在CoAl层状双氢氧化物纳米阵列上形成非晶态Co-Al-P层作为析氢反应的中性电催化剂。
Formation of Amorphous Co-Al-P Layer on CoAl Layered Double Hydroxide Nanoarray as Neutral Electrocatalysts for Hydrogen Evolution Reaction.
作者信息
Teng Wanqing, Sun Zhaomei, Xie Junfeng, Wang Ziqiang, Zheng Xiangjiang, Tang Bo
机构信息
Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, China.
Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China.
出版信息
Front Chem. 2020 Oct 22;8:552795. doi: 10.3389/fchem.2020.552795. eCollection 2020.
Exploration of high-efficiency and inexpensive electrode catalysts is of vital importance for the hydrogen evolution reaction (HER). In this research, an amorphous Co-Al-P layer was constructed on the surface of CoAl layered double hydroxide (CoAl-LDH) via an wet phosphidation strategy. The core-shell CoAl-LDH@Co-Al-P on Ti mesh (CoAl-LDH@Co-Al-P/TM) as an active HER electrocatalyst demands an overpotential of 150 mV to achieve a current density of 10 mA cm at neutral pH. Moreover, CoAl-LDH@Co-Al-P/TM also exhibits good electrochemical stability and a superior Faradic efficiency of nearly 100%.
探索高效且廉价的电极催化剂对析氢反应（HER）至关重要。在本研究中，通过湿磷化策略在CoAl层状双氢氧化物（CoAl-LDH）表面构建了非晶态Co-Al-P层。作为一种活性析氢电催化剂，Ti网上的核壳结构CoAl-LDH@Co-Al-P（CoAl-LDH@Co-Al-P/TM）在中性pH值下，要达到10 mA cm²的电流密度需要150 mV的过电位。此外，CoAl-LDH@Co-Al-P/TM还表现出良好的电化学稳定性和近100%的优异法拉第效率。
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