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Partial Oxidation of Methane Over the Perovskite Oxides
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作者 Chu, WL Tong, JH +1 位作者 Yang, WS lin, lw 《Chinese Chemical Letters》 SCIE CAS CSCD 2001年第11期975-978,共4页
Ba0.5Sr0.5Co0.8Fe0.2O3-delta and Ba0.5Sr0.5Co0.8Ti0.2O3-delta oxides were synthesized by a combined EDTA-citrate complexing method. The catalytic behavior of these two oxides with the perovskite structure was studied ... Ba0.5Sr0.5Co0.8Fe0.2O3-delta and Ba0.5Sr0.5Co0.8Ti0.2O3-delta oxides were synthesized by a combined EDTA-citrate complexing method. The catalytic behavior of these two oxides with the perovskite structure was studied during the reaction of methane oxidation. The pre-treatment with methane has different effect on the catalytic activities of both the oxides. The methane pre-treatment has not resulted in the change of the catalytic activity of BSCFO owing to its excellent reversibility of the perovskite structure resulting from the excellent synergistic interaction between Co and Fe in the oxide. However, the substitution with Ti on Fe-site in the lattice makes the methane pre-treatment have an obvious influence on the activity of the formed BSCTO oxide. 展开更多
关键词 methane oxidation Ba0.5Sr0.5Co0.8Fe0.2O3-delta Ba0.5Sr0.5Co0.8Ti0.2O3-delta PEROVSKITE
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Lateral growth of silicalite-1 crystal membrane on glass slabs
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作者 Cheng, MJ lin, lw +3 位作者 Yang, YS Yang, WS Xu, YD Li, XS 《Chinese Science Bulletin》 SCIE EI CAS 1997年第1期37-40,共4页
ZEOLITES and molecular sieves are crystallite materials with well-defined and uniform micropore system that can recognize and discriminate molecules according to their sizes and shapes. Therefore, zeolite and molecula... ZEOLITES and molecular sieves are crystallite materials with well-defined and uniform micropore system that can recognize and discriminate molecules according to their sizes and shapes. Therefore, zeolite and molecular sieve crystals serve as host, organizing organic and inorganic guest atoms, molecules, and supramolecular compounds in their channels or cavities, which results in host-guest materials with novel properties in optical data storage, nonlinear optics, electrochemistry and optoelectronics. The general crystallite size of zeolites and 展开更多
关键词 ZEOLITE MEMBRANE SILICALITE-1 LATERAL growth HYDROTHERMAL synthesis.
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