Adsorptivities of Extremely High Surface Area Activated Carbon Fibres for CH and H
Activated carbon fibres with extremely high surface areas (ACFs) were prepared by CO 2 re-activation using pitch-based ACFs having an original surface area of 1730 m 2 /g. The highest surface area of the re-activated ACFs was 2930 m 2 /g as determined from an α S -plot analysis of the nitrogen adsor...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2009-11-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.27.9.877 |
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| Summary: | Activated carbon fibres with extremely high surface areas (ACFs) were prepared by CO 2 re-activation using pitch-based ACFs having an original surface area of 1730 m 2 /g. The highest surface area of the re-activated ACFs was 2930 m 2 /g as determined from an α S -plot analysis of the nitrogen adsorption isotherm measured at 77 K. The ACF with the highest surface area showed excellent adsorptivity towards supercritical CH 4 and H 2 . The amounts of CH 4 and H 2 adsorbed were enhanced by 52% and 30%, respectively, as a result of re-activation. |
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| ISSN: | 0263-6174 2048-4038 |