Electrodeposited synthesis of self-supported Ni-P cathode for efficient electrocatalytic hydrogen generation

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• 作者：Ruixian Wu ; Yuming Dong ; ^{dongym@jiangnan.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Pingping Jiang ; Guangli Wang ; Yanmei Chen ; Xiuming Wu
• 关键词：Nickel phosphorus ; Self-supported ; Electrodeposition ; Hydrogen production
• 刊名：Progress in Natural Science
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：26
• 期：3
• 页码：303-307
• 全文大小：908 K

文摘

One of the key challenges for electrochemical water splitting is the development of low-cost and efficient hydrogen evolution cathode. In this work, a self-supported Ni-P cathode was synthesized by a facile electrodeposition method. The composition and morphology were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. The Ni-P cathode performed low onset over-potential, good catalytic activity and long-term stability under neutral and alkaline conditions. The mechanism of Ni-P electrode for hydrogen production was discussed by electrochemical impedance spectroscopy. The excellent performance of Ni-P cathode was mainly attributed to the synergistic effect of phosphate anions and the self-supported feature.