过电位
化学
电催化剂
析氧
氧气
无定形固体
化学工程
电导率
吸附
纳米技术
无机化学
结晶学
材料科学
物理化学
电极
有机化学
电化学
工程类
作者
Mengyuan Zhang,Lulu Zhou,Xuena Du,Xianmin Huang,Hui Liu,Qingbo Wang,Long Guo,Hai Wang
摘要
In this work, oxygen-defect rich Fe(OH)3@Co(OH)2@NF nanoarray (which is denoted as FCN) was synthesized via a facile sacrificial template-accelerated hydrolysis (STAH) method. The introduced oxygen vacancies during the incorporation of Fe3+ reduced the adsorption barrier of -OH, and enhanced the conductivity of the material. In addition, morphology and phase transformation, amorphous regions between the crystalline heterojunction surfaces give FCN nanoarray higher surface area with more active sites, which enhances the oxygenation performance. Consequently, oxygen-defect rich FCN nanoarray possessed a low OER overpotential of 225.8 mV at 50 mA cm−2. In this work, oxygen-defects rich Fe(OH)3@Co(OH)2@NF nanoarray (which is denoted as FCN) was synthesized via a facile sacrificial template-accelerated hydrolysis (STAH) method. The introduced oxygen vacancies during the incorporation of Fe3+ reduced the adsorption barrier of -OH, and enhanced the conductivity and oxygenation performance. Consequently, oxygen-defects rich FCN possessed an OER overpotential of 196.2 mV at 20 mA cm−2.
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