Mesopore Development in Activated Carbon Fibres by Additional Chemical Activation
Mesoporous activated carbon fibres (ACFs) were prepared from pitch-based microporous carbon fibres by additional chemical activation using calcium nitrate [Ca(NO 3 ) 2 ] and disodium hydrogen phosphate (Na 2 HPO 4 ) as activation agents. The porosity change was examined by performing N 2 adsorption...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2006-06-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361706779849753 |
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| _version_ | 1841563230251515904 |
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| author | Song Lei Junichi Miyamoto Hirofumi Kanoh Katsumi Kaneko |
| author_facet | Song Lei Junichi Miyamoto Hirofumi Kanoh Katsumi Kaneko |
| author_sort | Song Lei |
| collection | DOAJ |
| description | Mesoporous activated carbon fibres (ACFs) were prepared from pitch-based microporous carbon fibres by additional chemical activation using calcium nitrate [Ca(NO 3 ) 2 ] and disodium hydrogen phosphate (Na 2 HPO 4 ) as activation agents. The porosity change was examined by performing N 2 adsorption measurements at 77 K. The nitrogen adsorption isotherm varied as a result of re-activation with Na 2 HPO 4 or Ca(NO 3 ) 2 at 1123 K or 1173 K for 1 h or 2 h, with that of the re-activated ACFs exhibiting explicit H4 or H1 hysteresis. The use of Ca(NO 3 ) 2 for chemical activation produced more mesopores than Na 2 HPO 4 , the maximum mesopore volume being 0.92 ml/g. The largest volume ratio of mesopores to micropores was greater than three and the surface areas were greater than 1000 m 2 /g. |
| format | Article |
| id | doaj-art-93a91604b2ab4ce7a0fd5e0176c64b61 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2006-06-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-93a91604b2ab4ce7a0fd5e0176c64b612025-01-03T00:10:25ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382006-06-012410.1260/026361706779849753Mesopore Development in Activated Carbon Fibres by Additional Chemical ActivationSong LeiJunichi MiyamotoHirofumi KanohKatsumi KanekoMesoporous activated carbon fibres (ACFs) were prepared from pitch-based microporous carbon fibres by additional chemical activation using calcium nitrate [Ca(NO 3 ) 2 ] and disodium hydrogen phosphate (Na 2 HPO 4 ) as activation agents. The porosity change was examined by performing N 2 adsorption measurements at 77 K. The nitrogen adsorption isotherm varied as a result of re-activation with Na 2 HPO 4 or Ca(NO 3 ) 2 at 1123 K or 1173 K for 1 h or 2 h, with that of the re-activated ACFs exhibiting explicit H4 or H1 hysteresis. The use of Ca(NO 3 ) 2 for chemical activation produced more mesopores than Na 2 HPO 4 , the maximum mesopore volume being 0.92 ml/g. The largest volume ratio of mesopores to micropores was greater than three and the surface areas were greater than 1000 m 2 /g.https://doi.org/10.1260/026361706779849753 |
| spellingShingle | Song Lei Junichi Miyamoto Hirofumi Kanoh Katsumi Kaneko Mesopore Development in Activated Carbon Fibres by Additional Chemical Activation Adsorption Science & Technology |
| title | Mesopore Development in Activated Carbon Fibres by Additional Chemical Activation |
| title_full | Mesopore Development in Activated Carbon Fibres by Additional Chemical Activation |
| title_fullStr | Mesopore Development in Activated Carbon Fibres by Additional Chemical Activation |
| title_full_unstemmed | Mesopore Development in Activated Carbon Fibres by Additional Chemical Activation |
| title_short | Mesopore Development in Activated Carbon Fibres by Additional Chemical Activation |
| title_sort | mesopore development in activated carbon fibres by additional chemical activation |
| url | https://doi.org/10.1260/026361706779849753 |
| work_keys_str_mv | AT songlei mesoporedevelopmentinactivatedcarbonfibresbyadditionalchemicalactivation AT junichimiyamoto mesoporedevelopmentinactivatedcarbonfibresbyadditionalchemicalactivation AT hirofumikanoh mesoporedevelopmentinactivatedcarbonfibresbyadditionalchemicalactivation AT katsumikaneko mesoporedevelopmentinactivatedcarbonfibresbyadditionalchemicalactivation |