Post-oxidation of all-organic electrocatalysts to promote O-O coupling in water oxidation

doi:10.1038/s41467-025-59771-6

	Post-oxidation of all-organic electrocatalysts to promote O-O coupling in water oxidation
	He, Chun-Ting 1; Yu, Li-Hong 1; Liu, Haiming2 ; Wang, Qing 2; Ye, Zi-Ming 3; Zhang, Jia 1; Wang, Li-Dong 1; He, Mei-Qian 1; Zhang, Xue-Feng 1; Du, Hong-Gang 1; Lu, Zi-Wei 1; Yang, Jian 1; Huang, Hai-Hua 1; Chen, Xiao-Ming 4
	2025-05-12
发表期刊	NATURE COMMUNICATIONS (IF:14.7[JCR-2023],16.1[5-Year])
EISSN	2041-1723
卷号	16 期号:1
发表状态	已发表
DOI	10.1038/s41467-025-59771-6
摘要	Covalently bonded metal-free electrocatalysts exhibit significant potential for sustainable energy technologies, yet their performances remain unsatisfactory compared with metal-based catalysts. Herein, we propose an all-organic electrocatalyst, MEC-2, that conforms to the infrequent oxide path mechanism in alkaline oxygen evolution reaction through post-oxidation modification. MEC-2 achieves an intrinsic overpotential of 257.7 +/- 0.6 mV at 10 mAcm-2 and possesses durability with negligible degradation over 100,000 CV cycles or 250 h of operation at 1.0 Acm-2, being comparable to the advanced metal-based OER electrocatalysts. The 18O-labeled operando characterization and theoretical calculations unveil that post-oxidation modification enhances the electron affinity to OH intermediates, and adjusts the adsorption configuration and proximity distance of O intermediates, thereby promoting direct O-O radical coupling. In this work, we show a fresh perspective for understanding the role of non-metallic elements/functional groups in electrocatalysis, and to a certain extent, narrows the gap between all-organic electrocatalysts and metal-based electrocatalysts.
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收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (National Science Foundation of China)["22375079","22161021","22465019","21890380"] ; National Natural Science Foundation of China["20224ACB214001","20242BAB26033","20232BAB203032"] ; Jiangxi Province Natural Science Foundation[0224/09039001]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001486810300019
出版者	NATURE PORTFOLIO
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/533670
专题	物质科学与技术学院物质科学与技术学院_PI研究组_刘海铭组
通讯作者	He, Chun-Ting; Zhang, Jia
作者单位	1.Jiangxi Normal Univ, Coll Chem & Mat, Key Lab Fluorine & Silicon Energy Mat & Chem, Minist Educ, Nanchang 330022, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 3.Fujian Normal Univ, Coll Chem & Mat Sci, Fujian Key Lab Polymer Mat, Fuzhou 350007, Peoples R China 4.Sun Yat Sen Univ, Sch Chem, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Peoples R China
推荐引用方式 GB/T 7714	He, Chun-Ting,Yu, Li-Hong,Liu, Haiming,et al. Post-oxidation of all-organic electrocatalysts to promote O-O coupling in water oxidation[J]. NATURE COMMUNICATIONS,2025,16(1).
APA	He, Chun-Ting.,Yu, Li-Hong.,Liu, Haiming.,Wang, Qing.,Ye, Zi-Ming.,...&Chen, Xiao-Ming.(2025).Post-oxidation of all-organic electrocatalysts to promote O-O coupling in water oxidation.NATURE COMMUNICATIONS,16(1).
MLA	He, Chun-Ting,et al."Post-oxidation of all-organic electrocatalysts to promote O-O coupling in water oxidation".NATURE COMMUNICATIONS 16.1(2025).