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Anchoring zero valence single atoms of nickel and iron on graphdiyne for hydrogen evolution.

ABSTRACT: Electrocatalysis by atomic catalysts is a major focus of chemical and energy conversion effort. Although transition-metal-based bulk electrocatalysts for electrochemical application on energy conversion processes have been reported frequently, anchoring the stable transition-metal atoms (e.g. nickel and iron) still remains a practical challenge. Here we report a strategy for fabrication of ACs comprising only isolated nickel/iron atoms anchored on graphdiyne. Our findings identify the very narrow size distributions of both nickel (1.23 Å) and iron (1.02 Å), typical sizes of single-atom nickel and iron. The precision of this method motivates us to develop a general approach in the field of single-atom transition-metal catalysis. Such atomic catalysts have high catalytic activity and stability for hydrogen evolution reactions.

SUBMITTER: Xue Y

PROVIDER: S-EPMC5899097 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Anchoring zero valence single atoms of nickel and iron on graphdiyne for hydrogen evolution.

Xue Yurui Y Huang Bolong B Yi Yuanping Y Guo Yuan Y Zuo Zicheng Z Li Yongjun Y Jia Zhiyu Z Liu Huibiao H Li Yuliang Y

Nature communications 20180413 1

Electrocatalysis by atomic catalysts is a major focus of chemical and energy conversion effort. Although transition-metal-based bulk electrocatalysts for electrochemical application on energy conversion processes have been reported frequently, anchoring the stable transition-metal atoms (e.g. nickel and iron) still remains a practical challenge. Here we report a strategy for fabrication of ACs comprising only isolated nickel/iron atoms anchored on graphdiyne. Our findings identify the very narro ...[more]

PMID: 29654234

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