Highly Active Tungsten Oxide Nanoplate Electrocatalysts for the Hydrogen Evolution Reaction in Acidic and Near Neutral Electrolytes.

ABSTRACT: An efficient, cost-effective, and earth-abundant catalyst that could drive the production of hydrogen from water without or with little external energy is the ultimate goal toward hydrogen economy. Herein, nanoplates of tungsten oxide and its hydrates (WO₃·H₂O) as promising electrocatalysts for the hydrogen evolution reaction (HER) are reported. The square-shaped and stacked WO₃·H₂O nanoplates are synthesized at room temperature under air in ethanol only, making it as a promising green synthesis strategy. The repeated electrochemical cyclic voltammetry cycles modified the surface of WO₃·H₂O nanoplates to WO₃ as confirmed by X-ray photoelectron and Auger spectroscopy, which leads to an improved HER activity. Hydrog

SUBMITTER: Nayak AK 

PROVIDER: S-EPMC6645150 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature