Participation of molecular hydrogen-originated protonic acid sites in acid-catalyzed reactions |
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| Authors: | Hideshi Hattori Takayuki Yamada Tetsuya Shishido |
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| Affiliation: | (1) Center for Advanced Research of Energy Technology, Hokkaido University, 060 Sapporo, Japan |
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| Abstract: | The formation of protons from molecular hydrogen was observed by IR of adsorbed pyridine for Pt/SO4 2−−ZrO2 when heated in the presence of hydrogen. The promotive effects of hydrogen on skeletal isomerization of alkanes and cumene cracking are rationalized by the formation of protons from hydrogen. The formation of protons and the promotive effects of hydrogen were also observed for other catalysts such as Co.Mo/SiO2−Al2O3 and a physical mixture of Pt/SiO2 and H-ZSM-5. The concept “molecular hydrogen-originated protonic acid site” is proposed as an important and widely applicable concept in acid-catalyzed reactions. |
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