Facile fabrication of robust 3D Fe-NiSe nanowires supported on nickel foam as a highly efficient, durable oxygen evolution catalyst
Facile fabrication of robust 3D Fe-NiSe nanowires supported on nickel foam as a highly efficient, durable oxygen evolution catalyst
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轻松制造支撑在泡沫镍上的坚固 3D Fe-NiSe 纳米线，作为高效、耐用的析氧催化剂
DOI：
10.1039/c7ta03095a
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发表时间：
2017
影响因子：
11.9
通讯作者：
Li Jinping
中科院分区：
文献类型：
--
作者：
Zhao Qiang;Zhong Dazhong;Liu Lin;Li D;an;Hao Genyan;Li Jinping
电解水裂解制氢是一种很有前途的可再生能源储存和利用方法。然而，缓慢的析氧反应（OER）阻碍了这一过程。因此，迫切需要通过简单、低成本的方法开发一种高效、鲁棒的OER催化剂。在此，我们报道了原位制备无定形Fe-NiSe /NF，而不需要聚合物粘合剂作为三维（3D）纳米线电极，用于有效的水氧化。在1 M KOH中表现出良好的耐久性。该催化剂只需要233和275 mV的过电位就可以驱动10和100 mA cm−2的电流密度，并且它的塔菲尔斜率很低，为48 mV dec−1。Fe-NiSe /NF的析氧法拉第效率接近96.8%。
Electrochemical hydrogen production through water splitting is one of the most promising methods for the storage and utilization of renewable energy. However, it is hindered by the sluggish oxygen evolution reaction (OER). Therefore, there is an urgent need to develop an efficient and robust OER catalyst through a simple and low-cost method. Herein, we report the in situ fabrication of amorphous Fe–NiSe/NF without a polymeric binder as a three-dimensional (3D) nanowire electrode for efficient water oxidation. It shows good durability in 1 M KOH. This catalyst requires overpotentials of only 233 and 275 mV to drive current densities of 10 and 100 mA cm−2, and it shows a low Tafel slope of 48 mV dec−1. The faradaic efficiency of Fe–NiSe/NF for oxygen evolution was determined to be close to 96.8%.