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Vol. 34 No. 4 (2022): Vol 34 Issue 4, 2022

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Exfoliation of MoS2-RGO Hybrid 2D Sheets by Supercritical Fluid Process

https://doi.org/10.14233/ajchem.2022.23707
Murthy Muniyappa
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India
Mahesh Shastri
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India ; Department of Electronics & Communication, Nagarjuna College of Engineering & Technology, Devanahalli, Bengaluru-562164, India
Manjunath Shetty
Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal-576104, India
Vinay Gangaraju
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India
Jagadeesh Babu Sriramoju
Department of Physics, Malla Reddy Engineering College, Maisammaguda, Hyderabad-500100, India
Sindhushree Muralidhar
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India
Manikanta P. Narayanaswamy
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India
Mudike Ravi
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India
Navyarani Marlingaiah
Department of Applied Sciences, Dayanand Sagar University, Kumar Swamy Layout, Bengaluru-560111, India
Prasanna D. Shivaramu
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India
Ananda Kumar C S
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India
Dinesh Rangappa
Department of Applied Science (Nanotechnology), PG Centre Bangalore Region, Visvesvaraya Technological University, VIAT, Muddenahalli, Chikkaballapur-562101, India

Corresponding Author(s) : Dinesh Rangappa

dineshrangappa@gmail.com; dinesh.rangappa@vtu.ac.in

Asian Journal of Chemistry, Vol. 34 No. 4 (2022): Vol 34 Issue 4, 2022

Abstract

Layered 2D transition metal dichalcogenides (TMD’s) have been considered as an important class of materials in the field of energy and environmental applications. Therefore, it is desirable to fabricate 2D hybrid TMD’s materials in simple solution processing methods. In this study, MoS2-RGO hybrid 2D few layered sheets are produced by supercritical fluid process (SCF) by using ethanol as solvent at 250 ºC in a short duration of 0.5 h. Atomic force microscopy (AFM), transmission electron microscope (TEM) and scanning electron microscope (SEM) images confirmed the formation of 2D hybrid few layered sheets. The electrochemical impedance measurement indicates fivefold increase in conductivity of bulk MoS2. This work presents rapid and one pot exfoliation of MoS2 and simultaneous reduction of GO that can facilitate the production of 2D hybrid materials.

Keywords

2D Transition metal dichalcogenides RGO MoS2 Supercritical fluids
Muniyappa, M., Shastri, M., Shetty, M., Gangaraju, V., Babu Sriramoju, J., Muralidhar, S., … Rangappa, D. (2022). Exfoliation of MoS2-RGO Hybrid 2D Sheets by Supercritical Fluid Process. Asian Journal of Chemistry, 34(4), 1009–1014. https://doi.org/10.14233/ajchem.2022.23707
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