Energy-Saving Synthesis of MOF-Derived Hierarchical and Hollow Co(VO 3 ) 2 -Co(OH) 2 Composite Leaf Arrays for Supercapacitor Electrode Materials.

Authors :: Zhang Y
Chen H
Guan C
Wu Y
Yang C
Shen Z
Zou Q
Source :: ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2018 Jun 06; Vol. 10 (22), pp. 18440-18444. Date of Electronic Publication: 2018 May 25.
Publication Year :: 2018
Abstract: A one-step and energy-saving method was proposed to synthesize hierarchical and hollow Co(VO <subscript>3</subscript> ) <subscript>2</subscript> -Co(OH) <subscript>2</subscript> composite leaf arrays on carbon cloth, which expressed high capacitance (522 mF cm <superscript>-2</superscript> or 803 F g <superscript>-1</superscript> at the current density of 0.5 mA cm <superscript>-2</superscript> ), good rate capability (79.5% capacitance retention after a 30-fold increase of the current density) and excellent cycling stability (90% capacitance retention after 15 000 charge-discharge cycles) when tested as a supercapacitor electrode.

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