High-Index-Faceted Ni₃S₂ Branch Arrays as Bifunctional Electrocatalysts for Efficient Water Splitting.

ABSTRACT: For efficient electrolysis of water for hydrogen generation or other value-added chemicals, it is highly relevant to develop low-temperature synthesis of low-cost and high-efficiency metal sulfide electrocatalysts on a large scale. Herein, we construct a new core-branch array and binder-free electrode by growing Ni₃S₂ nanoflake branches on an atomic-layer-deposited (ALD) TiO₂ skeleton. Through induced growth on the ALD-TiO₂ backbone, cross-linked Ni₃S₂ nanoflake branches with exposed {[Formula: see text]} high-index facets are uniformly anchored to the preformed TiO₂ core forming an integrated electrocatalyst. Such a core-branch array structure possesses large active surface area, uniform porous structure, and ric

SUBMITTER: Deng S 

PROVIDER: S-EPMC7770978 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature