The hydrogen storage capacity of metal-containing polyacrylonitrile- based electrospun carbon nanofibers
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 12권 / 3호
ㆍ저자명 : ByongCholBai, JongGuKim, Mehraj-ud-dinNaik, JiSunIm, Young-SeakLee
ㆍ저자명 : ByongCholBai, JongGuKim, Mehraj-ud-dinNaik, JiSunIm, Young-SeakLee
목차
1. Introduction2. Experimental
3. Results and Discussion
4. Conclusions
Acknowledgements
References
한국어 초록
Polyacrylonitrile-based carbon nanofibers (CNFs) containing Ti and Mn were prepared byelectrospinning. The effect of metal content on the hydrogen storage capacity of the nanofibers
was evaluated. The nanofibers containing Ti and Mn exhibited maximum hydrogen
adsorption capacities of 1.6 and 1.1 wt%, respectively, at 303 K and 9 MPa. Toward the
development of an improved hydrogen storage system, the optimum conditions for the production
of metalized CNFs were investigated by characterizing the specific surface areas,
pore volumes, sizes, and shapes of the fibers. According to the results of Brunauer-Emmett-
Teller analysis, the activation of the CNFs using potassium hydroxide resulted in a large
pore volume and specific surface area in the samples. This is attributable to the optimized
pore structure of the metal-containing polyacrylonitrile-based electrospun CNFs, which may
provide better sites for hydrogen adsorption than do current adsorbates.
영어 초록
Polyacrylonitrile-based carbon nanofibers (CNFs) containing Ti and Mn were prepared byelectrospinning. The effect of metal content on the hydrogen storage capacity of the nanofiberswas evaluated. The nanofibers containing Ti and Mn exhibited maximum hydrogenadsorption capacities of 1.6 and 1.1 wt%, respectively, at 303 K and 9 MPa. Toward thedevelopment of an improved hydrogen storage system, the optimum conditions for the productionof metalized CNFs were investigated by characterizing the specific surface areas,pore volumes, sizes, and shapes of the fibers. According to the results of Brunauer-Emmett-Teller analysis, the activation of the CNFs using potassium hydroxide resulted in a largepore volume and specific surface area in the samples. This is attributable to the optimizedpore structure of the metal-containing polyacrylonitrile-based electrospun CNFs, which mayprovide better sites for hydrogen adsorption than do current adsorbates.참고 자료
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