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Synthesis, crystal structure and pseudocapacitor electrode properties of γ-Bi2MoO6 nanoplates

By B. Senthilkumar, R.K. Selvan, L. Vasylechko and M. Minakshi

Abstract

Nanoplate-like bismuth molybdates (γ-Bi2MoO6) is prepared for the first time by urea assisted solution combustion synthesis (SCS) and studied the structural and electrochemical properties to explore the possibility of using as negative electrodes in pseudocapacitors. The formation of single phase γ-Bi2MoO6 and plate-like morphology is revealed from XRD Rietveld refinement and FESEM, respectively. The pseudocapacitive behaviour of γ-Bi2MoO6 is analyzed by cyclic voltammetry and galvanostatic charge-discharge techniques. The effect of Na based aqueous electrolytes on capacitance of the Aurvillius type structured Bi2MoO6 is investigated. As prepared γ-Bi2MoO6 nanoplates provide the high specific capacitance (519 F g-1) compared with the high-temperature monoclinic phase γ(H) Bi2MoO6 in 1 M NaOH electrolyte. The obtained high specific capacitance of as prepared Bi2MoO6 could be attributed to the decrease in particle size, increase in active sites, and nanoplate-like structure of as prepared γ-Bi2MoO 6

Publisher: Elsevier Masson SAS
Year: 2014
OAI identifier: oai:researchrepository.murdoch.edu.au:23147
Provided by: Research Repository
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