| STUDIES ON THE CHEMICAL STRUCTURES OFACTIVATED CARBON FIBERS BY SOLID STATE NMR |
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| 引用本文： | FU Ruowen, LIU Ling,ZENG Hanmin,HUANG Wenqiang,SUN Pingchuan(Materials Science Institute,Zhongshan University Guangzhou,China2State key laboratory of functional polymer materials for adsorption and separationNankai University Tianjin,Chinacesfrw@zsulin. STUDIES ON THE CHEMICAL STRUCTURES OFACTIVATED CARBON FIBERS BY SOLID STATE NMR[J]. Chinese Journal of Reactive Polymers, 1999, 0(Z1) |
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| 作者姓名： | FU Ruowen LIU Ling ZENG Hanmin HUANG Wenqiang SUN Pingchuan(Materials Science Institute Zhongshan University Guangzhou China2State key laboratory of functional polymer materials for adsorption and separationNankai University Tianjin Chinacesfrw@zsulin |
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| 作者单位： | Materials Science Institute，Zhongshan University Guangzhou，China2State key laboratory of functional polymer materials for adsorption and separationNankai University Tianjin，Chinacesfrw@zsulin |
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| 摘 要： | 1INTRODUCTIONAsweknoW,theinvestigationofactivatedcarbonfibers(ACFs)hasbecomeaninterestingsubjectincarbonfieldbecauseACFspossessnovelstructures,goodadsorptionabilityandoutstandingoxjdation-reductionpropertyl'].ByuseofsomemoderntechniquessuchasXPS,FTIR,Xosandetc.,peoplehavestUdiedthestructUresofACFsandobtainedsomeinterestingresultS12-].However,therearestillsomelimitsforusingabovetechniquetostudythestructllresofACFs.Forexample,theXPSisonlyusedtostudythebindingstateofatomsonthesurf…
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STUDIES ON THE CHEMICAL STRUCTURES OF ACTIVATED CARBON FIBERS BY SOLID STATE NMR |
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| FU Ruowen, LIU Ling,ZENG Hanmin,HUANG Wenqiang,SUN Pingchuan. STUDIES ON THE CHEMICAL STRUCTURES OF ACTIVATED CARBON FIBERS BY SOLID STATE NMR[J]. 离子交换与吸附(英文版), 1999, 0(Z1) |
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| Authors: | FU Ruowen LIU Ling ZENG Hanmin HUANG Wenqiang SUN Pingchuan |
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| Abstract: | The solid stale C13-NMR spectra of different ACFs from various precursor fiberswere recorded in this paper. The effects of activation conditions on chemical structuresOf ACFs, as well as the changes of chemical structures during carbonization and redoxreaction were investigated by NMR technique. At same time, the solid state P31-NMRspectra of ACFs are studied The C13-NMR spectra of ACFs can be divided into sixbands that are assigned to methyl and methylene groups, hydroxyl and ether groups,acetal (or methylenedioxy carbon, graphite-like aromatic carbon structure, phenol,and quinone groups, respectively. Only phosphorous pentoxide exists on ACFs andCFs. Moreover, most of them are stuck over the crystal face but not at the edge ofgraphite-like micro-crystaL The carbonization and activation conditions affect theC13-NMR spectra of ACFs. The experimental results indicate that the redox reactionof ACFs with oxidants greatly consumes C-H group. |
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| Keywords: | Activated carbon fiber Solid state C13-NMR Solid state P31-NMR Oxidation-reduction |
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