ethanol vapor

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• Published Subscription Original Research 22 Feb 2026

  Mn Doping–Induced Enhancement of Ethanol Gas Sensitivity in CuO/Cu₂O/Cu Composites

  By P. Samarasekara*, D.P. Gunathilake, D.M.S.N. Kolugala, P.G.D.C.K. Karunarathna

  Abstract: A composite of CuO/Cu2O/Cu was synthesized by heating cupric acetate up to 600 °C for 2 hours in air. The properties of pure CuO films and CuO/Cu2O/Cu films were compared. Films were fabricated by the doctor blade method. Polyethylene glycol was used as a binder to prepare films. Mn was doped to composite to enhance the gas sensing properties. Compositions of Mn doped samples were confirmed using XRFS. According to …

  Published in Journal of Materials & Metallurgical Engineering · Vol. 16, Issue 1, 2026 · pp. 52–61 Read article →

• Published Subscription Original Research 20 Jun 2025

  Enhancement of Gas Sensitivity of Composites of Carbon Derived from Rubber Tree and SnO2 to Detect Ethanol Vapor at Room Temperature

  By W.W.S.S.R. Fernando, Chathuranga Rathnayake1, P.G.D.C.K. Karunarathna, P. Samarasekara

  Abstract: Films of composites of activated carbon powder prepared from saw dust derived from core of rubber tree (Hevea Brasiliensis) and tin oxide (SnO2) were fabricated using the doctor blade method. Carbon powder was activated using phosphoric acid at 500°C for 45 minutes. The weight ratio carbon/SnO2 varied from 0 to 12% in steps of 2. The structural, optical and morphological properties of films were investigated using XRD patterns, UV-visible spectrums …

  Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 12, Issue 2, 2025 · pp. 31–44 Read article →