催化作用
复合数
沉积(地质)
化学工程
析氧
材料科学
氧气
化学
复合材料
物理化学
电化学
地质学
有机化学
电极
工程类
古生物学
沉积物
作者
Rui Wang,Zihan Li,Zhengmin Li,Mengjin Wen,Guixue Wang,Guangwen Xie,Xin Liu,Luhua Jiang
标识
DOI:10.1016/j.ijhydene.2022.06.266
摘要
The proper construction of high efficiency, low-cost, earth-abundant oxygen evolution reaction (OER) catalyst is essential for hydrogen formation by water splitting. A novel electrocatalyst with highly active OER performance was manufactured by a simple electroless deposition method of Ni-Fe-P-WO 3 on nickel foam (NF). Benefiting from outstanding mass transfer capability of Ni-Fe-P-WO 3 /NF heterogeneous structure, abundance of active sites in the amorphous architecture and etc., the Ni-Fe-P-WO 3 /NF shows extremely superb electrocatalytic properties compare to noble metal catalyst IrO 2 /NF for OER, which needs an overpotential of only 218 mV in 1.0 M KOH solution to achieve the current density of 10 mA cm −2 . It also has remarkable OER activity at high current density that only needs 298 mV to attain 100 mA cm −2 current density. Moreover, the Ni-Fe-P-WO 3 /NF has low Tafel slope of 42 mV dec −1 . This study offers a novel approach to the production of OER multiphase electrocatalysts from oxides and alloys. • The Ni-Fe-P-WO 3 /NF electrode is synthesized by a facile electroless deposition method. • The Ni-Fe-P-WO 3 /NF exhibits excellent performances for OER: 218 mV at 10 mA cm −2 in 1 M KOH. • Interfacial effect of heterogeneous structures and synergistic effect between metals.
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