Ni<sub>10</sub>Mo/CF复合材料的制备及析氢性能研究

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Abstract Ni₁₀Mo/Cu foam (CF) electrode was prepared by electrochemical depositing the Ni₁₀Mo film on CF. Ni₁₀Mo/CF electrodes with different Ni₁₀Mo contents and particle sizes were obtained by changing the deposition time, the surface morphology and electrochemical hydrogen evolution reaction (HER) performance of Ni₁₀Mo/CF electrodes were also explored. The morphology of Ni₁₀Mo alloy nanoparticles was studied by SEM analysis, and the composition of Ni₁₀Mo was studied by EDS and XRD analysis. The electrochemical activity of the electrodes was comprehensively evaluated by linear scanning voltammetry (LSV), testing electrochemical double-layer capacitance, and stability tests. The results show that the morphology of the catalysts depends on the deposition time. With the increase of the deposition time, the HER catalytic activity of Ni₁₀Mo alloy nanoparticles in 1 M KOH increases first and then decreases, when the current density remain the same. Among them, when the deposition time is 6 min, the electrode shows an overpotential of 227 mV at 10 mA/cm²and exhibits excellent stability.

Key words： electrochemical deposition nickel-molybdenum alloy hydrogen evolution reaction copper foam

Received: 23 March 2020 Published: 11 August 2020

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	PU Jiaxuan
	CAO Jun
	WEI Qiuping
	YIN Dengfeng
	MA Li
	ZHOU Kechao

Cite this article:

PU Jiaxuan,CAO Jun,WEI Qiuping, et al. Preparation of Ni₁₀Mo/CF composite as an electrocatalyst for hydrogen evolution reaction in alkali solution[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(3): 260-266.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2020/V25/I3/260

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