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  • 09월 06일 15시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Gas adsorption properties of modified GO by chemical activation

2013년 8월 29일 10시 06분 58초
IND.P-81 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 16일 (수요일) 16:00~19:00
저자 및
이상문, 홍원기, 이진배*
한국기초과학지원연구원 물성과학연구부, Korea

Activated carbon adsorbents are one of the most extensively used materials for gas adsorption. Carbon dioxide and hydrogen gas storage technology based on physisorption of gases has gained considerable interest in recent years. While most of the recent study focuses on enhancing the adsorption capacity, there is still a insufficiency of understanding of the fundamentals involved in such gas adsorption process. Grephene has a theoretical Surface area of 2630m2/g and a very high intrinsic electrical conductivity in plane as well as high mechanical strength and chemical stability. Graphene-based material derived from graphite oxdie(GO) is now being manufactured in ton quantities at low cost. Here, we report a simple activation with KOH of microwave reduced GO(MrGO). We prepared MrGO powders by irradiating GO in microwave oven. The as-made MrGO powder was then placed in KOH solution, followed by filtration and drying, to form a MrGO/KOH mixtures for chemical activation. MrGO/KOH mixture was put in a tube furnace under flowing nitrogen and heated at 8000C for 1hr. KOH activation has been extensively used to obtain porous carbons and improved porosity and enhanced adsorption performance were reported. Gas adsorption study of modified GO was performed with the observation of adsorption-desorption isotherms of nitrogen, hydrogen, carbon dioxide, oxygen gases.