Electrodeposition kinetics of Ni-Mo alloy coating in choline-ethylene glycol deep eutectic system and its catalytic performance toward hydrogen evolution reaction

Bibliographic Details
Title: Electrodeposition kinetics of Ni-Mo alloy coating in choline-ethylene glycol deep eutectic system and its catalytic performance toward hydrogen evolution reaction
Authors: SHENG Shizhan, LI Lin, LI Wenchang, WANG Huihua
Source: Cailiao gongcheng, Vol 51, Iss 12, Pp 159-168 (2023)
Publisher Information: Journal of Materials Engineering, 2023.
Publication Year: 2023
Collection: LCC:Materials of engineering and construction. Mechanics of materials
Subject Terms: chcl-eg deep eutectic solvent, ni-mo alloy coating, deposition kinetics, electro catalysis, hydrogen evolution reaction(her), Materials of engineering and construction. Mechanics of materials, TA401-492
More Details: The Ni-Mo alloy coatings were electrodeposited in the choline-ethylene glycol deep eutectic system(ChCl-EG) using Cu as the substrates, and the electrochemical impedance spectrum(EIS), scanning electronic microscopy(SEM), energy dispersive spectrometer(EDS) and X-ray diffraction (XRD) were employed to investigate the deposition kinetics of Ni-Mo alloy coatings. The influence of polarization potential on electrocatalytic HER performance of Ni-Mo alloy coatings was investigated. The results indicate that as the polarization potential increases, the Ni-Mo alloy coatings undergoes a process of evolution from nano Ni, Ni+MoO2 (MoO2Ni4) to Ni4Mo, indicating that potential is an important factor affecting the component change of Ni-Mo alloy coatings. Ni-Mo alloy coating fabricated at -1.4 V vs Ag displays excellent hydrogen evolution catalytic activity and stability, where the overpotential at 10 mA·cm-2 is only 51 mV, the Tafel slope is 48.7 mV·dec-1, and the decrease in hydrogen evolution overpotential is not significant(Δη100=11 mV) at 100 mA·cm-2 after 1000 cycles of catalytic cycling.
Document Type: article
File Description: electronic resource
Language: Chinese
ISSN: 1001-4381
Relation: http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2022.000979; https://doaj.org/toc/1001-4381
DOI: 10.11868/j.issn.1001-4381.2022.000979
Access URL: https://doaj.org/article/dc37baca1404427b90757d10de034783
Accession Number: edsdoj.37baca1404427b90757d10de034783
Database: Directory of Open Access Journals
More Details
ISSN:10014381
DOI:10.11868/j.issn.1001-4381.2022.000979
Published in:Cailiao gongcheng
Language:Chinese