Multi-walled carbon nanotubes decorated CdO/Co3O4 hexagonal nanoplates: Unveiling their potential in hybrid supercapacitor

被引：0

作者：

Bhagwan, Jai ^{[1
]}

Han, Jeong In ^{[1
]}

机构：

[1] Dongguk Univ Seoul, Dept Chem & Biochem Engn, Seoul 04620, South Korea

来源：

APPLIED SURFACE SCIENCE | 2025年 / 691卷

关键词：

Aqueous hybrid supercapacitor; Energy and power densities; HIGH-PERFORMANCE; FACILE SYNTHESIS; HYDROTHERMAL SYNTHESIS; ZNCO2O4; MICROSPHERES; NANOSHEETS; NANOWIRES; ELECTRODE; NANOPARTICLES; FOAM;

D O I：

10.1016/j.apsusc.2025.162689

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple synthesis process for hybrid transition metal oxides is a crucial way for their application in energy storage system. In this work, multi-walled carbon nanotubes (MWCNTs) decorated CdO/Co3O4 hexagonal like nanoplates are prepared by fast emerging co-precipitation process. Further, CdO/Co3O4/MWCNT composite is used for energy storage performance and, specific capacity of 214.5 mAh g- 1 is obtained at 1 A g- 1. The capacity of CdO/Co3O4/MWCNT is found to be higher from the capacities of CdO (40.25 mAh g- 1), Co3O4 (100.5 mAh g- 1) and CdO/Co3O4 (171.63 mAh g- 1). Further, hybrid supercapacitor (HSC) is designed by CdO/Co3O4/ MWCNT (positive electrode) and activated carbon (AC) (negative electrode). The CdO/Co3O4/MWCNT//AC delivers the high energy density of 37 W h kg- 1 with the power density of 750 W kg- 1. In addition, to confirm the electronic applicability for portable appliances, four green color light-emitting diodes (LEDs), kitchen timer and toy motor fan are operated separately by two CdO/Co3O4/MWCNT//AC hybrid supercapacitor connected in series.

引用

页数：14

共 68 条

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