Nanospace engineering of KOH activated car
This paper demonstrates that nanospace engineering of KOH activated carbon is possible by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process. High specific surface areas, porosities, sub-nanometer (<1 nm) and sup...
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| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , , , , , , |
| التنسيق: | article |
| منشور في: |
2011
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/11417 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://iopscience.iop.org/article/10.1088/0957-4484/23/1/015401/meta |
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| _version_ | 1864513488751165440 |
|---|---|
| author | Romanos, J. |
| author2 | Beckner, M. Rash, T. Firlej, L. Kuchta, B. Yu, P. Suppes, G. Wexler, C. Pfeifer, P. |
| author2_role | author author author author author author author author |
| author_facet | Romanos, J. Beckner, M. Rash, T. Firlej, L. Kuchta, B. Yu, P. Suppes, G. Wexler, C. Pfeifer, P. |
| author_role | author |
| dc.creator.none.fl_str_mv | Romanos, J. Beckner, M. Rash, T. Firlej, L. Kuchta, B. Yu, P. Suppes, G. Wexler, C. Pfeifer, P. |
| dc.date.none.fl_str_mv | 2011 2019-10-11T06:39:51Z 2019-10-11T06:39:51Z 2019-10-11 |
| dc.identifier.none.fl_str_mv | 1361-6528 http://hdl.handle.net/10725/11417 Romanos, J., Beckner, M., Rash, T., Firlej, L., Kuchta, B., Yu, P., ... & Pfeifer, P. (2011). Nanospace engineering of KOH activated carbon. Nanotechnology, 23(1), 015401. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://iopscience.iop.org/article/10.1088/0957-4484/23/1/015401/meta |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Nanotechnology |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Nanospace engineering of KOH activated car |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | This paper demonstrates that nanospace engineering of KOH activated carbon is possible by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process. High specific surface areas, porosities, sub-nanometer (<1 nm) and supra-nanometer (1–5 nm) pore volumes are quantitatively controlled by a combination of KOH concentration and activation temperature. The process typically leads to a bimodal pore size distribution, with a large, approximately constant number of sub-nanometer pores and a variable number of supra-nanometer pores. We show how to control the number of supra-nanometer pores in a manner not achieved previously by chemical activation. The chemical mechanism underlying this control is studied by following the evolution of elemental composition, specific surface area, porosity, and pore size distribution during KOH activation and preceding H3PO4 activation. The oxygen, nitrogen, and hydrogen contents decrease during successive activation steps, creating a nanoporous carbon network with a porosity and surface area controllable for various applications, including gas storage. The formation of tunable sub-nanometer and supra-nanometer pores is validated by sub-critical nitrogen adsorption. Surface functional groups of KOH activated carbon are studied by microscopic infrared spectroscopy. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_cb1377f4bfd427cdbaa6850101e0026d |
| identifier_str_mv | 1361-6528 Romanos, J., Beckner, M., Rash, T., Firlej, L., Kuchta, B., Yu, P., ... & Pfeifer, P. (2011). Nanospace engineering of KOH activated carbon. Nanotechnology, 23(1), 015401. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/11417 |
| publishDate | 2011 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Nanospace engineering of KOH activated carRomanos, J.Beckner, M.Rash, T.Firlej, L.Kuchta, B.Yu, P.Suppes, G.Wexler, C.Pfeifer, P.This paper demonstrates that nanospace engineering of KOH activated carbon is possible by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process. High specific surface areas, porosities, sub-nanometer (<1 nm) and supra-nanometer (1–5 nm) pore volumes are quantitatively controlled by a combination of KOH concentration and activation temperature. The process typically leads to a bimodal pore size distribution, with a large, approximately constant number of sub-nanometer pores and a variable number of supra-nanometer pores. We show how to control the number of supra-nanometer pores in a manner not achieved previously by chemical activation. The chemical mechanism underlying this control is studied by following the evolution of elemental composition, specific surface area, porosity, and pore size distribution during KOH activation and preceding H3PO4 activation. The oxygen, nitrogen, and hydrogen contents decrease during successive activation steps, creating a nanoporous carbon network with a porosity and surface area controllable for various applications, including gas storage. The formation of tunable sub-nanometer and supra-nanometer pores is validated by sub-critical nitrogen adsorption. Surface functional groups of KOH activated carbon are studied by microscopic infrared spectroscopy.PublishedN/A2019-10-11T06:39:51Z2019-10-11T06:39:51Z20112019-10-11Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1361-6528http://hdl.handle.net/10725/11417Romanos, J., Beckner, M., Rash, T., Firlej, L., Kuchta, B., Yu, P., ... & Pfeifer, P. (2011). Nanospace engineering of KOH activated carbon. Nanotechnology, 23(1), 015401.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttps://iopscience.iop.org/article/10.1088/0957-4484/23/1/015401/metaenNanotechnologyinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/114172021-03-19T10:47:37Z |
| spellingShingle | Nanospace engineering of KOH activated car Romanos, J. |
| status_str | publishedVersion |
| title | Nanospace engineering of KOH activated car |
| title_full | Nanospace engineering of KOH activated car |
| title_fullStr | Nanospace engineering of KOH activated car |
| title_full_unstemmed | Nanospace engineering of KOH activated car |
| title_short | Nanospace engineering of KOH activated car |
| title_sort | Nanospace engineering of KOH activated car |
| url | http://hdl.handle.net/10725/11417 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://iopscience.iop.org/article/10.1088/0957-4484/23/1/015401/meta |