Aero-gel assisted synthesis of anatase TiO2 nanoparticles for humidity sensing application

Aero-gel based one-pot synthesis of anatase phase TiO2 nanoparticles having a high surface area of 125 m2 g−1 has been reported in this work. The humidity sensing perfomance of the obtained porous TiO2 nanoparticles exhibits a quick response (2 s) and fast recovery (1.5 s), negligible hysteresis (&l...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 47; no. 18; pp. 6293 - 6298
Main Authors Poonia, Ekta, Mishra, Prashant Kumar, Kiran, Vijay, Sangwan, Jasbir, Kumar, Rakesh, Rai, Pramod Kumar, Tomer, Vijay K
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 2018
Subjects
Anatase
Humidity
Nanoparticles
Synthesis
Titanium dioxide
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Summary:Aero-gel based one-pot synthesis of anatase phase TiO2 nanoparticles having a high surface area of 125 m2 g−1 has been reported in this work. The humidity sensing perfomance of the obtained porous TiO2 nanoparticles exhibits a quick response (2 s) and fast recovery (1.5 s), negligible hysteresis (<1%) and good stability in the 11–98%RH range. The relationship between %RH and resistance was found to be linear while the sensitivity increases with increase in %RH.
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ISSN:1477-9226
1477-9234
DOI:10.1039/c8dt00106e