Exploiting Antisite Defects in FeWN<sub>2</sub> Nanosheets for Enol Electro-oxidation Coupled with H<sub>2</sub> Evolution at a Large Current Density

doi:10.1002/anie.202500678

IMR OpenIR

	Exploiting Antisite Defects in FeWN₂ Nanosheets for Enol Electro-oxidation Coupled with H₂ Evolution at a Large Current Density
	Chen, Zheng-Jie 1,2; Shao, Qiting 2; Wu, Jiajing 3; Zheng, Jian 2; Bao, Shida 1; Zhang, Lili 2; Zhang, Tao 2; Lan, Xuexia 2; Sun, Yuanmiao 1,2; Wang, Dawei 1,2; Peng, Jing 1,2; Cheng, Hui-Ming 1,2,4
通讯作者	Peng, Jing(jing.peng@siat.ac.cn) ; Cheng, Hui-Ming(hm.cheng@siat.ac.cn)
	2025-03-16
发表期刊	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
页码	10
摘要	Hydrogen production from biomass electro-oxidation offers a promising alternative to water electrolysis by lowering the anodic oxidation barrier and producing valuable chemicals. However, current biomass electro-oxidation systems have difficulties in achieving an industrial-scale current density due to the difficulty in cleaving high-energy C & horbar;H and O & horbar;H bonds. Here, we report a ternary layer nitride FeWN2 electrocatalyst with abundant antisite defects (ASDs), which significantly improves its electrocatalytic performance for ascorbic acid (AA) oxidation. The catalyst works at a remarkable current density of 2.5 A cm-2 at 0.69 V (vs RHE) and achieves 4 A cm-2 at 1.12 V in a two-electrode electrolyzer at 60 degrees C with 100% Faraday efficiency for H2 production. Theoretical calculations reveal that W atoms near antipodal Fe sites replenish the electron density of Fe, maintaining moderate Fe-DHA adsorption strength induced by ASDs that achieve superior catalytic efficiency for AA-to-DHA conversion This study provides new insight for developing high-performance organic oxidation catalysts with ASDs.
关键词	Antisite defects Ascorbic acid Biomass electro-oxidation Current density Two-dimensional materials
资助者	National Natural Science Foundation of China ; Shenzhen Basic Research Project ; Science and Technology Foundation of Shenzhen ; Guang Dong Basic and Applied Basic Research Foundation
DOI	10.1002/anie.202500678
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; Shenzhen Basic Research Project[JCYJ20200109144616617] ; Science and Technology Foundation of Shenzhen[JCYJ20220530154404010] ; Science and Technology Foundation of Shenzhen[JCYJ20230807140900001] ; Guang Dong Basic and Applied Basic Research Foundation[2023B1515020102] ; Guang Dong Basic and Applied Basic Research Foundation[2022A1515110408] ; [22275205] ; [52403381] ; [22205148]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:001445634900001
出版者	WILEY-V C H VERLAG GMBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/192017
专题	中国科学院金属研究所
通讯作者	Peng, Jing; Cheng, Hui-Ming
作者单位	1.Shenzhen Univ Adv Technol, Fac Mat Sci & Energy Engn, Shenzhen 518107, Peoples R China 2.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China 3.Shenzhen Inst Informat Technol, Inst Informat Technol, Shenzhen 518172, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zheng-Jie,Shao, Qiting,Wu, Jiajing,et al. Exploiting Antisite Defects in FeWN₂ Nanosheets for Enol Electro-oxidation Coupled with H₂ Evolution at a Large Current Density[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2025:10.
APA	Chen, Zheng-Jie.,Shao, Qiting.,Wu, Jiajing.,Zheng, Jian.,Bao, Shida.,...&Cheng, Hui-Ming.(2025).Exploiting Antisite Defects in FeWN₂ Nanosheets for Enol Electro-oxidation Coupled with H₂ Evolution at a Large Current Density.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,10.
MLA	Chen, Zheng-Jie,et al."Exploiting Antisite Defects in FeWN₂ Nanosheets for Enol Electro-oxidation Coupled with H₂ Evolution at a Large Current Density".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2025):10.