ChemSusChem最新文献_第10页

Efficient and Stable Acidic Oxygen Evolution Based on W₁₈O₄₉ Nanowires Supported IrO_X. 基于W18O49纳米线负载IrOX的高效稳定酸性析氧

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-17 DOI: 10.1002/cssc.202402769

Yao Dai, Kaihang Yue, Yingjie Wan, Peng Zhao, Yongwen Tan, Fuqiang Huang, Ya Yan

{"title":"Efficient and Stable Acidic Oxygen Evolution Based on W18O49 Nanowires Supported IrOX.","authors":"Yao Dai, Kaihang Yue, Yingjie Wan, Peng Zhao, Yongwen Tan, Fuqiang Huang, Ya Yan","doi":"10.1002/cssc.202402769","DOIUrl":"10.1002/cssc.202402769","url":null,"abstract":"Proton exchange membrane water electrolyzer (PEMWE) is considered to be a promising green hydrogen production technology but place high demand on the anodic oxygen-evolving electrocatalysts to withstand the strong oxidizing and acidic reaction condition. Here we report a robust W18O49 nanowire supported IrOX (IrOX-W18O49) catalyst for acidic oxygen evolution reaction (OER) prepared by chemical vapor deposition followed with polyol reduction. The catalyst exhibits excellent electrocatalytic OER performance with an overpotential of 223 mV for a current density of 10 mA cm-2 and a small Tafel slope of 66.4 mV dec-1 in acidic media, superior to most electrocatalysts. More impressively, the assembled three-electrode cell with IrOX-W18O49 as the working electrode exhibits excellent electrocatalytic OER performance and can operate stably at 10 mA cm-2 for 140 h. In-situ spectroscopy characterizations reveal that the IrOX-W18O49 works in a route of lattice oxygen mechanism during OER. The favorable interaction between W18O49 nanowires and the IrOX active species together with the strong Ir-O interaction stabilizes the high-valence Ir and prolongs the service life of the catalyst for OER.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202402769"},"PeriodicalIF":7.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Efficient and Sustainable Electrochemical Demolition of Hard-Metal Scrap with Co-Rich Binder. 富钴粘结剂对硬质金属废料的高效可持续电化学拆除。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-17 DOI: 10.1002/cssc.202402218

Francesco Tavola, Gian Pietro De Gaudenzi, Giulio Bidinotto, Francesco Casamichiela, Andrea Pola, Sandra Tedeschi, Benedetto Bozzini

{"title":"Efficient and Sustainable Electrochemical Demolition of Hard-Metal Scrap with Co-Rich Binder.","authors":"Francesco Tavola, Gian Pietro De Gaudenzi, Giulio Bidinotto, Francesco Casamichiela, Andrea Pola, Sandra Tedeschi, Benedetto Bozzini","doi":"10.1002/cssc.202402218","DOIUrl":"https://doi.org/10.1002/cssc.202402218","url":null,"abstract":"Cobalt and tungsten hold strategic importance in various industries, and fostering their circular economy could lead to cost reduction and a more sustainable use of natural resources. Eco- friendly electrochemical recovering processes are promising alternatives to the state-of-the-art pyrometallurgical approaches, but their productivity is too low for industrial standards. Low demolition rates are caused by hardmetal pseudopassivation phenomena. In previous work, we demonstrated that a pulsed-potential approach, employing a neutral aqueous solution and alternating pseudopassivating film formation with its mechanical removal by oxygen evolution reaction, thus refreshing an active HM surface, is effective in avoiding the corrosion-self-termination for corrosion-resistant grades. This study extends this approach to the most widespread grades, featuring Co-rich binders. This new application required fine-tuning of the operating conditions to adapt them to the target grades. Electrochemical characterization of the psudopassive film growth in this study is centered on cyclic voltammetry and potentiostatic polarization. Corroded hardmetal and detached pseudopassive films were subjected to morphological and compositional analyses with scanning electron microscopy and x-ray fluorescence mapping. We thus demonstrated that optimized pulsed anodic potentiostatic polarization enables efficient demolition of hard metal coupons, combined with separation of Co and W, at high rate and with low energy consumption.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202402218"},"PeriodicalIF":7.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Exploring CO₂ Methanation Using 3D-Printed Carbon Architectures. 利用3d打印碳结构探索二氧化碳甲烷化。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-17 DOI: 10.1002/cssc.202500303

Pauline Blyweert, Ana R Querido, Olivia S G P Soares, Vincent Nicolas, Vanessa Fierro, Manuel F R Pereira, Alain Celzard

引用次数: 0

An Iron-Catalyzed Sustainable Functional Group Transfer Strategy for In-Water Transformation of Organic Sulfides to Sulfoxides by a Hydroxylamine Derived Oxidant. 铁催化的可持续官能团转移策略在水中有机硫化物转化为亚砜羟胺衍生氧化剂。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-16 DOI: 10.1002/cssc.202500032

Sayanti Chatterjee, Arya Singh, Yashdeep Maurya, Akhilesh Sharma, V S Swetha, Mehar Ul Nisa, Vishal Kumar, Puneet Gupta, Kartikay Tyagi

{"title":"An Iron-Catalyzed Sustainable Functional Group Transfer Strategy for In-Water Transformation of Organic Sulfides to Sulfoxides by a Hydroxylamine Derived Oxidant.","authors":"Sayanti Chatterjee, Arya Singh, Yashdeep Maurya, Akhilesh Sharma, V S Swetha, Mehar Ul Nisa, Vishal Kumar, Puneet Gupta, Kartikay Tyagi","doi":"10.1002/cssc.202500032","DOIUrl":"https://doi.org/10.1002/cssc.202500032","url":null,"abstract":"An unprecedented strategy for unlocking a new and efficient functional group transfer protocol has been demonstrated to synthesize a variety of complex organic sulfoxides chemoselectively, starting from organic sulfides. The strategy of this new functional group transfer protocol is based on harnessing the potential of metalloradical-assisted intermolecular functional group transposition or 'InterGroupXfer' to replace highly sensitive and reactive high valent metal intermediates, [M=X] (X = O, NH).This sustainable functional group transfer strategy employs earth abundant iron catalyst and bench-stable and convenient-to-handle hydroxyl amine derived surrogate, operates under mild conditions in water or even under solvent free condition, exhibits broad functional group tolerance, as well as versatility of reaction scale and proceeds without the use of any precious metal catalyst or additional oxidant. A comprehensive electronic and mechanistic investigation, supported by DFT calculations, has been conducted to elucidate the reaction mechanism. The utility of the developed methodology as well as studies of biological activity foster future pathways for exploring uncharted chemical space. The reported work with exceptional synthetic flexibility and operational simplicity aligns well with the prospect of green and sustainable chemistry and is expected to unlock new avenue in the emerging research area of catalytic functional group transfer reactivity.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500032"},"PeriodicalIF":7.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A Scalable Strategy of "Ball-Milling-Assisted Laser Scanning Method" to Achieve Cr₂Ni₃ Catalyst: An Unprecedented Robust Anode for Oxygen Evolution Reaction. 一种可扩展的“球磨辅助激光扫描法”策略来实现Cr2Ni3催化剂：一种前所未有的强大的析氧阳极。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-15 DOI: 10.1002/cssc.202500140

Yingli Ren, Mingyu Su, Shengli Zhu, Zhenduo Cui, Zhaoyang Li, Shuilin Wu, Wence Xu, Zhonghui Gao, Yanqin Liang, Lili Ma, Hui Jiang

{"title":"A Scalable Strategy of \"Ball-Milling-Assisted Laser Scanning Method\" to Achieve Cr2Ni3 Catalyst: An Unprecedented Robust Anode for Oxygen Evolution Reaction.","authors":"Yingli Ren, Mingyu Su, Shengli Zhu, Zhenduo Cui, Zhaoyang Li, Shuilin Wu, Wence Xu, Zhonghui Gao, Yanqin Liang, Lili Ma, Hui Jiang","doi":"10.1002/cssc.202500140","DOIUrl":"10.1002/cssc.202500140","url":null,"abstract":"Industrial water-alkali splitting is facing high energy consumption due to the high overpotential of commercial Ni mesh anode in oxygen evolution reaction (OER) processing. Herein, a simple ball-milling-assisted laser scanning strategy was employed to introduce the hardest Lewis acid chromium (Cr) into the Ni matrix to form Cr2Ni3 catalysts supported by Ni mesh, endowing such NiCr/Ni mesh anode a robust OER performance at a low-cost. It is shown that facilitating the self-adsorption of oxygen species and promoting the leaching of soluble Cr cations aids in reconstructing Ni cations into active (oxy)hydroxide species. This study explores the innovative development of Cr-doped NiCr/Ni mesh catalysts to create porous NiCr/Ni alloys with Cr2Ni3 as the active phase. The optimal Ni0.5Cr0.5-NM electrode demonstrates ultra-low overpotentials of 293 mV and 321 mV at 50 and 100 mA cm-2, respectively, while maintaining excellent stability for over 100 hours at 100 mA cm-2. This work provides insight into the batch fabrication of customized OER anodes for sustainable hydrogen production.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500140"},"PeriodicalIF":7.5,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143633270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Reactor for Photocatalytic Hydrogen Production from Water. 光催化水制氢反应器。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-14 DOI: 10.1002/cssc.202500317

Xin-Yu Meng, Tingwei Wang, Jin-Jin Li, Chih-Chun Ching, Yin-Ning Zhou, Yun-Xiang Pan

引用次数: 0

Vapor deposition assisted in-situ construction of graphitic carbon nitride homojunction capable of enhanced visible-light-driven hydrogen generation. 气相沉积辅助原位构建能够增强可见光驱动制氢的石墨氮化碳同质结。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-14 DOI: 10.1002/cssc.202500361

Peizhi Dong, Huiqing Fan, Lin Lei, Yongbo Fan, Shimiao Tang, Ruizhe Zhang, Zhiyong Liao, Zhuo Zhang, Ning Yang, Zexue Lin, Weijia Wang

{"title":"Vapor deposition assisted in-situ construction of graphitic carbon nitride homojunction capable of enhanced visible-light-driven hydrogen generation.","authors":"Peizhi Dong, Huiqing Fan, Lin Lei, Yongbo Fan, Shimiao Tang, Ruizhe Zhang, Zhiyong Liao, Zhuo Zhang, Ning Yang, Zexue Lin, Weijia Wang","doi":"10.1002/cssc.202500361","DOIUrl":"https://doi.org/10.1002/cssc.202500361","url":null,"abstract":"Graphitic carbon nitride (g-C3N4) has garnered considerable attention in the field of photocatalysis due to its suitable bandgap (~2.7 eV), abundant elemental composition, high chemical stability, and environmentally friendly synthesis process. In this study, a novel g-C3N4 homojunction material with controllable morphology was successfully fabricated via a simple and efficient vapor deposition method. Under visible light irradiation, this material demonstrated exceptional photocatalytic hydrogen evolution performance, achieving a hydrogen production rate of 334 μmol g-1 h-1, approximately 24 times higher than that of conventional bulk g-C3N4. This remarkable enhancement in performance can be attributed to the synergistic effects of several factors, including a significant increase in specific surface area, expanded visible-light absorption range, efficient separation and migration of photogenerated charge carriers, and the coupling effect of optimized band structure and crystal morphology. This study not only provides new insights for further enhancing the photocatalytic performance of CN-based materials but also lays a solid foundation for their practical applications in sustainable energy and environmental remediation.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500361"},"PeriodicalIF":7.5,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Alloying Engineering of Defective Molybdenum Sulfide Basal Planes for Enhanced Borrowing Hydrogen Activity in the Thioetherification of Alcohols. 缺陷硫化钼基面的合金化工程提高醇硫醚化过程中借氢活性。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-13 DOI: 10.1002/cssc.202500343

Miriam Rodenes, Darija Oštrić, Santiago Martín, Patricia Concepción, Avelino Corma, Iván Sorribes

{"title":"Alloying Engineering of Defective Molybdenum Sulfide Basal Planes for Enhanced Borrowing Hydrogen Activity in the Thioetherification of Alcohols.","authors":"Miriam Rodenes, Darija Oštrić, Santiago Martín, Patricia Concepción, Avelino Corma, Iván Sorribes","doi":"10.1002/cssc.202500343","DOIUrl":"10.1002/cssc.202500343","url":null,"abstract":"The borrowing hydrogen thioetherification of alcohols over heterogeneous catalysts has emerged as an attractive and practical synthetic strategy to prepare thioethers from the perspective of green and sustainable chemistry. Developing efficient catalysts is the key to improve this carbon-sulfur (C-S) bond formation process. Herein, a novel catalyst, namely {Mo2.89W0.11S4}n, has been prepared by alloying engineering of its basal planes through an innovative synthetic methodology that makes use of isostructural building entities based on molybdenum and tungsten sulfide molecular complexes with M3S4 (M=Mo, W) cluster cores. Besides excellent activity and reusability, {Mo2.89W0.11S4}n is of broad scope, enabling the conversion of structurally diverse thiols and primary as well as secondary alcohols into thioethers. A set of characterizations, in combination with catalytic results, reveal that the catalytic activity of {Mo2.89W0.11S4}n for this relevant transformation arises from the presence of multiple-type active centers in the defective basal planes of this alloyed catalyst. More specifically, coordinatively unsaturated sulfurs and metal atoms with Lewis basic and Lewis acid properties, respectively, are proposed to be the active sites involved in the borrowing hydrogen mechanism.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500343"},"PeriodicalIF":7.5,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 C-N Coupling: Advances in Urea Synthesis and Opportunities for Alternative Products. 电催化C-N偶联：尿素合成的进展和替代产品的机会。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-13 DOI: 10.1002/cssc.202402566

Parker Ballard-Kyle, Isabel Hsieh, Huiyuan Zhu

引用次数: 0

Non-copper-based Catalysts for CO₂ Electroreduction to Multi-carbon Compounds. 二氧化碳电还原多碳化合物的非铜基催化剂。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-03-12 DOI: 10.1002/cssc.202402755

Zhouhui Chen, Wanfu Zhong, Chunyuan Shi, Weihang Tang, Qinghong Zhang, Ye Wang, Shunji Xie

引用次数: 0