Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon Monoliths
Activated carbon monoliths disc and honeycomb type were prepared by chemical activation of coconut shell with zinc chloride at different concentrations, without using a binder. The structures were characterized by N2 adsorption at 77 K and immersion calorimetry into benzene. The experimental results...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2012/976275 |
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| _version_ | 1849398156234588160 |
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| author | Juan Carlos Moreno-Piraján Liliana Giraldo Diana P. Vargas |
| author_facet | Juan Carlos Moreno-Piraján Liliana Giraldo Diana P. Vargas |
| author_sort | Juan Carlos Moreno-Piraján |
| collection | DOAJ |
| description | Activated carbon monoliths disc and honeycomb type were prepared by chemical activation of coconut shell with zinc chloride at different concentrations, without using a binder. The structures were characterized by N2 adsorption at 77 K and immersion calorimetry into benzene. The experimental results showed that the activation with zinc chloride produces a wide microporous development, with micropore volume between 0,38 and 0,79 cm3g-1, apparent BET surface area between 725 and 1523 m2g-1 and immersion enthalpy between 73,5 and 164,2 Jg-1. We compared the experimental enthalpy with calculated enthalpy by equation Stoeckli-Kraehenbuehl finding a data dispersion from which can infer that the structures are not purely microporous; this fact is ratified with similar behavior that the evidence t the product EoWo. |
| format | Article |
| id | doaj-art-9eb629a04ddb49f2a6c9e6f6bd836979 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-9eb629a04ddb49f2a6c9e6f6bd8369792025-08-20T03:38:43ZengWileyE-Journal of Chemistry0973-49452090-98102012-01-019265065810.1155/2012/976275Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon MonolithsJuan Carlos Moreno-Piraján0Liliana Giraldo1Diana P. Vargas2Departamento de Química, Facultad de Ciencias, Grupo de Investigación en Sólidos Porososy Calorimetría, Universidad de los Andes, Carrera 1a N° 18a-10, Bogotá, ColombiaDepartamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Avenida Carrera 30 N° 45-03 Bogotá, ColombiaDepartamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Avenida Carrera 30 N° 45-03 Bogotá, ColombiaActivated carbon monoliths disc and honeycomb type were prepared by chemical activation of coconut shell with zinc chloride at different concentrations, without using a binder. The structures were characterized by N2 adsorption at 77 K and immersion calorimetry into benzene. The experimental results showed that the activation with zinc chloride produces a wide microporous development, with micropore volume between 0,38 and 0,79 cm3g-1, apparent BET surface area between 725 and 1523 m2g-1 and immersion enthalpy between 73,5 and 164,2 Jg-1. We compared the experimental enthalpy with calculated enthalpy by equation Stoeckli-Kraehenbuehl finding a data dispersion from which can infer that the structures are not purely microporous; this fact is ratified with similar behavior that the evidence t the product EoWo.http://dx.doi.org/10.1155/2012/976275 |
| spellingShingle | Juan Carlos Moreno-Piraján Liliana Giraldo Diana P. Vargas Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon Monoliths E-Journal of Chemistry |
| title | Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon Monoliths |
| title_full | Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon Monoliths |
| title_fullStr | Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon Monoliths |
| title_full_unstemmed | Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon Monoliths |
| title_short | Determination of Energy Characteristic and Microporous Volume by Immersion Calorimetry in Carbon Monoliths |
| title_sort | determination of energy characteristic and microporous volume by immersion calorimetry in carbon monoliths |
| url | http://dx.doi.org/10.1155/2012/976275 |
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