Evacuation at elevated temperatures to enhance the catalytic activity of Rh/TiO_2 for the hydrogenation of CO
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概要
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Effects of the evacuation treatment at elevated temperature was investigated to enhance the catalytic activity of Rh/TiO_2 in the early stage of the hydrogenation of CO (CO/H_2=26.7/53.3kp) at 523K. The evacuation at 773K after the reduction of RhCl_3/TiO_2 at 673K provided the highest initial activity of 1810mmol CO/g-Rh・h at 523K, both higher or lower evacuation temperatures decreasing the activity to two thirds. The extensive removal of the chlorine involved in the catalyst may allow the most favorable influences of TiO_2 on Rh catalyst through better dispersion and electronic interaction since Rh/TiO_2 prepared from Rh (NO_3)_3 exhibited much inferior activity by the same evacuation treatment.
- 九州大学の論文
- 1987-12-28
著者
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MOCHIDA Isao
Institute of Advanced Material Study, Kyushu University
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Fujitsu H
Institute Of Advanced Material Study Kyushu University
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- Evacuation at elevated temperatures to enhance the catalytic activity of Rh/TiO_2 for the hydrogenation of CO