Synthesis and characterization of cobalt hydroxide carbonate nanostructures

Content Provider	Semantic Scholar
Author	Lin, Xuehao Musharavati, Farayi Zalnezhad, Erfan Bae, Sungchul Cho, Bum-Yean Hui, Oscar K. S.
Copyright Year	2017
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.
Starting Page	46925
Ending Page	46931
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1039/C7RA09050A
Volume Number	7
Alternate Webpage(s)	https://pubs.rsc.org/en/content/articlepdf/2017/ra/c7ra09050a
Alternate Webpage(s)	https://doi.org/10.1039/C7RA09050A
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article