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Dehydrogenation of isopropylbenzene with vanadium-oxide-loaded activated carbon catalyst in the presence of carbon dioxide

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Abstract

Dehydrogenation of isopropylbenzene to α-methylstyrene was carried out using various supported metal oxide catalysts in the presence of carbon dioxide. An activated carbon-supported vanadium oxide catalyst afforded a high activity in carbon dioxide atmosphere: the α-methylstyrene yield in carbon dioxide atmosphere was two times greater than that in an argon atmosphere at 723 K. In order to investigate the role of carbon dioxide in this reaction, we carried out temperature-programmed reduction (TPR) studies using both fresh and used catalysts. The TPR profiles clearly indicate that carbon dioxide could keep the surface of vanadium oxide at a high oxidation state.

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Authors
  1. Yoshihiro Sakurai
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  2. Takamasa Suzaki
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  3. Kiyoharu Nakagawa
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  4. Na-oki Ikenaga
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  5. Toshimitsu Suzuki
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Sakurai, Y., Suzaki, T., Nakagawa, K. et al. Dehydrogenation of isopropylbenzene with vanadium-oxide-loaded activated carbon catalyst in the presence of carbon dioxide. Catalysis Letters 69, 59–64 (2000). https://doi.org/10.1023/A:1019084915149

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  • DOI: https://doi.org/10.1023/A:1019084915149

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