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In SituCoupled Raman and Impedance Measurements of the Reactivity of Nanocrystalline SnO2versus H2S

✍ Scribed by T. Pagnier; M. Boulova; A. Galerie; A. Gaskov; G. Lucazeau

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 345 KB
Volume: 143
Category: Article
ISSN: 0022-4596
DOI: 10.1006/jssc.1998.8087

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✦ Synopsis

Nanocrystalline SnO 2 produced in different ways has been subjected to H 2 S at 100°C. The formation of SnS x was deduced from Raman spectra and correlated with the changes in electrical resistance. When the initial resistance of the sample was high, adsorbed SO 4 was observed. The agreement of these results with available thermodynamic data and the actual theory of SnO 2 sensitivity to H 2 S is discussed.

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