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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.58  No.2 (2017)  >  pp.298-301

MATERIALS TRANSACTIONS
<<Previous article Vol.58  No.2 (2017)   pp.298 - 301 Next article>>

Pseudocapacitive Behavior of Ag3PO4 Nanospheres Prepared by a Sonochemical Process

Chengxiang Zheng1), Hua Yang1), Yang Yang1)
1) School of Science, Lanzhou University of Technology

Ag3PO4 nanospheres with an average size of ~300 nm were synthesized via a sonochemical process. The electrochemical performances of the as-synthesized Ag3PO4 nanospheres in aqueous KOH electrolyte with different concentrations were investigated by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy. The measured cyclic voltammetry curves as well as charge-discharge curves reveal a good pseudocapacitive behavior of Ag3PO4 nanospheres. In a 1 M KOH electrolyte at a current density of 0.5 mA cm−2, the specific capacitance of Ag3PO4 nanospheres is obtained to be 832 F g−1. However, Ag3PO4 nanospheres exhibit an inferior charge-discharge cycling stability, which could be due to the formation of Ag2O during the cycling process.




Keyword:
spherical Ag3PO4 particles, KOH electrolyte, electrochemical performance, pseudocapacitance

Received: September 05, 2016
Accepted: November 17, 2016 , Published online: January 25, 2017

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