Selective formation of ethene from CO hydrogenation reaction over IN2O3-CeO2, -La2O3, and -Y2O3 mixed oxide catalysts.
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概要
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CO hydrogenation over mixed oxides of 3A and 4A Groups (Y<SUB>2</SUB>O<SUB>3</SUB>, La<SUB>2</SUB>O<SUB>3</SUB>, CeO<SUB>2</SUB>, and ZrO<SUB>2</SUB>) with 3B Group (Al<SUB>2</SUB>O<SUB>3</SUB>, Ga<SUB>2</SUB>O<SUB>3</SUB>, and In<SUB>2</SUB>O<SUB>3</SUB>) was carried out. The addition of Ga<SUB>2</SUB>O<SUB>3</SUB> or In<SUB>2</SUB>O<SUB>3</SUB> to Y<SUB>2</SUB>O<SUB>3</SUB>, La<SUB>2</SUB>O<SUB>3</SUB>, and CeO<SUB>2</SUB> enhances the formation of light alkenes. An In<SUB>2</SUB>O<SUB>3</SUB>–CeO<SUB>2</SUB> catalyst shows the highest selectivity (43%) for ethene with the lowest selectivity (0.5%) for ethane in total hydrocarbons produced. The addition of In<SUB>2</SUB>O<SUB>3</SUB> to CeO<SUB>2</SUB> results in an increase in activity for the CO hydrogenation reaction. From the results of an ethene hydrogenation reaction over mixed oxide catalysts, the high selectivity for alkene formation over In<SUB>2</SUB>O<SUB>3</SUB>-containing catalysts is due to a suppression of alkene hydrogenation by the addition of In<SUB>2</SUB>O<SUB>3</SUB>. Indium in CeO<SUB>2</SUB> is highly dispersed while keeping an oxidation state of +1 or +3 under the reaction conditions.
- 公益社団法人 日本化学会の論文
著者
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Domen Kazunari
Research Laboratory Of Resources Utilization Tokyo Institute Of Technology
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Onishi Takaharu
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Arai Toru
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Maruya Ken-ich
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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