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논문 기본 정보

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동향자료
저자정보
Yoo, Hye-Min (Department of Chemistry, Inha University) Lee, Seul-Yi (Department of Chemistry, Inha University) Kim, Byung-Joo (Smart Composite Material Research Team, Carbon Valley R&D Division, Jeonju Institute of Machinery and Carbon Composites) Park, Soo-Jin (Department of Chemistry, Inha University)
저널정보
한국탄소학회 Carbon letters Carbon letters 제12권 제2호
발행연도
2011.1
수록면
112 - 115 (4page)

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The scope of this work investigates the relationship between the amount of oxygen-functional groups 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 $N_2$/77 K adsorption isotherms. The hydrogen adsorption capacity is measured by $H_2$ 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.

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