Dehydrogenation of Methylcyclohexane over Zinc-containing Platinum/Alumina Catalysts
The catalytic performance of Pt supported on Al2O3, TiO2, SiO2 and activated carbon (AC) was investigated for the dehydrogenation of methylcyclohexane (MCH). The additive effects of Ce, Ga, Mn, Sn, and Zn on the Pt catalysts were also studied. Pt was highly dispersed on Al2O3 as an effective support...
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| Veröffentlicht in: | Journal of the Japan Petroleum Institute 2018/11/01, Vol.61(6), pp.350-356 |
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| container_title | Journal of the Japan Petroleum Institute |
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| creator | Mori, Kousuke Kanda, Yasuharu Uemichi, Yoshio |
| description | The catalytic performance of Pt supported on Al2O3, TiO2, SiO2 and activated carbon (AC) was investigated for the dehydrogenation of methylcyclohexane (MCH). The additive effects of Ce, Ga, Mn, Sn, and Zn on the Pt catalysts were also studied. Pt was highly dispersed on Al2O3 as an effective support, and was active for the dehydrogenation reaction. Sequential impregnation of Zn and Pt into Al2O3 in this order resulted in greatly increased MCH dehydrogenation activity and decreased methane selectivity, which were dependent on the amount of the loaded Zn. FT-IR of adsorbed CO, TEM, and XRD measurements revealed that dispersion of Pt on Al2O3 was little changed by loading Zn, and electron donation from Zn to Pt occurred. Therefore, the high dispersion and electron-donating ability of Pt in Zn–Pt/Al2O3 are responsible for the excellent catalytic performance. In contrast, addition of Zn to AC-supported Pt catalyst reduced the catalytic activity probably due to the formation of aggregated PtZn alloy particles on the support. |
| doi_str_mv | 10.1627/jpi.61.350 |
| format | Article |
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The additive effects of Ce, Ga, Mn, Sn, and Zn on the Pt catalysts were also studied. Pt was highly dispersed on Al2O3 as an effective support, and was active for the dehydrogenation reaction. Sequential impregnation of Zn and Pt into Al2O3 in this order resulted in greatly increased MCH dehydrogenation activity and decreased methane selectivity, which were dependent on the amount of the loaded Zn. FT-IR of adsorbed CO, TEM, and XRD measurements revealed that dispersion of Pt on Al2O3 was little changed by loading Zn, and electron donation from Zn to Pt occurred. Therefore, the high dispersion and electron-donating ability of Pt in Zn–Pt/Al2O3 are responsible for the excellent catalytic performance. In contrast, addition of Zn to AC-supported Pt catalyst reduced the catalytic activity probably due to the formation of aggregated PtZn alloy particles on the support.</description><identifier>ISSN: 1346-8804</identifier><identifier>EISSN: 1349-273X</identifier><identifier>DOI: 10.1627/jpi.61.350</identifier><language>eng</language><publisher>Tokyo: The Japan Petroleum Institute</publisher><subject>Activated carbon ; Additives ; Aluminum oxide ; Catalysis ; Catalysts ; Catalytic activity ; Dehydrogenation ; Dispersion ; Manganese ; Methylcyclohexane ; Platinum ; Platinum catalyst ; Selectivity ; Silica ; Silicon dioxide ; Titanium dioxide ; Zinc ; Zinc addition ; Zinc plating</subject><ispartof>Journal of the Japan Petroleum Institute, 2018/11/01, Vol.61(6), pp.350-356</ispartof><rights>2018 by The Japan Petroleum Institute</rights><rights>Copyright Japan Science and Technology Agency 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c376t-21dfbea26e43ee1af86e3ba210b2cf5122fb16b5ae4ba80833500573ab543ab73</citedby><cites>FETCH-LOGICAL-c376t-21dfbea26e43ee1af86e3ba210b2cf5122fb16b5ae4ba80833500573ab543ab73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,27924,27925</link.rule.ids></links><search><creatorcontrib>Mori, Kousuke</creatorcontrib><creatorcontrib>Kanda, Yasuharu</creatorcontrib><creatorcontrib>Uemichi, Yoshio</creatorcontrib><title>Dehydrogenation of Methylcyclohexane over Zinc-containing Platinum/Alumina Catalysts</title><title>Journal of the Japan Petroleum Institute</title><addtitle>J. Jpn. Petrol. Inst.</addtitle><description>The catalytic performance of Pt supported on Al2O3, TiO2, SiO2 and activated carbon (AC) was investigated for the dehydrogenation of methylcyclohexane (MCH). The additive effects of Ce, Ga, Mn, Sn, and Zn on the Pt catalysts were also studied. Pt was highly dispersed on Al2O3 as an effective support, and was active for the dehydrogenation reaction. Sequential impregnation of Zn and Pt into Al2O3 in this order resulted in greatly increased MCH dehydrogenation activity and decreased methane selectivity, which were dependent on the amount of the loaded Zn. FT-IR of adsorbed CO, TEM, and XRD measurements revealed that dispersion of Pt on Al2O3 was little changed by loading Zn, and electron donation from Zn to Pt occurred. Therefore, the high dispersion and electron-donating ability of Pt in Zn–Pt/Al2O3 are responsible for the excellent catalytic performance. In contrast, addition of Zn to AC-supported Pt catalyst reduced the catalytic activity probably due to the formation of aggregated PtZn alloy particles on the support.</description><subject>Activated carbon</subject><subject>Additives</subject><subject>Aluminum oxide</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Dehydrogenation</subject><subject>Dispersion</subject><subject>Manganese</subject><subject>Methylcyclohexane</subject><subject>Platinum</subject><subject>Platinum catalyst</subject><subject>Selectivity</subject><subject>Silica</subject><subject>Silicon dioxide</subject><subject>Titanium dioxide</subject><subject>Zinc</subject><subject>Zinc addition</subject><subject>Zinc plating</subject><issn>1346-8804</issn><issn>1349-273X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9kE1Lw0AQhhdRsFYv_oKANyHtfiSb9OCh1E-o6KGCeFkm20mTku7W3Y2Yf2-0tZeZYXjmfZmXkEtGR0zybLze1iPJRiKlR2TARDKJeSbej_9mGec5TU7JmfdrSgVPZTYgi1usuqWzKzQQamsiW0bPGKqu0Z1ubIXfYDCyX-iij9roWFsToDa1WUWvTX9h2s142rSb2kA0gwBN54M_JyclNB4v9n1I3u7vFrPHeP7y8DSbzmMtMhlizpZlgcAlJgKRQZlLFAVwRguuy5RxXhZMFilgUkBOc9G_RdNMQJEmfcnEkFztdLfOfrbog1rb1pneUnEu0owmEzrpqesdpZ313mGptq7egOsUo-o3NdWnpiRTvXwP3-zgtQ-wwgMKLtS6wX9U7vnDXlfgFBrxA26Td9g</recordid><startdate>201811</startdate><enddate>201811</enddate><creator>Mori, Kousuke</creator><creator>Kanda, Yasuharu</creator><creator>Uemichi, Yoshio</creator><general>The Japan Petroleum Institute</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>201811</creationdate><title>Dehydrogenation of Methylcyclohexane over Zinc-containing Platinum/Alumina Catalysts</title><author>Mori, Kousuke ; Kanda, Yasuharu ; Uemichi, Yoshio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c376t-21dfbea26e43ee1af86e3ba210b2cf5122fb16b5ae4ba80833500573ab543ab73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Activated carbon</topic><topic>Additives</topic><topic>Aluminum oxide</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Dehydrogenation</topic><topic>Dispersion</topic><topic>Manganese</topic><topic>Methylcyclohexane</topic><topic>Platinum</topic><topic>Platinum catalyst</topic><topic>Selectivity</topic><topic>Silica</topic><topic>Silicon dioxide</topic><topic>Titanium dioxide</topic><topic>Zinc</topic><topic>Zinc addition</topic><topic>Zinc plating</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mori, Kousuke</creatorcontrib><creatorcontrib>Kanda, Yasuharu</creatorcontrib><creatorcontrib>Uemichi, Yoshio</creatorcontrib><collection>CrossRef</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of the Japan Petroleum Institute</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mori, Kousuke</au><au>Kanda, Yasuharu</au><au>Uemichi, Yoshio</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dehydrogenation of Methylcyclohexane over Zinc-containing Platinum/Alumina Catalysts</atitle><jtitle>Journal of the Japan Petroleum Institute</jtitle><addtitle>J. Jpn. Petrol. Inst.</addtitle><date>2018-11</date><risdate>2018</risdate><volume>61</volume><issue>6</issue><spage>350</spage><epage>356</epage><pages>350-356</pages><issn>1346-8804</issn><eissn>1349-273X</eissn><abstract>The catalytic performance of Pt supported on Al2O3, TiO2, SiO2 and activated carbon (AC) was investigated for the dehydrogenation of methylcyclohexane (MCH). The additive effects of Ce, Ga, Mn, Sn, and Zn on the Pt catalysts were also studied. Pt was highly dispersed on Al2O3 as an effective support, and was active for the dehydrogenation reaction. Sequential impregnation of Zn and Pt into Al2O3 in this order resulted in greatly increased MCH dehydrogenation activity and decreased methane selectivity, which were dependent on the amount of the loaded Zn. FT-IR of adsorbed CO, TEM, and XRD measurements revealed that dispersion of Pt on Al2O3 was little changed by loading Zn, and electron donation from Zn to Pt occurred. Therefore, the high dispersion and electron-donating ability of Pt in Zn–Pt/Al2O3 are responsible for the excellent catalytic performance. In contrast, addition of Zn to AC-supported Pt catalyst reduced the catalytic activity probably due to the formation of aggregated PtZn alloy particles on the support.</abstract><cop>Tokyo</cop><pub>The Japan Petroleum Institute</pub><doi>10.1627/jpi.61.350</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Activated carbon Additives Aluminum oxide Catalysis Catalysts Catalytic activity Dehydrogenation Dispersion Manganese Methylcyclohexane Platinum Platinum catalyst Selectivity Silica Silicon dioxide Titanium dioxide Zinc Zinc addition Zinc plating |
| title | Dehydrogenation of Methylcyclohexane over Zinc-containing Platinum/Alumina Catalysts |
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