Atomically isolated nickel species anchored on graphitized carbon for efficient hydrogen evolution electrocatalysis
By Lili Fan, P. Liu, Xuecheng Yan, Lin Gu, Zhenzhong Yang, H. Yang, Shilun Qiu, X. Yao. Nature Communications, 2016
642 citations recorded by the source corpus.
Hydrogen production through electrochemical process is at the heart of key renewable energy technologies including water splitting and hydrogen fuel cells. Despite tremendous efforts, exploring cheap, efficient and durable electrocatalysts for hydrogen evolution still remains as a great challenge. Here we synthesize a nickel–carbon-based catalyst, from carbonization of metal-organic frameworks, to replace currently best-known platinum-based materials for electrocatalytic hydrogen evolution. This nickel-carbon-based catalyst can be activated to obtain isolated nickel atoms on the graphitic carbon support when applying electrochemical potential, exhibiting highly efficient hydrogen evolution performance with high exchange current density of 1.2 mA cm−2 and impressive durability. This work may enable new opportunities for designing and tuning properties of electrocatalysts at atomic scale for large-scale water electrolysis. There is tremendous ongoing effort in the development of electrocatalysts for hydrogen evolution. Here, the authors report that single nickel atoms dispersed on graphitic supports are formed by carbonization of metal-organic frameworks and that they are highly active hydrogen evolution catalysts.
Subfields: Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/057407c474861132d6b2f994a6c5603a399ebf9d
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In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- Advanced catalysts for sustainable hydrogen generation and storage via hydrogen evolution and carbon dioxide/nitrogen reduction reactions (2018, background): “2 mA cm 2 and the long durability of 25 h [302].”