Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods
[EN] One option to optimize carbon materials for supercapacitor applications is the generation of surface functional groups that contribute to the pseudocapacitance without losing the designed physical properties. This requires suitable functionalization techniques able to selectively introduce a given amount of electroactive oxygen groups. In this work, the influence of the chemical and electrochemical oxidation methods, on the chemical and physical properties of a zeolite templated carbon (ZTC), as a model carbon material, have been studied and compared. Although both oxidation methods generally produce a loss of the original ZTC physical properties with increasing amount of oxidation, the electrochemical method shows much better controllability and, unlike chemical treatments, enables the generation of a large number of oxygen groups (O = 11000- 3300 μmol/g), with a higher proportion of active functionalities, while retaining a high surface area (ranging between 1900-3500 m2/g), a high microporosity and an ordered 3-D structure.
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| Format: | artículo biblioteca |
| Language: | English |
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Grupo Español del Carbón
2013-06
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| Subjects: | Carbon materials, Materiales cabonosos, Supercapacitors, Supercondensadores, Zeolites, Electrochemical oxidation, |
| Online Access: | http://hdl.handle.net/10261/81749 |
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dig-incar-es-10261-817492016-02-17T19:00:31Z Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods Berenguer, R. Morallón, E. Cazorla-Amorós, D. Nishihara, H. Itoi, H. Ishii, T. Kyotani, T. Carbon materials Materiales cabonosos Supercapacitors Supercondensadores Zeolites Electrochemical oxidation [EN] One option to optimize carbon materials for supercapacitor applications is the generation of surface functional groups that contribute to the pseudocapacitance without losing the designed physical properties. This requires suitable functionalization techniques able to selectively introduce a given amount of electroactive oxygen groups. In this work, the influence of the chemical and electrochemical oxidation methods, on the chemical and physical properties of a zeolite templated carbon (ZTC), as a model carbon material, have been studied and compared. Although both oxidation methods generally produce a loss of the original ZTC physical properties with increasing amount of oxidation, the electrochemical method shows much better controllability and, unlike chemical treatments, enables the generation of a large number of oxygen groups (O = 11000- 3300 μmol/g), with a higher proportion of active functionalities, while retaining a high surface area (ranging between 1900-3500 m2/g), a high microporosity and an ordered 3-D structure. [ES] Una posibilidad para optimizar los materiales carbonosos para su aplicación en supercondensadores es la generación de grupos funcionales que contribuyan a la pseudocapacidad sin perder las propiedades físicas iniciales. Esto requiere de técnicas de funcionalización adecuadas, capaces de introducir selectivamente una determinada cantidad de grupos oxigenados electroactivos. En este trabajo, se han estudiado y comparado los efectos de los métodos de oxidación química y electroquímica en las propiedades químicas y físicas de un material carbonoso preparado mediante el uso de una zeolita Y como plantilla (en inglés, zeolite templated carbon (ZTC)). Aunque de forma general ambos métodos dañan las propiedades originales del ZTC, el método electroquímico muestra un mayor control que, a diferencia de los tratamientos químicos, permite la generación de una gran cantidad de grupos oxigenados (O = 11000- 3300 μmol/g), con una mayor proporción de grupos activos, manteniendo al mismo tiempo una elevada área superficial (entre 1900-3500 m2/g), una elevada microporosidad y una estructura 3-D ordenada. Financial support by the MINECO and FEDER for the joint Spanish-Japanese project (PRIPIBJP- 2011-0766) and MAT2010-15273 and CTQ2012-31762 projects, by Generalitat Valenciana (PROMETEO/2009/047), as well as the Japanese Ministry of Education, Science, Sports and Culture, for the Grant-in-Aid for young scientists (A) (23685041)are gratefully acknowledged. Peer reviewed 2013-09-10T10:55:53Z 2013-09-10T10:55:53Z 2013-06 artículo http://purl.org/coar/resource_type/c_6501 Boletín del Grupo Español del Carbón (28): 10-14 (2013) http://hdl.handle.net/10261/81749 2172-6094 en http://www.gecarbon.org/boletines/articulos/boletinGEC_028-A2.pdf open Grupo Español del Carbón |
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Carbon materials Materiales cabonosos Supercapacitors Supercondensadores Zeolites Electrochemical oxidation Carbon materials Materiales cabonosos Supercapacitors Supercondensadores Zeolites Electrochemical oxidation |
| spellingShingle |
Carbon materials Materiales cabonosos Supercapacitors Supercondensadores Zeolites Electrochemical oxidation Carbon materials Materiales cabonosos Supercapacitors Supercondensadores Zeolites Electrochemical oxidation Berenguer, R. Morallón, E. Cazorla-Amorós, D. Nishihara, H. Itoi, H. Ishii, T. Kyotani, T. Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods |
| description |
[EN] One option to optimize carbon materials for
supercapacitor applications is the generation of
surface functional groups that contribute to the
pseudocapacitance without losing the designed
physical properties. This requires suitable
functionalization techniques able to selectively
introduce a given amount of electroactive oxygen
groups. In this work, the influence of the chemical and
electrochemical oxidation methods, on the chemical
and physical properties of a zeolite templated carbon
(ZTC), as a model carbon material, have been
studied and compared. Although both oxidation
methods generally produce a loss of the original
ZTC physical properties with increasing amount of
oxidation, the electrochemical method shows much
better controllability and, unlike chemical treatments,
enables the generation of a large number of oxygen
groups (O = 11000- 3300 μmol/g), with a higher
proportion of active functionalities, while retaining a
high surface area (ranging between 1900-3500 m2/g),
a high microporosity and an ordered 3-D structure. |
| format |
artículo |
| topic_facet |
Carbon materials Materiales cabonosos Supercapacitors Supercondensadores Zeolites Electrochemical oxidation |
| author |
Berenguer, R. Morallón, E. Cazorla-Amorós, D. Nishihara, H. Itoi, H. Ishii, T. Kyotani, T. |
| author_facet |
Berenguer, R. Morallón, E. Cazorla-Amorós, D. Nishihara, H. Itoi, H. Ishii, T. Kyotani, T. |
| author_sort |
Berenguer, R. |
| title |
Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods |
| title_short |
Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods |
| title_full |
Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods |
| title_fullStr |
Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods |
| title_full_unstemmed |
Tailoring the Surface Chemistry of Zeolite Templated Carbon by Electrochemical Methods |
| title_sort |
tailoring the surface chemistry of zeolite templated carbon by electrochemical methods |
| publisher |
Grupo Español del Carbón |
| publishDate |
2013-06 |
| url |
http://hdl.handle.net/10261/81749 |
| work_keys_str_mv |
AT berenguerr tailoringthesurfacechemistryofzeolitetemplatedcarbonbyelectrochemicalmethods AT morallone tailoringthesurfacechemistryofzeolitetemplatedcarbonbyelectrochemicalmethods AT cazorlaamorosd tailoringthesurfacechemistryofzeolitetemplatedcarbonbyelectrochemicalmethods AT nishiharah tailoringthesurfacechemistryofzeolitetemplatedcarbonbyelectrochemicalmethods AT itoih tailoringthesurfacechemistryofzeolitetemplatedcarbonbyelectrochemicalmethods AT ishiit tailoringthesurfacechemistryofzeolitetemplatedcarbonbyelectrochemicalmethods AT kyotanit tailoringthesurfacechemistryofzeolitetemplatedcarbonbyelectrochemicalmethods |
| _version_ |
1777668901888327680 |