Synthesis of NiO/TiO₂ Binary Nano Composite for the Enhancement of Gas Sensing Properties

Bhargavi Ks, Anindita Bose and Naveen Cs
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Bhargavi Ks: Presidency University, India
Anindita Bose: Presidency University, India
Naveen Cs: Presidency University, India

European Journal of Applied Physics, 2023, vol. 5, issue 5, 1-7

Abstract: The rapid development of electronic devices used in detecting noxious gases has made gas sensors more and more important. The semiconducting metal oxides’ ability to detect gases is a result of their reactions with the gases in the environment, which change the semiconductor’s resistance. In this study, a composite metal oxide material made of NiO and TiO2 with different doping concentrations of (1, 3, 5, 7) is synthesized using the sol-gel process. A binary compound with excellent crystallization is obtained post 500° calcination. SEM, XRD and FTIR were used to evaluate the morphological fluctuations and the phase identification of NiO/TiO2 nano composite. The butane gas is found to respond well in the concentration ranges of 500 to 3000 ppm, respectively, at temperatures 373 to 573 K as well as at ambient temperature.

Keywords: Gas sensing; Metal Oxides; Nano Composites; Sol gel synthesis (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:epw:physic:v:5:y:2023:i:5:id:11261

DOI: 10.24018/ejphysics.2023.5.5.261

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