Studies of reduced graphene oxide (rGO)/CuS nanocomposite for supercapacitor applications

Rahul Singhal; David Thorne; Manika Chaudhary; Ashwani Kumar; Shiva Bhardwaj; Rilind Abazi; Alexander Colon; Ram K. Gupta; Jules Scanley; Christine C. Broadbridge; Beer Pal Singh; Peter K. LeMaire; Rakesh K. Sharma

doi:10.1063/5.0166199

AIP Advances (Dec 2023)

Studies of reduced graphene oxide (rGO)/CuS nanocomposite for supercapacitor applications

Rahul Singhal,
David Thorne,
Manika Chaudhary,
Ashwani Kumar,
Shiva Bhardwaj,
Rilind Abazi,
Alexander Colon,
Ram K. Gupta,
Jules Scanley,
Christine C. Broadbridge,
Beer Pal Singh,
Peter K. LeMaire,
Rakesh K. Sharma

Affiliations

Rahul Singhal: Department of Physics and Engineering Physics, Central Connecticut State University, New Britain, Connecticut 06050, USA
David Thorne: Department of Physics and Engineering Physics, Central Connecticut State University, New Britain, Connecticut 06050, USA
Manika Chaudhary: Department of Physics, Chaudhary Charan Singh University, Meerut 250004, India
Ashwani Kumar: Nanoscience Laboratory, Institute Instrumentation Centre, IIT Roorkee, Roorkee 247667, India
Shiva Bhardwaj: Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, USA
Rilind Abazi: Department of Physics and Engineering Physics, Central Connecticut State University, New Britain, Connecticut 06050, USA
Alexander Colon: Department of Physics and Engineering Physics, Central Connecticut State University, New Britain, Connecticut 06050, USA
Ram K. Gupta: Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, USA
Jules Scanley: Connecticut State Colleges and Universities (CSCU) Center for Nanotechnology, Southern Connecticut State University, New Haven, Connecticut 06515, USA
Christine C. Broadbridge: Connecticut State Colleges and Universities (CSCU) Center for Nanotechnology, Southern Connecticut State University, New Haven, Connecticut 06515, USA
Beer Pal Singh: Department of Physics, Chaudhary Charan Singh University, Meerut 250004, India
Peter K. LeMaire: Department of Physics and Engineering Physics, Central Connecticut State University, New Britain, Connecticut 06050, USA
Rakesh K. Sharma: Department of Chemistry, Indian Institute of Technology Jodhpur, NH-62, Karwar, Jodhpur 342037, Rajasthan, India

DOI: https://doi.org/10.1063/5.0166199
Journal volume & issue: Vol. 13, no. 12
pp. 125011 – 125011-8

Abstract

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We have prepared CuS and CuS-rGO nanocomposites via the hydrothermal method. The physical properties of the synthesized materials were studied through x-ray diffraction and scanning electron microscopy. The supercapacitor characteristics were evaluated by cyclic voltammetric and galvanostatic charge–discharge studies. The cyclic voltammetric studies conform the pseudocapacitive nature of CuS and CuS-rGO electrodes. The specific capacitance of CuS was obtained as 207, 150, and 97 F/g at a current density of 0.5, 5, and 20 A/g, respectively. The rGO-CuS nanocomposite showed improved specific capacitance of 350, 251, and 149 F/g at current densities of 0.5, 5, and 20 A/g, respectively.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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