Synthesis and Characteristics of Mesoporous Copper Cobalt Oxides Using the Inverse Micelle Method Fabricated for Supercapacitors.

Autor: Heo SG; Korea Institute for Rare Metal, Korea Institute of Industrial Technology, Sixth floor 194, Hogupo-ro, Namdong-gu, Incheon 21655, Korea.; Department of Materials Science and Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Korea., Park KT; Korea Institute for Rare Metal, Korea Institute of Industrial Technology, Sixth floor 194, Hogupo-ro, Namdong-gu, Incheon 21655, Korea., Oh SJ; Department of Materials Science and Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Korea., Seo SJ; Korea Institute for Rare Metal, Korea Institute of Industrial Technology, Sixth floor 194, Hogupo-ro, Namdong-gu, Incheon 21655, Korea.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2024 Jan 29; Vol. 9 (5), pp. 5338-5344. Date of Electronic Publication: 2024 Jan 29 (Print Publication: 2024).
DOI: 10.1021/acsomega.3c06408
Abstrakt: Mesoporous materials have gained considerable attention in the fabrication of supercapacitor electrodes because of their large surface areas and controlled porosities. This study reports the synthesis of mesoporous CuCo 2 O 4 powders using the inverse micelle method. X-ray diffraction, N 2 sorption measurement, transmission electron microscopy, and X-ray photoelectron spectroscopy were performed to investigate the properties of the powders. After heat treatment at 250 °C in a vacuum atmosphere, the mesoporous CuCo 2 O 4 powders exhibited a large specific surface area of 116.32 m 2 g -1 and a high crystallinity. The electrode fabricated by using the as-prepared mesoporous CuCo 2 O 4 powder exhibited enhanced electrical properties with a maximum specific capacitance of 140 F g -1 and capacitance retention of 91.4% after 3000 continuous charge-discharge cycles. Therefore, the as-prepared mesoporous CuCo 2 O 4 powders hold great potential in the fabrication of supercapacitor electrodes to be used for a wide range of electrochemical applications.
Competing Interests: The authors declare no competing financial interest.
(© 2024 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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