A Comparative Analysis of Catalysts for the Preparation of Germanium through Hydrogen Reduction of Germanium Tetrachloride |
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| Authors: | A. V. Kadomtseva A. M. Ob”edkov N. M. Semenov B. S. Kaverin K. V. Kremlev S. A. Gusev P. A. Yunin |
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| Affiliation: | 1.Volga Region Medical Research University,Russian Federation Ministry of Health Care,Nizhny Novgorod,Russia;2.Razuvaev Institute of Organometallic Chemistry,Russian Academy of Sciences,Nizhny Novgorod,Russia;3.Institute for Physics of Microstructures,Russian Academy of Sciences,Kstovskii raion, Nizhny Novgorod oblast,Russia |
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| Abstract: | We have synthesized catalysts for the hydrogen reduction of germanium tetrachloride: a catalyst based on multiwalled carbon nanotubes and a hybrid catalyst based on multiwalled carbon nanotubes whose surface was decorated with copper-containing nanoparticles. The hybrid catalyst has been characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results demonstrate that it consists of multiwalled carbon nanotubes whose surface is decorated with copper nanoparticles in a cuprous oxide shell (Cu2O/Cu/MWCNTs). The catalytic activity of the hybrid catalyst exceeds that of the as-prepared MWCNTs. The use of the Cu2O/Cu/MWCNT hybrid catalyst as a catalyst for the hydrogen reduction of germanium tetrachloride allows the reaction temperature to be lowered and ensures 95.7% germanium tetrachloride conversion at 873 K. |
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