Effect of heat treatment on the performance of TiO2-Pt/CNT catalysts for methanol electro-oxidation
TiO2-Pt/CNT catalysts before and after heat treatment were prepared. Their catalytic activities for methanol and CO electro-oxidation were studied in detail. The results showed that the proper amount of hydrous TiO2 in TiO2-Pt/CNTs (e.g. heated at 200 deg C for 2h) was favorable for enhancing the ca...
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| Veröffentlicht in: | Electrochimica acta 2008-04, Vol.53 (10), p.3708-3713 |
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| container_title | Electrochimica acta |
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| creator | Song, Huanqiao Qiu, Xinping Li, Fushen |
| description | TiO2-Pt/CNT catalysts before and after heat treatment were prepared. Their catalytic activities for methanol and CO electro-oxidation were studied in detail. The results showed that the proper amount of hydrous TiO2 in TiO2-Pt/CNTs (e.g. heated at 200 deg C for 2h) was favorable for enhancing the catalytic activity of Pt/CNTs, which provided evidence for bi-functional mechanism. The studies on the catalysts with different TiO2/Pt molar ratio displayed that the optimum molar ratio varied with the increase of heat treatment temperature. It was found that the optimum molar ratio of TiO2/Pt was at 1:2 for the catalysts without heat treatment and was at 1:1 for the catalysts by heat treatment at 500 deg C. This fact was ascribed to the difference in compact degree between TiO2 and Pt/CNTs before and after heat treatment. Considering the influence of heating temperature, it was found that TiO2-Pt/CNT catalyst heated at 200 deg C for 2h had better catalytic activity for methanol oxidation. |
| doi_str_mv | 10.1016/j.electacta.2007.11.080 |
| format | Article |
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Their catalytic activities for methanol and CO electro-oxidation were studied in detail. The results showed that the proper amount of hydrous TiO2 in TiO2-Pt/CNTs (e.g. heated at 200 deg C for 2h) was favorable for enhancing the catalytic activity of Pt/CNTs, which provided evidence for bi-functional mechanism. The studies on the catalysts with different TiO2/Pt molar ratio displayed that the optimum molar ratio varied with the increase of heat treatment temperature. It was found that the optimum molar ratio of TiO2/Pt was at 1:2 for the catalysts without heat treatment and was at 1:1 for the catalysts by heat treatment at 500 deg C. This fact was ascribed to the difference in compact degree between TiO2 and Pt/CNTs before and after heat treatment. Considering the influence of heating temperature, it was found that TiO2-Pt/CNT catalyst heated at 200 deg C for 2h had better catalytic activity for methanol oxidation.</description><identifier>ISSN: 0013-4686</identifier><identifier>EISSN: 1873-3859</identifier><identifier>DOI: 10.1016/j.electacta.2007.11.080</identifier><identifier>CODEN: ELCAAV</identifier><language>eng</language><publisher>Oxford: Elsevier</publisher><subject>Applied sciences ; Energy ; Energy. Thermal use of fuels ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Fuel cells</subject><ispartof>Electrochimica acta, 2008-04, Vol.53 (10), p.3708-3713</ispartof><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-9f38272aa6c0277cbd9318e274fc7564d508e4bd55f69244fcd3ef02e0d461513</citedby><cites>FETCH-LOGICAL-c384t-9f38272aa6c0277cbd9318e274fc7564d508e4bd55f69244fcd3ef02e0d461513</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20161193$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Song, Huanqiao</creatorcontrib><creatorcontrib>Qiu, Xinping</creatorcontrib><creatorcontrib>Li, Fushen</creatorcontrib><title>Effect of heat treatment on the performance of TiO2-Pt/CNT catalysts for methanol electro-oxidation</title><title>Electrochimica acta</title><description>TiO2-Pt/CNT catalysts before and after heat treatment were prepared. Their catalytic activities for methanol and CO electro-oxidation were studied in detail. The results showed that the proper amount of hydrous TiO2 in TiO2-Pt/CNTs (e.g. heated at 200 deg C for 2h) was favorable for enhancing the catalytic activity of Pt/CNTs, which provided evidence for bi-functional mechanism. The studies on the catalysts with different TiO2/Pt molar ratio displayed that the optimum molar ratio varied with the increase of heat treatment temperature. It was found that the optimum molar ratio of TiO2/Pt was at 1:2 for the catalysts without heat treatment and was at 1:1 for the catalysts by heat treatment at 500 deg C. This fact was ascribed to the difference in compact degree between TiO2 and Pt/CNTs before and after heat treatment. Considering the influence of heating temperature, it was found that TiO2-Pt/CNT catalyst heated at 200 deg C for 2h had better catalytic activity for methanol oxidation.</description><subject>Applied sciences</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Fuel cells</subject><issn>0013-4686</issn><issn>1873-3859</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNo9kF1LwzAUhoMoOKe_wdzoXbt8tEl6KcMvGM6LeR2y9IR1tM1MIrh_b-bG4JADL8-bhAehe0pKSqiYbUvowSaTp2SEyJLSkihygSZUSV5wVTeXaEII5UUllLhGNzFuSQaFJBNkn53Lbewd3oBJOIV8DjDmZMRpA3gHwfkwmNHCAVp1S1Z8ptn8Y4WtSabfxxRxJvAAaWNG3-P_7wRf-N-uNanz4y26cqaPcHfaU_T18ryavxWL5ev7_GlRWK6qVDSOKyaZMcISJqVdtw2nCpisnJW1qNqaKKjWbV070bAqpy0HRxiQthK0pnyKHo_37oL__oGY9NBFC31vRvA_UXPGea0Uy6A8gjb4GAM4vQvdYMJeU6IPUvVWn6Xqg1RNqc5Sc_Ph9ISJ1vQuZC9dPNdZ7lLacP4Hg0R7JQ</recordid><startdate>20080401</startdate><enddate>20080401</enddate><creator>Song, Huanqiao</creator><creator>Qiu, Xinping</creator><creator>Li, Fushen</creator><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20080401</creationdate><title>Effect of heat treatment on the performance of TiO2-Pt/CNT catalysts for methanol electro-oxidation</title><author>Song, Huanqiao ; Qiu, Xinping ; Li, Fushen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-9f38272aa6c0277cbd9318e274fc7564d508e4bd55f69244fcd3ef02e0d461513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Song, Huanqiao</creatorcontrib><creatorcontrib>Qiu, Xinping</creatorcontrib><creatorcontrib>Li, Fushen</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Electrochimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Song, Huanqiao</au><au>Qiu, Xinping</au><au>Li, Fushen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of heat treatment on the performance of TiO2-Pt/CNT catalysts for methanol electro-oxidation</atitle><jtitle>Electrochimica acta</jtitle><date>2008-04-01</date><risdate>2008</risdate><volume>53</volume><issue>10</issue><spage>3708</spage><epage>3713</epage><pages>3708-3713</pages><issn>0013-4686</issn><eissn>1873-3859</eissn><coden>ELCAAV</coden><abstract>TiO2-Pt/CNT catalysts before and after heat treatment were prepared. Their catalytic activities for methanol and CO electro-oxidation were studied in detail. The results showed that the proper amount of hydrous TiO2 in TiO2-Pt/CNTs (e.g. heated at 200 deg C for 2h) was favorable for enhancing the catalytic activity of Pt/CNTs, which provided evidence for bi-functional mechanism. The studies on the catalysts with different TiO2/Pt molar ratio displayed that the optimum molar ratio varied with the increase of heat treatment temperature. It was found that the optimum molar ratio of TiO2/Pt was at 1:2 for the catalysts without heat treatment and was at 1:1 for the catalysts by heat treatment at 500 deg C. This fact was ascribed to the difference in compact degree between TiO2 and Pt/CNTs before and after heat treatment. Considering the influence of heating temperature, it was found that TiO2-Pt/CNT catalyst heated at 200 deg C for 2h had better catalytic activity for methanol oxidation.</abstract><cop>Oxford</cop><pub>Elsevier</pub><doi>10.1016/j.electacta.2007.11.080</doi><tpages>6</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells |
| title | Effect of heat treatment on the performance of TiO2-Pt/CNT catalysts for methanol electro-oxidation |
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