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Constructing low-valent Ni nanoparticles for highly selective CO_(2) reduction

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摘要 The electroreduction of CO_(2)(CO_(2)RR)into value-added chemicals is a sustainable strategy for mitigating global warming and managing the global carbon balance.However,developing an efficient and selective catalyst is still the central challenge.Here,we developed a simple two-step pyrolysis method to confine low-valent Ni-based nanoparticles within nitrogen-doped carbon(Ni-NC).As a result,such Ni-based nanoparticles can effectively reduce CO_(2)to CO,with a maximum CO Faradaic efficiency(FE)of 98%at an overpotential of 0.8 V,as long as good stability.Experimental and the density functional theory(DFT)calculation results reveal that low-valent Ni plays a key role in activity and selectivity enhancement.This study presents a new understanding of Ni-based CO_(2)RR,and provides a simple,scalable approach to the synthesis of low-valent catalysts towards efficient CO_(2)RR.
出处 《Chinese Chemical Letters》 SCIE CAS CSCD 2022年第1期424-427,共4页 中国化学快报(英文版)
基金 the financial support from the Shenzhen Science and Technology Research Grant(No.JCYJ20200109140416788,China) the Chemistry and Chemical Engineering Guangdong Laboratory(No.1922018,China) National Key R&D Program of China(No.2020YFB0704500)。
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