Electrodeposited NiCu Alloy Catalysts for Glucose Oxidation
- Electrodeposited NiCu Alloy Catalysts for Glucose Oxidation
- 임지은; 안상현; 장종현; 박한수; 김수길
- Glucose oxidation; NiCu alloy; Catalyst; Activity
- Issue Date
- Bulletin of the Korean Chemical Society
- VOL 35, NO 7, 2019-2024
- NiCu alloys have been suggested as potential candidates for catalysts in glucose oxidation. In this study, NiCu alloys with different compositions were prepared on a glassy carbon substrate by changing the electrodeposition potential to examine the effect of Ni/Cu ratios in alloys on catalytic activity toward glucose oxidation. Cyclic voltammetry and chronoamperometry showed that NiCu alloys had higher catalytic activity than pure Ni and Cu catalysts. Especially, Ni59Cu41 had superior catalytic activity, which was about twice that of Ni at a given oxidation potential. X-ray analyses showed that the oxidation state of Ni in NiCu alloys was increased with the content of Cu by lattice expansion. Ni components in alloys with higher oxidation state were
more effective in the oxidation of glucose.
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