화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2014년 가을 (10/22 ~ 10/24, 대전 DCC)
권호 20권 2호, p.2127
발표분야 촉매 및 반응공학
제목 Size effect of Ni-supported SiO2-catalysts covered by porous SiO2 for dry reforming of methane  
초록 Recently, greenhouse gas issue is being magnified as a new controversy. Greenhouse gas is composed of CO2 and CH4. So a demand for reduction of greenhouse gas is increased. Among various reforming reactions, dry reforming of methane (DRM) reaction has studied actively. In comparison with the noble metals (Rh, Ru), Ni catalysts show good activity for this reaction and have very cheap cost, but have poorer durability than noble metal catalyst. And Ni size effect is not yet established because of particle sintering and coke formation.
Here, we have synthesized Silica-coated Ni/SiO2 catalyst with various size of Ni nanoparticle, showed high durability for DRM reaction performed at 1073K. The catalyst maintained its initial activity for 100hrs. And theses catalysts show no particle sintering and coke formation.
저자 박준성1, 한정우1, 배윤상1, 이현주2
소속 1연세대, 2한국과학기술원
키워드 DRM; Ni catalyst; size effect; coating
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