Study on Cathodic Hydrogen Evolution Behavior of Electrodeposited Rare Earth Alloy Ni-La

Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (5): 115-116.

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Study on Cathodic Hydrogen Evolution Behavior of Electrodeposited Rare Earth Alloy Ni-La

Liu Shulan, Qin Qixian, Cheng Danhong, Guo Hetong

Department of Applied Chemistry, Tianjin University, Tianjin 300072

Received:1994-12-27 Revised:1995-04-06 Published:1995-10-10 Online:1995-10-10

Abstract

Abstract: Ni-La alloy coating containing 22.58wt% rare earth La was prepared by elec-trodeposition technique from aqueous solution.The results of XRD tests and calculationbased on the XRD spectra show that the Ni-La alloy coating obtained is a displacement solidsolution.Activation energy of cathodic hydrogen evolution reaction in alkaline solution andreal surface area of the Ni-La alloy and Ni electrodes were determined through electrochemi-cal tests.It is found from the results that the real surface area of the Ni-La allov electrode issubstantially larger than that of Ni electrode,Activation energy of cathodic hydrogen evolu-tion reaction in 25wt%NaOH solution of the Ni-La alloy electrode is enormously lower thanthat of Ni electrode.It can be concluded that the coating of electrodeposited rare earth alloy Ni-La possesses excellent electrocatalytic activity for hydrogen evolution reaction.

Key words: Ni-La alloy, electrodeposition, hydrogen evolution reaction

Liu Shulan, Qin Qixian, Cheng Danhong, Guo Hetong. Study on Cathodic Hydrogen Evolution Behavior of Electrodeposited Rare Earth Alloy Ni-La[J]. Chinese Journal of Applied Chemistry, 1995, 0(5): 115-116.

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Study on Cathodic Hydrogen Evolution Behavior of Electrodeposited Rare Earth Alloy Ni-La

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