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CaMoO4 nanosheet arrays for efficient and durable water oxidation electrocatalysis under alkaline conditions
Ying Gou1, Qin Liu, Xifeng Shi
1College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, China. hujianming@siom.ac.cn.
Abstract:
It is highly desirable to design and develop earth-abundant electrocatalysts for efficient and durable oxygen evolution reaction (OER) under alkaline conditions. In this communication, we demonstrate the development of CaMoO4 nanosheet arrays on nickel foam (CaMoO4/NF) as a durable high-performance non-noble-metal electrocatalyst for the OER. CaMoO4/NF shows high catalytic activity and needs an overpotential of only 345 mV to attain a geometrical catalytic current density of 50 mA cm-2 in 1.0 M KOH. Notably, it also shows high long-term electrochemical durability for at least 25 h.
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