Facile synthesis of cupric hydroxide and cupric oxide on copper foil for potential electrochemical applications

7th International Conference on Key Engineering Materials

材料科学;工业技术

Espejo, E.M.A.^1 ; Balela, M.D.L.^1

Sustainable Electronic Materials Group, Department of Mining Metallurgical, and Materials Engineering, University of the Philippines Diliman, Quezon City

1101, Philippines^1

关键词: Alkaline solutions;    Current collector;    Efficient interaction;    Electrochemical applications;    Electrode material;    In-situ oxidation;    Pseudocapacitors;    Specific capacitance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012050/pdf
DOI  :  10.1088/1757-899X/201/1/012050

来源: IOP

【 摘 要 】

This paper presents the synthesis of cupric hydroxide [Cu(OH)2] and cupric oxide (CuO) via a simple in situ oxidation of copper (Cu) foil in alkaline solution for electrode materials in pseudocapacitors. Cu(OH)2and Cu(OH)2/CuO film grown on Cu substrate offer binderless and additive-free active materials directly in contact with the current collector. This approach allows more efficient interaction of electrolyte and the active material in terms of charge and mass exchange for higher capacitance. The Cu-based nanomaterials have uniform morphology, and are needle-like and flower-like in structure for Cu(OH)2and Cu(OH)2/CuO, respectively. The fabricated nanostructures exhibit a specific capacitance in the range of 400-2000 F/g.