Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 7, Issue 18, Pages 15747-15754Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b03967
Keywords
IrRh; Bifunctional electrocatalysts; Hydrogen evolution reaction; Oxygen evolution reaction; Overall water splitting
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Funding
- National Natural Science Foundation of China [21601154, 21776255, 21701141]
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The exploration of bifunctional electrocatalysts featuring high activity and excellent durability for overall water splitting is of significance for producing high-purity hydrogen from water. Here, we report the facile preparation of bimetallic IrRh nanosheet assemblies (IrRh NAs) by a simple one-pot solution chemical method. Benefiting from the electronic structure effect of bimetallic composition and unique nanoarchitectures with abundant catalytically active sites and mass diffusion pathways, the as-constructed IrRh NAs can efficiently drive both the hydrogen and oxygen evolution reactions in alkaline conditions. Moreover, the two-electrode water splitting system composed of bifunctional IrRh NAs as both cathodic and anodic catalysts could achieve 10 mA cm(-2) with a low cell voltage of 1.57 V.
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