催化作用
析氧
基质(水族馆)
产量(工程)
化学工程
材料科学
电镀(地质)
电催化剂
氧气
电化学
无机化学
化学
冶金
物理化学
电极
有机化学
海洋学
地球物理学
工程类
地质学
作者
Thao Hoang,Andrew A. Gewirth
标识
DOI:10.1021/acscatal.5b02365
摘要
Electrodeposition of Ni or NiFe films exhibiting fractal-like behavior from plating baths containing an inhibitor, such as 3,5-diamino-1,2,4-triazole (DAT), is found to yield oxygen evolution reaction (OER) catalysts for alkaline solutions exhibiting high current densities (100 mA/cm2), high mass activity (∼1200 A/g of catalyst), high stability (>72 h), and low overpotentials (∼300 mV). By changing electrodeposition time, the activity of the catalyst can be tuned, with longer times yielding higher activities. The electrodeposition method works with any conductive substrate yielding unprecedented performance and providing an easy route to high activity catalysts.
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