MoO3@ZnO Nanocomposite as an Efficient Anode Material for Supercapacitors: A Cost Effective Synthesis Approach

Muduli, Sadananda and Pati, Subir K. and Swain, Smrutirekha and Martha, Surendra Kumar (2021) MoO3@ZnO Nanocomposite as an Efficient Anode Material for Supercapacitors: A Cost Effective Synthesis Approach. Energy & Fuels, 35 (20). pp. 16850-16859. ISSN 0887-0624

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Abstract

The high pseudocapacitance of metal oxides makes them a very promising electrode material for supercapacitors. In this work, we report a MoO3-ZnO composite as an efficient electrode material for supercapacitors. The MoO3-ZnO composite materials were synthesized by the facile solid-state impregnation-calcination method at 350 °C. The MoO3-ZnO composite shows a specific capacitance of 280 F g-1 at 1 A g-1 current density in the potential range between 0 and -1.3 V in 1 M Na2SO4. The composite material shows a power density of 650 W kg-1 at an energy density of 65 Wh kg-1 and is stable over 10 000 cycles at 5 A g-1 with 98% capacitance retention. The improved capacitive behavior of the MoO3-ZnO composite electrode is due to the redox behavior of MoO3, and the porous nature of ZnO, which facilitates the electrolyte ions interaction into the composite frameworks. The improved anodic potential charge storage nature and overall electrochemical performance depict that the MoO3-ZnO composite is a suitable electrode material for supercapacitors. © 2021 American Chemical Society.

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IITH Creators:

IITH Creators	ORCiD
Martha, Surendra Kumar	https://orcid.org/0000-0002-7762-7237

Item Type:

Article

Additional Information:

S. Muduli acknowledges the Ministry of Education, Govt. of India, for the fellowship. S. K. Martha acknowledges the DST-IISc Energy Storage Platform on Supercapacitors and Power Dense Devices through the MECSP-2K17 program under grant no. DST/TMD/MECSP/2K17/20.

Uncontrolled Keywords:

Anode material; Calcination method; Composites material; Cost effective; Effective synthesis; Efficient anode; Electrode material; Metal-oxide; Pseudocapacitance; Synthesised

Subjects:

Chemistry

Divisions:

Department of Chemistry

Depositing User:

. LibTrainee 2021

Date Deposited:

09 Sep 2022 06:11

Last Modified:

09 Sep 2022 06:11

URI:

http://raiithold.iith.ac.in/id/eprint/10501