气候变化领域集成服务门户(CCPortal): Weakening hydrogen adsorption on nickel via interstitial nitrogen doping promotes bifunctional hydrogen electrocatalysis in alkaline solution

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DOI	10.1039/c9ee01743g
	Weakening hydrogen adsorption on nickel via interstitial nitrogen doping promotes bifunctional hydrogen electrocatalysis in alkaline solution
	Wang T.; Wang M.; Yang H.; Xu M.; Zuo C.; Feng K.; Xie M.; Deng J.; Zhong J.; Zhou W.; Cheng T.; Li Y.
发表日期	2019
ISSN	17545692
起始页码	3522
结束页码	3529
卷号	12 期号:12
英文摘要	Ni-Based materials are promising candidates for the electrocatalytic hydrogen oxidation reaction and hydrogen evolution reaction in alkaline solution. However, pure Ni binds hydrogen very strongly. To promote its electrocatalytic activity would require the weakening of its hydrogen binding energy. Here, we demonstrate that interstitial nitrogen doping in Ni3N can greatly promote its electrocatalytic activity. Ni3N nanoparticles are prepared from the controlled nitridation of Ni-based coordination polymer nanosheets. The resultant product exhibits excellent mass activity superior to most existing non-precious-metal-based materials and great CO-tolerance for the hydrogen oxidation reaction, as well as remarkable activity and stability for the hydrogen evolution reaction. Our experimental results are further understood and supported by theoretical simulations showing that the interstitial nitrogen doping significantly decreases the hydrogen binding energy and lowers the activation barrier for water formation and dissociation. © 2019 The Royal Society of Chemistry.
英文关键词	Aluminum nitride; Binding energy; Electrocatalysis; Nickel; Nickel compounds; Nitrogen; Nitrogen compounds; Surface reactions; Activation barriers; Coordination Polymers; Electrocatalytic activity; Hydrogen adsorption; Hydrogen evolution reactions; Hydrogen oxidation reaction; Interstitial nitrogen; Theoretical simulation; Gas adsorption; adsorption; alkalinity; electrochemistry; hydrogeology; nanoparticle; nickel; nitrogen; oxidation; polymer
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189772
作者单位	Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Beijing Key Laboratory of Opto-Electronic Functional Materials and Micro-Nano Devices, Department of Physics, Renmin University of China, Beijing, 100872, China
推荐引用方式 GB/T 7714	Wang T.,Wang M.,Yang H.,et al. Weakening hydrogen adsorption on nickel via interstitial nitrogen doping promotes bifunctional hydrogen electrocatalysis in alkaline solution[J],2019,12(12).
APA	Wang T..,Wang M..,Yang H..,Xu M..,Zuo C..,...&Li Y..(2019).Weakening hydrogen adsorption on nickel via interstitial nitrogen doping promotes bifunctional hydrogen electrocatalysis in alkaline solution.Energy & Environmental Science,12(12).
MLA	Wang T.,et al."Weakening hydrogen adsorption on nickel via interstitial nitrogen doping promotes bifunctional hydrogen electrocatalysis in alkaline solution".Energy & Environmental Science 12.12(2019).