2000 Fiscal Year Final Research Report Summary
Control of pore size and introduction of fanctional group on the surface of porous carbon by CVD
| Project/Area Number |
09450019
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| Research Category |
Grant-in-Aid for Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
表面界面物性
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
MOCHIDA Isao KYUSHU UNIVERSITY, Institute of Advanced Material Study, prof., 機能物質科学研究所, 教授 (20037758)
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| Co-Investigator(Kenkyū-buntansha) |
KORAI Yozo KYUSHU UNIVERSITY, Institute of Advanced Material Study, ass.prof., 機能物質科学研究所, 助教授 (50122693)
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| Project Period (FY) |
1997 – 2000
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| Keywords | CVD / molecular sieve / activated carbon / micropore / pore size / benzene / pyridine / mesopore |
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| Research Abstract |
Pore size control of a series of active carbon fibers was attempted by CVD of benzene to clarify the influences of the pore distribution. Weight increase by CVD was found saturated at the certain level respective to the fiber, reflecting the their surface areas. However, the molecular sieving selectivity between CO_2 and CH_4 was induced only to the fibers of smaller surface area, while the fibers of larger surface areas lost the adsorption activity against both gases. Straight micropores developed from the surface are controlled at their slit size by carbon deposition onto the wall surface while benzene molecule can get into the pore. In contrast, the pore size of micropores developed on the wall of mesopore are difficult to be controlled since the carbon deposit continues until the whole wall of the mesopores is covered by the carbon to plug the micropores.
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