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论文类型：期刊论文

发表时间：2014-08-15

发表刊物：JOURNAL OF POWER SOURCES

收录刊物：SCIE、EI、Scopus

卷号：260

页面范围：169-173

ISSN号：0378-7753

关键字：Molecular sieve; Nickel phosphate; Supercapacitors; Alkaline media; VSB-5

摘要：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.