Room temperature nanoarchitectonics of ultrafine SnO 2 and Cu-doped SnO 2 crystallites for advanced H 2 S sensing

We report a generalized route for synthesizing pure SnO 2 and Cu (1 and 3 at%) doped SnO 2 at room temperature with crystallite size in a nanometer range of 1.0–3.0 nm using CuCl 2 , nitric acid and Sn metal. The structural properties of these samples were characterized using X-ray diffraction (XRD)...

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Bibliographic Details
Published in:New journal of chemistry 2024-09, Vol.48 (35), p.15302-15306
Main Authors: Singh, Atom Rajiv, Srivastava, Manas, Girija, K. G., Ningthoujam, R. S., Tyagi, A. K.
Format: Article
Language:English
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Summary:We report a generalized route for synthesizing pure SnO 2 and Cu (1 and 3 at%) doped SnO 2 at room temperature with crystallite size in a nanometer range of 1.0–3.0 nm using CuCl 2 , nitric acid and Sn metal. The structural properties of these samples were characterized using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The open system was used to monitor heat generation. Thin films of SnO 2 and SnO 2 : x Cu nanocrystallites were prepared using a mixture of surfactant (docusate sodium salt), SnO 2 , water and cyclohexane. H 2 S sensing at room temperature was performed. The Cu-doped SnO 2 sample showed higher sensitivity than pure SnO 2 , and its sensitivity was more than that of the reported ones.
ISSN:1144-0546
1369-9261
DOI:10.1039/D4NJ02669A