Fabrication of H2S Gas Sensor Based on Ppy/CuO and Ppy/SnO2 Nanocomposites at Room Temperature

Kabel, Khalid; Al-Sabagh, Ahmed; Sharara, Tamer; Badawi, Abdelfattah Mohsen; Abdel-Rahman, Adel; Gado, Walaa

doi:10.21608/ejchem.2020.21041.2257

Fabrication of H2S Gas Sensor Based on Ppy/CuO and Ppy/SnO2 Nanocomposites at Room Temperature

Document Type : Original Article

Authors

¹ petroleum applications department, egyptian petroleum research institute

² Egyptian petroleum research institute, Nasr city, Cairo, Egypt

³ Egyptian Petroleum Research Institute, Cairo, Egypt

⁴ Petrochemicals Department, Egyptian Petroleum Research Institute

⁵ Chemistry Department, Faculty of Science, Menoufia Univesrity Dean of the faculty

⁶ petrochemicals department, Egyptian Petroleum Research Institute

10.21608/ejchem.2020.21041.2257

Abstract

The existence of Hydrogen sulfide (H2S) during the petroleum production and its high risks is the main reason to develop a smart, cheap and flexible device for H2S monitoring. This article is focusing on developing electrochemical sensors, which seems to have a promising potential. Polypyrrole (Ppy) and its two composites were prepared; Ppy doped with Cupper oxide (CuO) nanoparticles (Ppy/CuO) and Ppy doped with Tin oxide (SnO2) nanoparticles (Ppy/SnO2) via in-situ polymerization approach. The characterizations of these nanocomposites were confirmed by Fourier Transform Infrared spectroscopy (FTIR), X-ray diffraction (XRD), Dynamic Light Scattering (DLS) and High-Resolution Transition Electron Microscopy (HR-TEM). The testing of these nanocomposites towards the monitoring of H2S gas at different concentrations was carried out in the term of electrical resistance changes. From the data; it was found that the response at 1000 ppm H2S gas concentration was ranked as; Ppy 0.12 %. Ppy/CuO 4.7 %. Ppy/SnO2 53.2 %.

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