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Preparation of size-selective Mn3O4 hexagonal nanoplates with superior electrochemical properties for pseudocapacitors
journal contribution
posted on 2015-01-01, 00:00 authored by G Wang, Z Ma, Y Fan, G Shao, Lingxue KongLingxue Kong, Weimin GaoPorous Mn3O4 hexagonal nanoplates were synthesized through annealing the hydrohausmannite precursor obtained by a one-pot hydrothermal process and by precisely controlling the concentrations of potassium hydroxide and glucose. The effect of potassium hydroxide and glucose on the growth of hexagonal nanoplates was investigated, and a growth mechanism was also proposed. Due to its abundant pores, the pure Mn3O4-based electrode exhibits excellent cycling stability with 100% capacity retention after 5000 cycles. The asymmetric supercapacitor exhibited high performance with an energy density of 17.276 W h kg-1 at a power density of 207.3 W kg-1 in a wide potential window of 1.5 V.
History
Journal
Physical chemistry chemical physicsVolume
17Issue
35Pagination
23017 - 23025Publisher
Royal Society of ChemistryLocation
Cambridge, Eng.Publisher DOI
ISSN
1463-9076Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2015, Royal Society of ChemistryUsage metrics
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