Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon
<abstract language="eng">The kinetic study of decomposition of hydrogen peroxide catalyzed by activated carbon was carried out. The effect of concentrations of reactants and temperature were experimentally studied. Kinetic data were evaluated using differential method of initial rate...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2009-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000400020 |
| _version_ | 1811273118263541760 |
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| author | Elihu Paternina Juan M. Arias Daniel Barragán |
| author_facet | Elihu Paternina Juan M. Arias Daniel Barragán |
| author_sort | Elihu Paternina |
| collection | DOAJ |
| description | <abstract language="eng">The kinetic study of decomposition of hydrogen peroxide catalyzed by activated carbon was carried out. The effect of concentrations of reactants and temperature were experimentally studied. Kinetic data were evaluated using differential method of initial rates of reaction. When a typical kinetic law for reactions in homogeneous phase is used, first order of reaction is obtained for hydrogen peroxide and activated carbon, and activation energy of 27 kJ mol-1 for the reaction was estimated. Experimentally was observed that surface of activated carbon is chemically modified during decomposition of hydrogen peroxide, based on this result a scheme of reaction was proposed and evaluated. Experimental data fits very well to a Langmuir- Hinshelwood kinetic model and activation energy of 40 kJ mol-1 was estimated for reaction in heterogeneous phase. |
| first_indexed | 2024-04-12T22:53:36Z |
| format | Article |
| id | doaj.art-6ce49e957e554d72b39fa9d51d78d69a |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-04-12T22:53:36Z |
| publishDate | 2009-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-6ce49e957e554d72b39fa9d51d78d69a2022-12-22T03:13:17ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642009-01-0132493493810.1590/S0100-40422009000400020Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbonElihu PaterninaJuan M. AriasDaniel Barragán<abstract language="eng">The kinetic study of decomposition of hydrogen peroxide catalyzed by activated carbon was carried out. The effect of concentrations of reactants and temperature were experimentally studied. Kinetic data were evaluated using differential method of initial rates of reaction. When a typical kinetic law for reactions in homogeneous phase is used, first order of reaction is obtained for hydrogen peroxide and activated carbon, and activation energy of 27 kJ mol-1 for the reaction was estimated. Experimentally was observed that surface of activated carbon is chemically modified during decomposition of hydrogen peroxide, based on this result a scheme of reaction was proposed and evaluated. Experimental data fits very well to a Langmuir- Hinshelwood kinetic model and activation energy of 40 kJ mol-1 was estimated for reaction in heterogeneous phase.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000400020decomposition of hydrogen peroxideinitial rate of reactionkinetic law of Langmuir-Hinshelwood |
| spellingShingle | Elihu Paternina Juan M. Arias Daniel Barragán Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon Química Nova decomposition of hydrogen peroxide initial rate of reaction kinetic law of Langmuir-Hinshelwood |
| title | Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon |
| title_full | Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon |
| title_fullStr | Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon |
| title_full_unstemmed | Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon |
| title_short | Estudio cinético de la descomposición catalizada de peróxido de hidrógeno sobre carbón activado Kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon |
| title_sort | estudio cinetico de la descomposicion catalizada de peroxido de hidrogeno sobre carbon activado kinetic study of the catalyzed decomposition of hydrogen peroxide on activated carbon |
| topic | decomposition of hydrogen peroxide initial rate of reaction kinetic law of Langmuir-Hinshelwood |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000400020 |
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