Specific activity of ruthenium for hydrogenation and hydrogenolysis of benzene in relation to metal dispersity |
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Authors: | H. Kubicka and J. Okal |
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Affiliation: | (1) Institute for Low Temperature and Structure Research, Polish Academy of Sciences, Wroclow, Poland |
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Abstract: | The specific activity Vsp of ruthenium supported on -alumina (0.084–0.84 wt.%, average particle size 1=1–7 nm) has been investigated for hydrogenation and hydrogenolysis of benzene at 80–320°C and compared with that of Ru powder of 1>1400 nm. A decrease of Vsp with increasing Ru dispersity was found for both reactions, the decrease having been more pronounced for hydrogenolysis. The effect is considered to be due mainly to an influence of dispersity of supported metal on the mode and extent of benze chemisorption.
(VSp) , - (0,084–0,84 .%, 1=1–7 ), 80–320°C - 1>1400 . VSp , . , -, - . |
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