In Situ Growth of Amorphous NiFe Hydroxides on Spinel NiFe2O4 via Ultrasonic-Assisted Reduction for an Enhanced Oxygen Evolution Reaction
In Situ Growth of Amorphous NiFe Hydroxides on Spinel NiFe2O4 via Ultrasonic-Assisted Reduction for an Enhanced Oxygen Evolution Reaction
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通过超声波辅助还原增强析氧反应在尖晶石 NiFe2O4 上原位生长非晶态 NiFe 氢氧化物
DOI：
10.1021/acssuschemeng.0c05888
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发表时间：
2020-11
影响因子：
8.4
通讯作者：
Feng Shouhua
中科院分区：
文献类型：
--
作者：
Yao Lu;Geng Zhibin;Zhang Wei;Wu Xiaofeng;Liu Jinghai;Li Liping;Wang Xiyang;Hou Xiangyan;Xu Ke;Huang Keke;Feng Shouhua
Amorphous Ni–Fe hydroxides (NiFe(OH)x) are considered to possess promising potential as oxygen evolution reaction (OER) electrocatalysts, but amorphous NiFe(OH)xis hard to synthesize due to the complicated multistep synthesis process. Herein, amorphous NiFe(OH)xis successfully grown in situ on the surface of NiFe2O4via an ultrasonic-assisted reduction method. This method takes advantage of ultrasonic cavitation to achieve a unique reduction effect, migration of Ni and Fe cations of NiFe2O4to the crystal surface, and in situ growth of amorphous NiFe(OH)x, thereby forming a NiFe2O4/NiFe(OH)xcomposite. This material exhibits enhanced electrochemical performance with an overpotential of 276 mV at 10 mA cm–2. The ultrasonic-assisted reduction method can be used to synthesize amorphous NiFe(OH)xwith no residual reactants, providing a simple and facile way to synthesize amorphous hydroxide materials.
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影响因子：
8.6
作者：
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通讯作者：
K. Niu;Feng Lin;L. Fang;D. Nordlund;R. Tao;T. Weng;M. Doeff;Haimei Zheng
影响因子：
2.5
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通讯作者：
Hosono, H
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作者：
Xiao, Changlong;Li, Yibing;Zhao, Chuan
通讯作者：
Zhao, Chuan