Hybrid Co(OH)2/nano-graphene/Ni nano-composites on silicon microchannel plates for miniature supercapacitors

Cheng Liang; Leilei Chen; Dajun Wu; Chi Zhang; Shaohui Xu; Yiping Zhu; Dayuan Xiong; Pingxiong Yang; Lianwei Wang; Paul K. Chu

doi:10.1016/j.matlet.2016.02.132

Author(s)

Cheng Liang
Leilei Chen
Dajun Wu
Chi Zhang
Shaohui Xu
Yiping Zhu
Dayuan Xiong
Pingxiong Yang
Lianwei Wang

Detail(s)

Original language	English
Pages (from-to)	40-43
Journal / Publication	Materials Letters
Volume	172
Online published	26 Feb 2016
Publication status	Published - 1 Jun 2016

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2016.02.132 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84960902144&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(e49775ce-5bf8-423e-ba95-b5a29f053fc7).html

Abstract

Nano-scale Co(OH)₂/NG (nano-graphene: NG) composites serving as the active materials of miniature supercapacitors are deposited on macroporous electrically conductive network (MECN). The Co(OH)₂/NG composite in the channels largely contribute to the capacitance. The electrochemical properties are investigated by cyclic voltammetry (CV), galvanostatic charging-discharging, and electrochemical impedance spectroscopy (EIS) in a 2 M KOH solution. The Co(OH)₂/NG composite exhibits a stable capacitance of 3.522 F/cm² (880.5 F/g) and retention ratio is 99% after 5000 cycles demonstrating the stability and durability. The Co(OH)₂/NG/MECN can be scanned faster than Co(OH)₂/MECN in CV because of the higher conductivity.

Research Area(s)

Carbon materials, Co(OH)2, Composite materials, Deposition, MECN, Supercapacitor

Citation Format(s)

[ RIS ] [ BibTeX ]

Hybrid Co(OH)₂/nano-graphene/Ni nano-composites on silicon microchannel plates for miniature supercapacitors. / Liang, Cheng; Chen, Leilei; Wu, Dajun et al.
In: Materials Letters, Vol. 172, 01.06.2016, p. 40-43.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Liang, C, Chen, L, Wu, D, Zhang, C, Xu, S, Zhu, Y, Xiong, D, Yang, P, Wang, L & Chu, PK 2016, 'Hybrid Co(OH)₂/nano-graphene/Ni nano-composites on silicon microchannel plates for miniature supercapacitors', Materials Letters, vol. 172, pp. 40-43. https://doi.org/10.1016/j.matlet.2016.02.132

Liang, C., Chen, L., Wu, D., Zhang, C., Xu, S., Zhu, Y., Xiong, D., Yang, P., Wang, L., & Chu, P. K. (2016). Hybrid Co(OH)₂/nano-graphene/Ni nano-composites on silicon microchannel plates for miniature supercapacitors. Materials Letters, 172, 40-43. https://doi.org/10.1016/j.matlet.2016.02.132

Liang C, Chen L, Wu D, Zhang C, Xu S, Zhu Y et al. Hybrid Co(OH)₂/nano-graphene/Ni nano-composites on silicon microchannel plates for miniature supercapacitors. Materials Letters. 2016 Jun 1;172:40-43. Epub 2016 Feb 26. doi: 10.1016/j.matlet.2016.02.132

Liang, Cheng ; Chen, Leilei ; Wu, Dajun et al. / Hybrid Co(OH)₂/nano-graphene/Ni nano-composites on silicon microchannel plates for miniature supercapacitors. In: Materials Letters. 2016 ; Vol. 172. pp. 40-43.