Simple and Fast Approach for Synthesis of Reduced Graphene Oxide–MoS₂ Hybrids for Room Temperature Gas Detection

Abstract

The combination of two highly versatile materials as reduced graphene oxide (rGO) and molybdenum disulfide (MoS 2 ) forms the layered rGO-MoS 2 hybrids that have great potential for sensing applications. In this paper, we developed a cost-effective, time-saving, and efficient microwave-assisted method to exfoliate rGO and MoS 2 nanosheets in a powder mixture for the formation of rGO-MoS 2 hybrids. The formation of hybrids with a combination of organic and inorganic 2-D layered materials offers new possibilities for the development of gas sensitive materials. The applied microwave treatment is a simple and fast process for the large-scale synthesis of rGO-MoS 2 hybrids. The synthesized rGO-MoS 2 hybrids were characterized by X-ray diffraction, scanning electron microscope, energy dispersive X-ray spectroscopy, Raman, X-ray photoelectron spectroscopy, and thermogravimetric analyses to determine the phase structure, surface morphology, defect formation, binding energy, thermal stability and so on. The synthesized rGO-MoS 2 hybrids were tested for sensing application and showed the good performance to detect gases such as O 2 , N 2 , and NH 3 at room temperature.

Microwave as a Tool for Synthesis of Carbon-Based Electrodes for Energy Storage

“…using various MW routes. Such kinds of MW-synthesized carbon materials have been extensively investigated for various applications, including EMI shielding, fuel cells, field emission devices, catalysts, sensors, hydrogen storage, etc. − Among the electrochemical energy storage systems, SCs and batteries are considered to be the top devices, in terms of performance and development potential. As expected in this context, the MW approach has been extensively applied for development of both SC and battery electrodes.…”

Research Progress of MoS2Composite rGO Material in Gas Sensor

“…It is difficult for intrinsic MoS 2 to overcome its defects in conductivity and structural strength, so it is difficult to further expand the application prospect of intrinsic MoS 2 . The layered composite structure composed of MoS 2 /rGO materials effectively improves the gas sensing performance of the materials [1][2][3][4][5] . The prepared MoS 2 composite graphene can be encapsulated in the button cell by the cell preparation process to characterize its electrochemical performance.…”

Fabrication of Graphene/Molybdenum Disulfide Composites and Their Usage as Actuators for Electrochemical Sensors and Biosensors

“…Some alternative approaches which cannot be placed within above-mentioned categories were developed. A very facile method for Gr/MoS 2 fabrication was developed by Kumar et al [47]. First, they prepared graphite oxide solution by continuous magnetic stirring and sonication of graphite oxide in ethanol.…”