Effect of antimony on the reaction of nanocrystalline SnO2 with oxygen

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• 作者：I. A. Petukhov ; A. A. Zhukova ; M. N. Rumyantseva ; L. L. Meshkov…
• 刊名：Inorganic Materials
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：52
• 期：1
• 页码：1-6
• 全文大小：403 KB
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• 作者单位：I. A. Petukhov (1)
  A. A. Zhukova (2)
  M. N. Rumyantseva (1)
  L. L. Meshkov (1)
  A. M. Gaskov (1)
  
  1. Moscow State University, Moscow, 119991, Russia
  2. Sechenov First State Medical University, Bol鈥檚haya Pirogovskaya, ul. 2/4, Moscow, 119991, Russia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Inorganic Chemistry
  Industrial Chemistry and Chemical Engineering
  Materials Science
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3172

文摘

Nanocrystalline antimony-doped ([Sb]/([Sb] + [Sn]) = 0鈥? at %) SnO₂ powders have been synthesized by coprecipitation from solution. The composition, crystal structure, and microstructural parameters of the powders, as well as the antimony distribution in them, have been studied by laser mass spectrometry, X-ray diffraction, low-temperature nitrogen adsorption measurements, and IR spectroscopy. The reaction of the synthesized materials with oxygen has been studied in situ by electrical conductance measurements. Oxygen chemisorption on the surface of unmodified SnO₂ leads to predominant formation of the molecular species O_2(ads) -. Increasing the Sb concentration in the SnO2鈥筍b鈥?samples increases the fraction of the monatomic species O_2(ads) -, which can be explained in terms of a combination of crystal-chemical and electronic factors. Original Russian Text 漏 I.A. Petukhov, A.A. Zhukova, M.N. Rumyantseva, L.L. Meshkov, A.M. Gaskov, 2016, published in Neorganicheskie Materialy, 2016, Vol. 52, No. 1, pp. 3鈥?.