Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2014-08-15

Journal: JOURNAL OF POWER SOURCES

Included Journals: Scopus、EI、SCIE

Volume: 260

Page Number: 169-173

ISSN: 0378-7753

Key Words: Molecular sieve; Nickel phosphate; Supercapacitors; Alkaline media; VSB-5

Abstract: The nickel phosphate molecular sieve VSB-5 as an electrode material for supercapacitors is investigated by cyclic voltammetry (CV) and chronopotentiometry in alkaline media. The VSB-5 shows high specific capacitance and excellent cycling stability. The specific capacitance of VSB-5 is 2740 F g(-1) at a current density of 3 Ag-1 and there is no significant reduction in Coulombic efficiency after 3000 cycles at 30 A g(-1). In comparison with mesoporous nickel phosphate NiPO, porous nickel hydroxide and mesoporous nickel oxide, this remarkable electrochemical performance of VSB-5 will make nickel phosphate material a promising new electrode material for high performance supercapacitors. (C) 2014 Elsevier B.V. All rights reserved.