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Synthesis of RGO/SiO2 and Ag/RGO/SiO2 Nanocomposites and Study of Their Sensitivity Towards Humidity

  • A. S. A. Shalaby
  • Sh. Safwat-Mansour
  • Ahmed S. Afify
  • M. Hassan
  • A. Staneva
Conference paper
Part of the NATO Science for Peace and Security Series B: Physics and Biophysics book series (NAPSB)

Abstract

In recent years, many interesting researches published on the study of new nanocomposite materials involves active components such as reduced graphene oxide (RGO), silver nanoparticles (Ag-NPs), and silica, which indicated very interesting properties and applications. The present work demonstrates the preparation of nanocomposite powders with the participation of Ag-NPs, RGO and tetraethyl-orthosilicate (TEOS) using the sol-gel technique. The phase formations are verified by X-ray diffraction analysis. The thermal behavior was studied using differential thermal analysis (DTA/TG) in air. The sensitivity against humidity was tested in a laboratory apparatus made of a thermostatic chamber operating at 25 °C, in which the RH could be varied between 0% and 96%.

Keywords

Reduced graphene oxide Silver nanoparticles Sol-Gel technique Humidity sensor 

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • A. S. A. Shalaby
    • 1
  • Sh. Safwat-Mansour
    • 2
  • Ahmed S. Afify
    • 3
  • M. Hassan
    • 3
    • 4
  • A. Staneva
    • 2
  1. 1.Science and Technology Center of Excellence (STCE)CairoEgypt
  2. 2.University of Chemical Technology and MetallurgySofiaBulgaria
  3. 3.Department of Applied Science and Technology (DISAT)Politecnico di TorinoTorinoItaly
  4. 4.Department of Natural Science, Obour Institute of Engineering and TechnologyCairoEgypt

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