Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors
The synthesis of copper-doped activated carbons from different origin (i.e., lignocellulosic and bituminous coal) by a wet impregnation and low temperature calcination procedure has been explored, as well as the role of copper particles on the physicochemical and structural features of the resulting materials. The textural characterization and isothermal reactivity analysis of the pristine and doped activated carbons have shown that the role of copper during the calcination step strongly depended on the nature of the carbon matrix. Copper impregnation of a coal-derived activated carbon catalyzed the air gasification of the material at a very low temperature (i.e., 325 °C), bringing about the development of microporosity on the doped carbon. In contrast, when copper was immobilized on a lignocellulose-derived activated carbon, the metallic species act as combustion retardant during the calcination step, protecting the carbon matrix during the catalytic gasification. In both cases, the resulting materials displayed a homogenous distribution of copper within the carbon matrix, while preserving large textural properties.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2012-05
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Subjects: | Activated carbon, Copper, Isothermal gasification, |
Online Access: | http://hdl.handle.net/10261/98694 |
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dig-incar-es-10261-986942018-11-16T07:52:12Z Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors Haro Remón, Marta Ruiz Bobes, Begoña Andrade, Marta Mestre, Ana S. Parra Soto, José Bernardo Carvalho, A.P. Ovín Ania, María Concepción Activated carbon Copper Isothermal gasification The synthesis of copper-doped activated carbons from different origin (i.e., lignocellulosic and bituminous coal) by a wet impregnation and low temperature calcination procedure has been explored, as well as the role of copper particles on the physicochemical and structural features of the resulting materials. The textural characterization and isothermal reactivity analysis of the pristine and doped activated carbons have shown that the role of copper during the calcination step strongly depended on the nature of the carbon matrix. Copper impregnation of a coal-derived activated carbon catalyzed the air gasification of the material at a very low temperature (i.e., 325 °C), bringing about the development of microporosity on the doped carbon. In contrast, when copper was immobilized on a lignocellulose-derived activated carbon, the metallic species act as combustion retardant during the calcination step, protecting the carbon matrix during the catalytic gasification. In both cases, the resulting materials displayed a homogenous distribution of copper within the carbon matrix, while preserving large textural properties. The authors thank the Spanish MICINN for financial support (projects CTM2008-01956/TECNO and Acción Integrada AIB2010PT-00209). MH thanks CSIC for a postdoctoral contract. MA thanks FCT for her PhD fellowship (SFRH/BD/71673/2010). The authors also thank Cordex for kindly providing the sisal residues. Peer reviewed 2014-06-20T10:13:48Z 2014-06-20T10:13:48Z 2012-05 artículo http://purl.org/coar/resource_type/c_6501 Microporous and Mesoporous Materials 154: 68-73 (2012) 1387-1811 http://hdl.handle.net/10261/98694 10.1016/j.micromeso.2011.07.005 en Postprint http://dx.doi.org/10.1016/j.micromeso.2011.07.005 Sí open Elsevier |
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Activated carbon Copper Isothermal gasification Activated carbon Copper Isothermal gasification |
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Activated carbon Copper Isothermal gasification Activated carbon Copper Isothermal gasification Haro Remón, Marta Ruiz Bobes, Begoña Andrade, Marta Mestre, Ana S. Parra Soto, José Bernardo Carvalho, A.P. Ovín Ania, María Concepción Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors |
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The synthesis of copper-doped activated carbons from different origin (i.e., lignocellulosic and bituminous coal) by a wet impregnation and low temperature calcination procedure has been explored, as well as the role of copper particles on the physicochemical and structural features of the resulting materials. The textural characterization and isothermal reactivity analysis of the pristine and doped activated carbons have shown that the role of copper during the calcination step strongly depended on the nature of the carbon matrix. Copper impregnation of a coal-derived activated carbon catalyzed the air gasification of the material at a very low temperature (i.e., 325 °C), bringing about the development of microporosity on the doped carbon. In contrast, when copper was immobilized on a lignocellulose-derived activated carbon, the metallic species act as combustion retardant during the calcination step, protecting the carbon matrix during the catalytic gasification. In both cases, the resulting materials displayed a homogenous distribution of copper within the carbon matrix, while preserving large textural properties. |
format |
artículo |
topic_facet |
Activated carbon Copper Isothermal gasification |
author |
Haro Remón, Marta Ruiz Bobes, Begoña Andrade, Marta Mestre, Ana S. Parra Soto, José Bernardo Carvalho, A.P. Ovín Ania, María Concepción |
author_facet |
Haro Remón, Marta Ruiz Bobes, Begoña Andrade, Marta Mestre, Ana S. Parra Soto, José Bernardo Carvalho, A.P. Ovín Ania, María Concepción |
author_sort |
Haro Remón, Marta |
title |
Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors |
title_short |
Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors |
title_full |
Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors |
title_fullStr |
Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors |
title_full_unstemmed |
Dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors |
title_sort |
dual role of copper on the reactivity of activated carbons from coal and lignocellulosic precursors |
publisher |
Elsevier |
publishDate |
2012-05 |
url |
http://hdl.handle.net/10261/98694 |
work_keys_str_mv |
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