1. WO3 Nanoarray: An Efficient Electrochemical Oxygen Evolution Catalyst Electrode Operating in Alkaline Solution
- Author
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Xiang Ren, Hui Wang, Jingquan Liu, Zhiang Liu, Min Ma, Ruixiang Ge, Abdullah M. Asiri, Xuqiang Ji, and Xuping Sun
- Subjects
Oxygen evolution ,chemistry.chemical_element ,02 engineering and technology ,Overpotential ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,0104 chemical sciences ,Catalysis ,Inorganic Chemistry ,chemistry ,Chemical engineering ,Electrode ,Hydrothermal synthesis ,Physical and Theoretical Chemistry ,0210 nano-technology ,Current density ,Carbon - Abstract
It is fascinating to design and synthesize high-efficiency and noble-metal-free alkaline oxygen evolution reaction (OER) electrocatalysts. In this Communication, we describe the one-step hydrothermal synthesis of a WO3 nanoarray directly grown on conductive carbon cloth (WO3/CC) for efficient water oxidation in 1.0 M KOH. As a monolithically integrated array catalyst, WO3/CC exhibits superior OER activity demanding overpotential as low as 280 mV to afford a benchmarking catalytic current density of 10 mA cm-2. It is worth noting that WO3/CC also possesses strong electrochemical durability with 95% Faradaic yields.
- Published
- 2017
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