Journal article

Constructing Atomic Heterometallic Sites in Ultrathin Nickel-Incorporated Cobalt Phosphide Nanosheets via a Boron-Assisted Strategy for Highly Efficient Water Splitting

Yufei Zhao, Jinqiang Zhang, Yuhan Xie, Bing Sun, Junjie Jiang, Wen-Jie Jiang, Shibo Xi, Hui Ying Yang, Kang Yan, Shijian Wang, Xin Guo, Peng Li, Zhaojun Han, Xunyu Lu, Hao Liu, Guoxiu Wang

NANO LETTERS | AMER CHEMICAL SOC | Published : 2021

Abstract

Identification of active sites for highly efficient catalysts at the atomic scale for water splitting is still a great challenge. Herein, we fabricate ultrathin nickel-incorporated cobalt phosphide porous nanosheets (Ni-CoP) featuring an atomic heterometallic site (NiCo16-xP6) via a boron-assisted method. The presence of boron induces a release-and-oxidation mechanism, resulting in the gradual exfoliation of hydroxide nanosheets. After a subsequent phosphorization process, the resultant Ni-CoP nanosheets are implanted with unsaturated atomic heterometallic NiCo16-xP6 sites (with Co vacancies) for alkaline hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The optimized Ni..

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University of Melbourne Researchers