Gas Sensing Properties of Graphene-Rb-Based Sensor for Liquefied Petroleum Gas and Hydrogen

Authors

  • Shivani A. Singh  Nano Material Application Lab., Department of Physics, Institute of Science, Madam Kama Road, Fort, Mumbai, Maharashtra, India
  • Pravin. S. More  Nano Material Application Lab., Department of Physics, Institute of Science, Madam Kama Road, Fort, Mumbai, Maharashtra, India

DOI:

https://doi.org//10.32628/IJSRST218374

Keywords:

LPG Sensor; Hydrogen Sensor; Rb-modified Graphene; Sensitivity; Selectivity.

Abstract

Rb-modified graphene powder was prepared by the chemical route synthesis method in this paper. X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the composition of the crystalline phase and the morphology of the prepared gas-sensitive materials, respectively. In particular, the study focused on the sensing behaviours of Graphene-Rb-based sensor towards power transformer fault gases such as hydrogen and liquefied petroleum gas. The molar concentration (M) level of Rb additive was varied systematically from 0.5 M to 2.0 M. The highest value of sensitivity factor (SF) of ~ 200 for 1.0M Rb-modified graphene to LPG gas was obtained at considerably lower temperature of 390K and for Hydrogen gas the highest value of sensitivity factor (SF) of ~ 225 for 1.0M Rb-modified graphene at considerably lower temperature of 380K. The selectivity value is found to be maximum ~ 16 for 1.5M of Rb-modified graphene for LPG and ~ 32 for 2.0M of Rb-modified graphene for Hydrogen gas.

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International Journal of Scientific Research in Science and Technology

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Published

2021-06-30

Issue

Volume 8, Issue 3, May-June-2021

Section

Research Articles

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How to Cite

[1]
Shivani A. Singh, Pravin. S. More, " Gas Sensing Properties of Graphene-Rb-Based Sensor for Liquefied Petroleum Gas and Hydrogen, International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011, Volume 8, Issue 3, pp.353-359, May-June-2021. Available at doi : https://doi.org/10.32628/IJSRST218374