Stress-Transfer-Induced In Situ Formation of Ultrathin Nickel Phosphide Nanosheets for Efficient Hydrogen Evolution

Shao-Hai Li; Nan Zhang; Xiuqiang Xie; Rafael Luque; Yi-Jun Xu

doi:10.1002/anie.201806221

Stress-Transfer-Induced In Situ Formation of Ultrathin Nickel Phosphide Nanosheets for Efficient Hydrogen Evolution

Angew Chem Int Ed Engl. 2018 Oct 1;57(40):13082-13085. doi: 10.1002/anie.201806221. Epub 2018 Sep 11.

Authors

Shao-Hai Li^{1

2}, Nan Zhang^{1

2}, Xiuqiang Xie^{1

2}, Rafael Luque^{3

4}, Yi-Jun Xu^{1

2}

Affiliations

¹ State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.
² College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, P. R. China.
³ Departamento de Quimica Organica, Universidad de Cordoba, Edificio Marie Curie, E-14014, Cordoba, Spain.
⁴ Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya str., 117198, Moscow, Russia.

PMID: 30088851
DOI: 10.1002/anie.201806221

Abstract

Ultrathin two-dimensional (2D) nanostructures have attracted increasing research interest for energy storage and conversion. However, tackling the key problem of lattice mismatch inducing the instability of ulreathin nanostructures during phase transformations is still a critical challenge. Herein, we describe a facile and scalable strategy for the growth of ultrathin nickel phosphide (Ni₂ P) nanosheets (NSs) with exposed (001) facets. We show that single-layer functionalized graphene with residual oxygen-containing groups and a large lateral size contributes to reducing the lattice strain during phosphorization. The resulting nanostructure exhibits remarkable hydrogen evolution activity and good stability under alkaline conditions.

Keywords: graphene; hydrogen evolution; nanosheets; nickel; stress transfer.

Abstract

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