Rh(1%)Ce sub(x)Zr sub(1-x)O sub(2)-Al sub(2)O sub(3) nanocomposites: Active and stable catalysts for ethanol steam reforming
Rh(1%)Ce sub(x)Zr sub(1-x)O sub(2)-Al sub(2)O sub(3) nanocomposites have been investigated as active and thermally stable catalysts for ethanol steam reforming. Preformed Rh nanoparticles have been efficiently protected from deactivation/sintering by a porous layer of nanocomposite oxides. Chemisorp...
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| Veröffentlicht in: | Applied catalysis. B, Environmental Environmental, 2007-02, Vol.71 (3-4), p.125-134 |
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| container_issue | 3-4 |
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| container_title | Applied catalysis. B, Environmental |
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| creator | Montini, Tiziano De Rogatis, Loredana Gombac, Valentina nasiero, Paolo Graziani, Mauro |
| description | Rh(1%)Ce sub(x)Zr sub(1-x)O sub(2)-Al sub(2)O sub(3) nanocomposites have been investigated as active and thermally stable catalysts for ethanol steam reforming. Preformed Rh nanoparticles have been efficiently protected from deactivation/sintering by a porous layer of nanocomposite oxides. Chemisorption and activity data confirm the good accessibility of the metal phase to the reaction mixture. No appreciable deactivation is observed after 160 h of reaction at 873 K. The ceria-zirconia mixed oxides favour reforming reactions, reduce coke formation and facilitate its removal. The alumina component is important to stabilize the ceria-zirconia mixed oxides, preventing their sintering. |
| doi_str_mv | 10.1016/j.apcatb.2006.09.003 |
| format | Article |
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Preformed Rh nanoparticles have been efficiently protected from deactivation/sintering by a porous layer of nanocomposite oxides. Chemisorption and activity data confirm the good accessibility of the metal phase to the reaction mixture. No appreciable deactivation is observed after 160 h of reaction at 873 K. The ceria-zirconia mixed oxides favour reforming reactions, reduce coke formation and facilitate its removal. The alumina component is important to stabilize the ceria-zirconia mixed oxides, preventing their sintering.</description><identifier>ISSN: 0926-3373</identifier><identifier>DOI: 10.1016/j.apcatb.2006.09.003</identifier><language>eng</language><subject>Catalysis ; Coke ; Ethanol ; Metals ; Q1</subject><ispartof>Applied catalysis. 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B, Environmental</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Montini, Tiziano</au><au>De Rogatis, Loredana</au><au>Gombac, Valentina</au><au>nasiero, Paolo</au><au>Graziani, Mauro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rh(1%)Ce sub(x)Zr sub(1-x)O sub(2)-Al sub(2)O sub(3) nanocomposites: Active and stable catalysts for ethanol steam reforming</atitle><jtitle>Applied catalysis. B, Environmental</jtitle><date>2007-02-01</date><risdate>2007</risdate><volume>71</volume><issue>3-4</issue><spage>125</spage><epage>134</epage><pages>125-134</pages><issn>0926-3373</issn><abstract>Rh(1%)Ce sub(x)Zr sub(1-x)O sub(2)-Al sub(2)O sub(3) nanocomposites have been investigated as active and thermally stable catalysts for ethanol steam reforming. Preformed Rh nanoparticles have been efficiently protected from deactivation/sintering by a porous layer of nanocomposite oxides. Chemisorption and activity data confirm the good accessibility of the metal phase to the reaction mixture. No appreciable deactivation is observed after 160 h of reaction at 873 K. The ceria-zirconia mixed oxides favour reforming reactions, reduce coke formation and facilitate its removal. The alumina component is important to stabilize the ceria-zirconia mixed oxides, preventing their sintering.</abstract><doi>10.1016/j.apcatb.2006.09.003</doi></addata></record> |
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| ispartof | Applied catalysis. B, Environmental, 2007-02, Vol.71 (3-4), p.125-134 |
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| language | eng |
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| subjects | Catalysis Coke Ethanol Metals Q1 |
| title | Rh(1%)Ce sub(x)Zr sub(1-x)O sub(2)-Al sub(2)O sub(3) nanocomposites: Active and stable catalysts for ethanol steam reforming |
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