Three-dimensional CoSe2 nanoparticles/PANI films composite via co-electrodeposition as a binder-free and a non-noble metal catalyst alternative for methanol oxidation application

Gopalakrishnan, Arthi and Badhulika, Sushmee (2021) Three-dimensional CoSe2 nanoparticles/PANI films composite via co-electrodeposition as a binder-free and a non-noble metal catalyst alternative for methanol oxidation application. Materials Chemistry and Physics, 273. pp. 1-7. ISSN 0254-0584

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Abstract

Herein, we report a novel binder-free polyaniline coated 3D crumpled CoSe2 nanoparticles on Ni foam (CoSe2/PANI/NF) electrode developed by a simple co-electrodeposition process for methanol oxidation application. The as-electrodeposited 3D CoSe2 with PANI films on Ni foam morphology was confirmed through in-depth material characterizations. As a non-noble electro-catalyst for methanol oxidation, the CoSe2/PANI/NF electrode showed high current density of 139 mA cm−2, low onset potential and no decay in the current response over 3000 s at 0.5 V. The high electrochemical performance of the electrode is due to the synergistic effect between PANI and CoSe2 nanostructures, high electrical conductivity, and hydrophilic functional groups of PANI contributing to the low internal resistance and effective diffusion of ions. These results demonstrate that the CoSe2/PANI/NF with its unique 3D morphology has great potential in energy storage and catalytic applications. © 2021 Elsevier B.V.

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IITH Creators:

IITH Creators	ORCiD
Badhulika, Sushmee	https://orcid.org/0000-0003-3237-3031

Item Type:

Article

Additional Information:

SB acknowledges financial assistance from Science and Engineering Research Board (SERB) grant SB/WEA-03/2017 .

Uncontrolled Keywords:

Binder free; Co-electrodeposition; Electrodeposition process; Film composites; Foam morphology; Materials characterization; Methanol Oxidation; Ni foam; Non-noble metal catalysts; Simple++

Subjects:

Electrical Engineering

Divisions:

Department of Electrical Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

04 Oct 2022 14:07

Last Modified:

04 Oct 2022 14:07

URI:

http://raiithold.iith.ac.in/id/eprint/10807