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Synthesis and characterization of cobalt hydroxide carbonate nanostructures

Title
Synthesis and characterization of cobalt hydroxide carbonate nanostructures
Author
Erfan Zal Nezhad
Keywords
FACILE SYNTHESIS; NICKEL FOAM; ELECTRODE; GRAPHENE; GROWTH
Issue Date
2017-07
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v. 7, no. 74, page. 46925-46931
Abstract
Battery-type electrodes of three-dimensional (3D) hierarchical cobalt hydroxide carbonate arrays on Ni foam were fabricated using a hydrothermal method for use in supercapacitors. X-ray diffraction analysis, scanning electron microscopy, and transmission electron microscopy were used to characterize their structures and morphologies. The cobalt hydroxide carbonate synthesized with 10 h reaction time showed the highest specific capacitance (1381 F g(-1) at a current density of 2 A g(-1)) and excellent cycling stability (92% capacitance retention after 5000 cycles). Moreover, its capacitance increased by 33% at 2 A g(-1) and by 10% at 20 A g(-1) after 5000 charge-discharge cycles. This cobalt hydroxide carbonate composite is a promising candidate for electrochemical energy-related applications.
URI
https://pubs.rsc.org/en/content/articlelanding/2017/RA/C7RA09050A#!divAbstracthttps://repository.hanyang.ac.kr/handle/20.500.11754/114999
ISSN
2046-2069
DOI
10.1039/c7ra09050a
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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