Autothermal Reforming of Methane Over CeO₂-ZrO₂-La₂O₃ Supported Rh Catalyst
Autothermal reforming of methane was studied over La-doped ceria-zirconia-supported Rh catalysts. The CH₄ conversion increased from 49 to 60% on increasing the content of La³⁺ from 5 to 15%, while further increase in the La³⁺ content led to a slight decrease on both CH₄ conversion and H₂ selectivity...
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| Veröffentlicht in: | Catalysis letters 2009-09, Vol.131 (3-4), p.474-479 |
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| creator | Cao, Lei Ni, Changjun Yuan, Zhongshan Wang, Shudong |
| description | Autothermal reforming of methane was studied over La-doped ceria-zirconia-supported Rh catalysts. The CH₄ conversion increased from 49 to 60% on increasing the content of La³⁺ from 5 to 15%, while further increase in the La³⁺ content led to a slight decrease on both CH₄ conversion and H₂ selectivity. H₂-TPR and UV-vis DRS spectrum showed that the interaction between Rh and the support was enhanced by increasing the content of La. We speculated that a so-called “Rh-La interfacial species” was formed on the surface of the support, which played an important role in catalytic activity. The balance between exposed Rh and the “Rh-La interfacial species” was necessary to improve the catalytic activity. Upon increasing the Rh loading on 15% La-doped ceria-zirconia support, the balance was built, i.e., CH₄ conversion increased from ~60 to 69% by increasing Rh loading from 0.1 to 0.5 wt% and only 2% conversion was elevated by doubling the Rh loading from 0.5 to 1.0 wt%. |
| doi_str_mv | 10.1007/s10562-009-9888-z |
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The CH₄ conversion increased from 49 to 60% on increasing the content of La³⁺ from 5 to 15%, while further increase in the La³⁺ content led to a slight decrease on both CH₄ conversion and H₂ selectivity. H₂-TPR and UV-vis DRS spectrum showed that the interaction between Rh and the support was enhanced by increasing the content of La. We speculated that a so-called “Rh-La interfacial species” was formed on the surface of the support, which played an important role in catalytic activity. The balance between exposed Rh and the “Rh-La interfacial species” was necessary to improve the catalytic activity. Upon increasing the Rh loading on 15% La-doped ceria-zirconia support, the balance was built, i.e., CH₄ conversion increased from ~60 to 69% by increasing Rh loading from 0.1 to 0.5 wt% and only 2% conversion was elevated by doubling the Rh loading from 0.5 to 1.0 wt%.</description><identifier>ISSN: 1011-372X</identifier><identifier>EISSN: 1572-879X</identifier><identifier>DOI: 10.1007/s10562-009-9888-z</identifier><language>eng</language><publisher>Boston: Boston : Springer US</publisher><subject>Catalysis ; Catalysts ; Catalytic activity ; Cerium oxides ; Chemistry ; Chemistry and Materials Science ; Conversion ; Exact sciences and technology ; General and physical chemistry ; Industrial Chemistry/Chemical Engineering ; Lanthanum oxides ; Methane ; Organometallic Chemistry ; Physical Chemistry ; Reforming ; Rhodium ; Selectivity ; Theory of reactions, general kinetics. Catalysis. 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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-189a6eb0d6d928e5f8e500f1e4b528fa40bef863d420824c49f2b691acb4f6053</citedby><cites>FETCH-LOGICAL-c337t-189a6eb0d6d928e5f8e500f1e4b528fa40bef863d420824c49f2b691acb4f6053</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10562-009-9888-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10562-009-9888-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22005553$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Cao, Lei</creatorcontrib><creatorcontrib>Ni, Changjun</creatorcontrib><creatorcontrib>Yuan, Zhongshan</creatorcontrib><creatorcontrib>Wang, Shudong</creatorcontrib><title>Autothermal Reforming of Methane Over CeO₂-ZrO₂-La₂O₃ Supported Rh Catalyst</title><title>Catalysis letters</title><addtitle>Catal Lett</addtitle><description>Autothermal reforming of methane was studied over La-doped ceria-zirconia-supported Rh catalysts. The CH₄ conversion increased from 49 to 60% on increasing the content of La³⁺ from 5 to 15%, while further increase in the La³⁺ content led to a slight decrease on both CH₄ conversion and H₂ selectivity. H₂-TPR and UV-vis DRS spectrum showed that the interaction between Rh and the support was enhanced by increasing the content of La. We speculated that a so-called “Rh-La interfacial species” was formed on the surface of the support, which played an important role in catalytic activity. The balance between exposed Rh and the “Rh-La interfacial species” was necessary to improve the catalytic activity. Upon increasing the Rh loading on 15% La-doped ceria-zirconia support, the balance was built, i.e., CH₄ conversion increased from ~60 to 69% by increasing Rh loading from 0.1 to 0.5 wt% and only 2% conversion was elevated by doubling the Rh loading from 0.5 to 1.0 wt%.</description><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Cerium oxides</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Conversion</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Lanthanum oxides</subject><subject>Methane</subject><subject>Organometallic Chemistry</subject><subject>Physical Chemistry</subject><subject>Reforming</subject><subject>Rhodium</subject><subject>Selectivity</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Zirconium dioxide</subject><issn>1011-372X</issn><issn>1572-879X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kF1LwzAYhYsoOKc_wCsL4mX0Tdq0yeUofsFksDkY3oS0TfZB19akFbbL-U_9JWZ26J0XyXsg5zxvOJ53ieEWA8R3FgONCALgiDPG0PbI62EaE8RiPjt2GjBGQUxmp96ZtStwxhjznjcZtE3VLJRZy8IfK12Z9bKc-5X2X1SzkKXyRx_K-Ikafe126M38jKF0t1Of_qSt68o0KvfHCz-RjSw2tjn3TrQsrLo4zL43fbh_TZ7QcPT4nAyGKAuCuEGYcRmpFPIo54Qpqt0B0FiFKSVMyxBSpVkU5CEBRsIs5JqkEccyS0MdAQ363nXHrU313irbiFXVmtKtFIRQxilQHjgX7lyZqaw1SovaLNfSbAQGse9OdN0JV4nYdye2LnNzIEubyUIbWWZL-xskBIBSumeTzmfdUzlX5u8H_8GvupCWlZBz48DTCQEcAI4YZk58A_xmipA</recordid><startdate>20090901</startdate><enddate>20090901</enddate><creator>Cao, Lei</creator><creator>Ni, Changjun</creator><creator>Yuan, Zhongshan</creator><creator>Wang, Shudong</creator><general>Boston : Springer US</general><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20090901</creationdate><title>Autothermal Reforming of Methane Over CeO₂-ZrO₂-La₂O₃ Supported Rh Catalyst</title><author>Cao, Lei ; Ni, Changjun ; Yuan, Zhongshan ; Wang, Shudong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-189a6eb0d6d928e5f8e500f1e4b528fa40bef863d420824c49f2b691acb4f6053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Catalysis</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Cerium oxides</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Conversion</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Lanthanum oxides</topic><topic>Methane</topic><topic>Organometallic Chemistry</topic><topic>Physical Chemistry</topic><topic>Reforming</topic><topic>Rhodium</topic><topic>Selectivity</topic><topic>Theory of reactions, general kinetics. 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Nomenclature, chemical documentation, computer chemistry</topic><topic>Zirconium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cao, Lei</creatorcontrib><creatorcontrib>Ni, Changjun</creatorcontrib><creatorcontrib>Yuan, Zhongshan</creatorcontrib><creatorcontrib>Wang, Shudong</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Catalysis letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cao, Lei</au><au>Ni, Changjun</au><au>Yuan, Zhongshan</au><au>Wang, Shudong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Autothermal Reforming of Methane Over CeO₂-ZrO₂-La₂O₃ Supported Rh Catalyst</atitle><jtitle>Catalysis letters</jtitle><stitle>Catal Lett</stitle><date>2009-09-01</date><risdate>2009</risdate><volume>131</volume><issue>3-4</issue><spage>474</spage><epage>479</epage><pages>474-479</pages><issn>1011-372X</issn><eissn>1572-879X</eissn><abstract>Autothermal reforming of methane was studied over La-doped ceria-zirconia-supported Rh catalysts. The CH₄ conversion increased from 49 to 60% on increasing the content of La³⁺ from 5 to 15%, while further increase in the La³⁺ content led to a slight decrease on both CH₄ conversion and H₂ selectivity. H₂-TPR and UV-vis DRS spectrum showed that the interaction between Rh and the support was enhanced by increasing the content of La. We speculated that a so-called “Rh-La interfacial species” was formed on the surface of the support, which played an important role in catalytic activity. The balance between exposed Rh and the “Rh-La interfacial species” was necessary to improve the catalytic activity. Upon increasing the Rh loading on 15% La-doped ceria-zirconia support, the balance was built, i.e., CH₄ conversion increased from ~60 to 69% by increasing Rh loading from 0.1 to 0.5 wt% and only 2% conversion was elevated by doubling the Rh loading from 0.5 to 1.0 wt%.</abstract><cop>Boston</cop><pub>Boston : Springer US</pub><doi>10.1007/s10562-009-9888-z</doi><tpages>6</tpages></addata></record> |
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| subjects | Catalysis Catalysts Catalytic activity Cerium oxides Chemistry Chemistry and Materials Science Conversion Exact sciences and technology General and physical chemistry Industrial Chemistry/Chemical Engineering Lanthanum oxides Methane Organometallic Chemistry Physical Chemistry Reforming Rhodium Selectivity Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Zirconium dioxide |
| title | Autothermal Reforming of Methane Over CeO₂-ZrO₂-La₂O₃ Supported Rh Catalyst |
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