Influence of phosphoric acid treatment on hydrogen adsorption behaviors of activated carbons
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 12권 / 2호
ㆍ저자명 : 유혜민, 이슬이, 김병주, 박수진
ㆍ저자명 : 유혜민, 이슬이, 김병주, 박수진
목차
1. Introduction2. Experimental
3. Results and Discussion
4. Conclusions
References
한국어 초록
The scope of this work investigates the relationship between the amount of oxygen-functionalgroups and hydrogen adsorption capacity with different concentrations of phosphoric
acid. The amount of oxygen-functional groups of activated carbons (ACs) is characterized
by X-ray photoelectron spectroscopy. The effects of chemical treatments on the pore structures
of ACs are investigated by N2/77 K adsorption isotherms. The hydrogen adsorption
capacity is measured by H2 isothermal adsorption at 298 K and 100 bar. In the results, the
specific surface area and pore volume slightly decreased with the chemical treatments due
to the pore collapsing behaviors, but the hydrogen storage capacity was increased by the
oxygen-functional group characteristics of AC surfaces, resulting from enhanced electron
acceptor-donor interaction at interfaces.
Key words: hydrogen storage, activated carbon, chemical treatments
영어 초록
The scope of this work investigates the relationship between the amount of oxygen-functionalgroups and hydrogen adsorption capacity with different concentrations of phosphoricacid. The amount of oxygen-functional groups of activated carbons (ACs) is characterizedby X-ray photoelectron spectroscopy. The effects of chemical treatments on the pore structuresof ACs are investigated by N2/77 K adsorption isotherms. The hydrogen adsorptioncapacity is measured by H2 isothermal adsorption at 298 K and 100 bar. In the results, thespecific surface area and pore volume slightly decreased with the chemical treatments dueto the pore collapsing behaviors, but the hydrogen storage capacity was increased by theoxygen-functional group characteristics of AC surfaces, resulting from enhanced electronacceptor-donor interaction at interfaces.Key words: hydrogen storage, activated carbon, chemical treatments참고 자료
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