Solution Processed NiO/MoS 2 Heterostructure Nanocomposite for Supercapacitor Electrode Application

Dhivyaprasath Kasinathan, Praveena Prabhakar, Preethi Muruganandam, Biny R. Wiston, Ashok Mahalingam () and Ganesan Sriram ()
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Dhivyaprasath Kasinathan: New Generation Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015, India
Praveena Prabhakar: New Generation Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015, India
Preethi Muruganandam: New Generation Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015, India
Biny R. Wiston: New Generation Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015, India
Ashok Mahalingam: New Generation Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015, India
Ganesan Sriram: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea

Energies, 2022, vol. 16, issue 1, 1-13

Abstract: Metal oxide and metal dichalcogenide heterostructure composites are promising candidates for electrochemical use. In this study, a hybrid heterostructure composite electrode material was made using a straightforward hydrothermal process using transition metal oxide (NiO) and metal dichalcogenide (MoS 2 ). The surface of the flower-like structured MoS 2 was grown with granular structured NiO, and this heterostructure composite exhibited considerably improved specific capacitance when compared to the pure NiO and MoS 2 materials. The pseudocapacitive performance was effectively supported by the heterostructure combination of transition metal oxide (TMOs) and metal dichalcogenide (MDC), which greatly improved ion transport within the material and storage. At a current density of 1 A/g, the prepared heterostructure composite electrode material exhibited a specific capacitance of 289 F/g, and, after 2000 cycles, the capacitance retained 101% of its initial value. The symmetric device was constructed and put through tests using LED light. This finding opens up a new avenue for the quickly increasing the field of heterostructure materials.

Keywords: heterostructure composite; NiO supercapacitor; TMO–TMC composite; MoS 2 supercapacitor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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