4.7 Article

Electrochemical properties of rice-like copper manganese oxide (CuMn2O4) nanoparticles for pseudocapacitor applications

Journal

JOURNAL OF ALLOYS AND COMPOUNDS
Volume 723, Issue -, Pages 115-122

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.06.249

Keywords

CuMn2O4; Nanoparticles; Solvothermal; Rice-like morphology; 577.9 F g(-1) at 0.5 A g(-1)

Funding

  1. UGC [F.30-326/2016]

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CuMn2O4 nanoparticles were successfully synthesized by adopting solvothermal method with optimum hydrothermal processing temperature maintained at 160 degrees C for 12 h. The synthesized CuMn2O4 nanoparticles structure, morphology, optical and electrochemical properties were analyzed with respect to varying the hydrothermal temperature. The product dominant XRD peak observed at 35.8 degrees matches well with corresponding planes of standard data. The IR vibrational modes of Mn-O and Cu-O band were authenticated by the peak appearance at 526 and 630 cm(-1). The rice-like morphology formation of CuMn2O4 nanoparticles prepared at 160 degrees C hydrothermal processing temperature revealed the superior behavior of electrochemical properties. The electrochemical studies carried out to estimate the specific capacitance of CuMn2O4 nanoparticles (MX3) at low scan rate 10 mV/s showed an excellent specific capacitance value of 520.4 F/g. The GCD studies of synthesized rice-like morphology CuMn2O4 nanoparticles (MX3) revealed superior specific capacitance of 577.9 F g(-1) at 0.5 A g(-1) and retain its 98% capacitance as 571.6 F g(-1) at 1 A g(-1) current density. (C) 2017 Elsevier B.V. All rights reserved.

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