Effect of Inherent Anatomy of Plant Fibers on the Morphology of Carbon Synthesized from Them and Their Hydrogen Absorption Capacity
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 13권 / 3호
ㆍ저자명 : MadhuriSharon, MaheshwarSharon
ㆍ저자명 : MadhuriSharon, MaheshwarSharon
목차
Abstract1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References
한국어 초록
Carbon materials were synthesized by pyrolysis from fibers of Corn-straw (Zea mays), Ricestraw(Oryza sativa), Jute-straw (Corchorus capsularis) Bamboo (Bombax bambusa), Bagass
(Saccharum officinarum), Cotton (Bombax malabaricum), and Coconut (Cocos nucifera);
these materials were characterized by scanning electron microscope, X-ray diffraction
(XRD), and Raman spectra. All carbon materials are micro sized with large pores or channel
like morphology. The unique complex spongy, porous and channel like structure of Carbon
shows a lot of similarity with the original anatomy of the plant fibers used as precursor. Waxy
contents like tyloses and pits present on fiber tracheids that were seen in the inherent anatomy
disappear after pyrolysis and only the carbon skeleton remained; XRD analysis shows that
carbon shows the development of a (002) plane, with the exception of carbon obtained from
bamboo, which shows a very crystalline character. Raman studies of all carbon materials
showed the presence of G- and D-bands of almost equal intensities, suggesting the presence
of graphitic carbon as well as a disordered graphitic structure. Carbon materials possessing
lesser density, larger surface area, more graphitic with less of an sp3 carbon contribution, and
having pore sizes around 10 μm favor hydrogen adsorption. Carbon materials synthesized
from bagass meet these requirements most effectively, followed by cotton fiber, which was
more effective than the carbon synthesized from the other plant fibers.
영어 초록
Carbon materials were synthesized by pyrolysis from fibers of Corn-straw (Zea mays), Ricestraw(Oryza sativa), Jute-straw (Corchorus capsularis) Bamboo (Bombax bambusa), Bagass(Saccharum officinarum), Cotton (Bombax malabaricum), and Coconut (Cocos nucifera);these materials were characterized by scanning electron microscope, X-ray diffraction(XRD), and Raman spectra. All carbon materials are micro sized with large pores or channellike morphology. The unique complex spongy, porous and channel like structure of Carbonshows a lot of similarity with the original anatomy of the plant fibers used as precursor. Waxycontents like tyloses and pits present on fiber tracheids that were seen in the inherent anatomydisappear after pyrolysis and only the carbon skeleton remained; XRD analysis shows thatcarbon shows the development of a (002) plane, with the exception of carbon obtained frombamboo, which shows a very crystalline character. Raman studies of all carbon materialsshowed the presence of G- and D-bands of almost equal intensities, suggesting the presenceof graphitic carbon as well as a disordered graphitic structure. Carbon materials possessinglesser density, larger surface area, more graphitic with less of an sp3 carbon contribution, andhaving pore sizes around 10 μm favor hydrogen adsorption. Carbon materials synthesizedfrom bagass meet these requirements most effectively, followed by cotton fiber, which wasmore effective than the carbon synthesized from the other plant fibers.참고 자료
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