Influence of the incorporated metal on template removal from MCM-41 type mesoporous materials
Al-modified MCM-41, La-modified MCM-41, and Ce-modified MCM-41 mesoporous materials were prepared with different molar ratios (Si/M = 10; 25; 50; 100 and 200) at room temperature. The materials were characterized using XRD, BET–BJH, and TG–DTA. The XRD showed four peaks, due to the ordered hexagonal...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2011-11, Vol.106 (2), p.355-361 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | de Souza, Luiz K. C. Pardauil, Juliana J. R. Zamian, José R. da Rocha Filho, Geraldo N. da Costa, Carlos E. F. |
| description | Al-modified MCM-41, La-modified MCM-41, and Ce-modified MCM-41 mesoporous materials were prepared with different molar ratios (Si/M = 10; 25; 50; 100 and 200) at room temperature. The materials were characterized using XRD, BET–BJH, and TG–DTA. The XRD showed four peaks, due to the ordered hexagonal array of parallel silica tubes, which could be indexed as (100), (110), (200), and (210), assuming a hexagonal unit cell. The surface area decreased as the concentration of the metal incorporated in the material increased. The thermal stability of the materials was around 650 °C. The CeO
2
phase made the mass transfer process more difficult, hindering Hofmann degradation and favoring oxidation. |
| doi_str_mv | 10.1007/s10973-011-1295-1 |
| format | Article |
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2
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2
phase made the mass transfer process more difficult, hindering Hofmann degradation and favoring oxidation.</description><subject>Analytical Chemistry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Colloidal state and disperse state</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Inorganic Chemistry</subject><subject>Measurement Science and Instrumentation</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Porous materials</subject><subject>Silica</subject><subject>Surface active agents</subject><issn>1388-6150</issn><issn>1588-2926</issn><issn>1572-8943</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kMFq3DAQhk1poCHZB-hNlxx6cKKxLNs6hqVtFjYU2uYYhCyPtg62ZCRtad4-szgEcik6zDD6voH5i-Iz8GvgvL1JwFUrSg5QQqVkCR-Kc5BdV1aqaj5SL6hvQPJPxSalsecV8EbJTp0XjzvvpiN6iyw4lv8gG70NcQnRZBzYjNlMLHiWcV4mGrGIc_hLMxfDzO6392UNLD8vSGgKpIVjYjOBcTRTuizOHBXcvNaL4uHb19_bu3L_4_tue7svrVCQS9l3RlRSKeWw6xsnJQ69s3WjrGgGWTslW9s617TDgOCGtuulrHnPhxqgM1xcFNfr3oOZUI_ehRyNpTfgPNrg0Y00vxV0suokFyR8eScQk_FfPphjSnr36-d7FlbWxpBSRKeXOM4mPmvg-pS_XvPXlL8-5a-BnKvVWUyyZnLReDumN7Gq25qLuiKuWrlEX_6AUT-FY_SU1X-WvwDmHJTf</recordid><startdate>20111101</startdate><enddate>20111101</enddate><creator>de Souza, Luiz K. C.</creator><creator>Pardauil, Juliana J. R.</creator><creator>Zamian, José R.</creator><creator>da Rocha Filho, Geraldo N.</creator><creator>da Costa, Carlos E. F.</creator><general>Springer Netherlands</general><general>Springer</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope></search><sort><creationdate>20111101</creationdate><title>Influence of the incorporated metal on template removal from MCM-41 type mesoporous materials</title><author>de Souza, Luiz K. C. ; Pardauil, Juliana J. R. ; Zamian, José R. ; da Rocha Filho, Geraldo N. ; da Costa, Carlos E. F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-5b8a325999fe8b6f55edbfc469c36d54f957c7ff67dde1fd78b5540b0d4118a03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Analytical Chemistry</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Colloidal state and disperse state</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Inorganic Chemistry</topic><topic>Measurement Science and Instrumentation</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Porous materials</topic><topic>Silica</topic><topic>Surface active agents</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Souza, Luiz K. C.</creatorcontrib><creatorcontrib>Pardauil, Juliana J. R.</creatorcontrib><creatorcontrib>Zamian, José R.</creatorcontrib><creatorcontrib>da Rocha Filho, Geraldo N.</creatorcontrib><creatorcontrib>da Costa, Carlos E. F.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Souza, Luiz K. C.</au><au>Pardauil, Juliana J. R.</au><au>Zamian, José R.</au><au>da Rocha Filho, Geraldo N.</au><au>da Costa, Carlos E. F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of the incorporated metal on template removal from MCM-41 type mesoporous materials</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2011-11-01</date><risdate>2011</risdate><volume>106</volume><issue>2</issue><spage>355</spage><epage>361</epage><pages>355-361</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><eissn>1572-8943</eissn><abstract>Al-modified MCM-41, La-modified MCM-41, and Ce-modified MCM-41 mesoporous materials were prepared with different molar ratios (Si/M = 10; 25; 50; 100 and 200) at room temperature. The materials were characterized using XRD, BET–BJH, and TG–DTA. The XRD showed four peaks, due to the ordered hexagonal array of parallel silica tubes, which could be indexed as (100), (110), (200), and (210), assuming a hexagonal unit cell. The surface area decreased as the concentration of the metal incorporated in the material increased. The thermal stability of the materials was around 650 °C. The CeO
2
phase made the mass transfer process more difficult, hindering Hofmann degradation and favoring oxidation.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10973-011-1295-1</doi><tpages>7</tpages></addata></record> |
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| subjects | Analytical Chemistry Chemistry Chemistry and Materials Science Colloidal state and disperse state Exact sciences and technology General and physical chemistry Inorganic Chemistry Measurement Science and Instrumentation Physical Chemistry Polymer Sciences Porous materials Silica Surface active agents |
| title | Influence of the incorporated metal on template removal from MCM-41 type mesoporous materials |
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