journal article·2023-12-01Open access

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

AIP Advances· Volume 13· Issue 12

Abstract

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.
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Research context

OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics and Engineering Physics, Central Connecticut State University 1 , New Britain, Connecticut 06050, USA

Department of Physics, Chaudhary Charan Singh University 2 , Meerut 250004, India

Nanoscience Laboratory, Institute Instrumentation Centre, IIT Roorkee 3 , Roorkee 247667, India

Department of Physics, Graphic Era (Deemed to be University) 4 , Dehradun, Uttarakhand 248002, India

Department of Chemistry, Pittsburg State University 5 , Pittsburg, Kansas 66762, USA

Connecticut State Colleges and Universities (CSCU) Center for Nanotechnology, Southern Connecticut State University 6 , New Haven, Connecticut 06515, USA

Department of Chemistry, Indian Institute of Technology Jodhpur 7 , NH-62, Karwar, Jodhpur 342037, Rajasthan, India

Funding

CCSU-AAUP Minority Retention Grant · CCSU-AAUP Faculty Research Grant

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