approach for sustainable green hydrogen generation. The development of next-generation highly efficient electrocatalysts with high efficiency and durability is pivotal to overcome the intrinsic kinetic limitations of both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Contextually, metal–organic frameworks (MOFs), owing to their ultrahigh surface area, tuneable nanostructures, and exceptional porosity, have emerged as a versatile class of materials for designing advanced bifunctional electrocatalysts. Herein, a nickel-metal complex (NMC) and a nickel-metal–organic framework (NMF) was rationally synthesized. Electrochemical analyses revealed that the NMF exhibited superior bifunctional activity, with low overpotentials of 144 mV for HER and 347 mV for OER at the current density of 10 mA cm−2 in alkaline media. Remarkably, the NMF||NMF catalyst delivered a low overall water splitting cell voltage of 1.647 V at 10 mA cm−2, along with outstanding long-term stability. Comprehensive experimental and in silico insights confirm that NMF dramatically lowers the energy barrier for hydrogen adsorption. These findings highlight the NMF as a state-of-the-art electrocatalyst, underscoring its potential to enable next-generation, advanced water electrolysis techniques for green hydrogen production.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998984","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

CO2 Methanation Of Co/CeO2 Prepared by Wetness Impregnation of Co on Flame-Synthesized CeO2 火焰湿浸渍Co/CeO2制备Co/CeO2的CO2甲烷化研究

IF 3.9 3区化学

ChemCatChem Pub Date : 2025-07-10 DOI: 10.1002/cctc.202500679

Angelina Evtushkova, Jason M.J.J. Heinrichs, Nikolay Kosinov, Emiel J.M. Hensen

{"title":"CO2 Methanation Of Co/CeO2 Prepared by Wetness Impregnation of Co on Flame-Synthesized CeO2","authors":"Angelina Evtushkova, Jason M.J.J. Heinrichs, Nikolay Kosinov, Emiel J.M. Hensen","doi":"10.1002/cctc.202500679","DOIUrl":"10.1002/cctc.202500679","url":null,"abstract":"A set of Co/CeO2 catalysts with varying Co loading was prepared by wet impregnation of Co onto flame-synthesized CeO2 and tested in CO2 methanation. At low Co loading (2.5 mol.%), Co existed as Co2+ ions strongly interacting with CeO2, which remained unreduced at 300 °C. This population of highly dispersed Co2+ (∼2.5 mol.%) was constant across all catalysts. Higher Co loadings (5 and 10 mol.%) led to segregated Co3O4 nanoparticles (∼2–2.5 nm), which partially reduced to metallic Co nanoparticles (2.5 – 3 nm) at 300 °C. At low Co content, the impregnated catalysts mainly produced CO at a low CO2 conversion, while catalysts ≥ 5 mol% Co favored CH₄ formation with minor CO and C₂H₆ by-products. Under CO hydrogenation, these samples showed high selectivity toward olefins and oxygenates (86%) and low CH₄ selectivity. All catalysts experienced deactivation during CO and CO₂ hydrogenation, attributed to carbon deposition on Co nanoparticles. The highly dispersed Co2⁺ and small Co clusters were more resistant to deactivation and selective for CO production. Oxidative regeneration effectively removed carbon deposits and restored initial activity. These results highlight the influence of Co dispersion and particle size on product selectivity and catalyst stability during CO₂ hydrogenation.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"17 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999126","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