화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터)
권호 22권 2호, p.2408
발표분야 촉매 및 반응공학
제목 Synthesis of LaNiO3 Perovskite by EDTA-Cellulose Method and Comparison with Conventional Pechini Method: Application to Steam CO2 Reforming of Methane
초록 LaNiO3 type perovskite was synthesized by two different methods, and characterized by various techniques such as in-situ and ex-situ XRD, TPR, N2 physisorption, CO chemisorption, TGA, FT - IR, XPS, TPH, TPSR and TEM - EDX. It was found that dried Pechini and EDTA precursors had different polymerization networks, and these two dissimilar bonding and coordination states of each precursor led to differences in physicochemical properties after the calcination. Thus, differences in particle size of perovskite and textural pores, which caused different nickel particle size and nickel particle dispersion after reduction, were obtained for both catalysts. The calcined catalysts were applied to steam CO2 reforming of methane. It was found that the uniform particle size distribution and smaller nickel particle size for LaNiO3 - EDTA brought positive effect on catalytic activity and stability with better carbon resistance for steam CO2 reforming of methane.
저자 양은혁1, 노영수2, 홍기훈2, 신설아2, 문동주2
소속 1UST-KIST, 2KIST
키워드 리포밍촉매
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