摘要
The structure and catalytic properties of SrTiO3 perovskite-type oxide catalysts for oxidative coupling of methane (OCM) have been studied by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and microreactor tests. It has been shown that OCM catalytic properties of SrTiO3 catalysts are correlated to the Sr/Ti atomic ratio. Increasing Sr/Ti ratio in the perovskite?-type SrTiO3 catalysts results in the surface enrichment of Sr element, leading to the the higher content of adsorbed oxygen species on the surface of catalysts and thus higher C2 selectivity for OCM reaction.
The structure and catalytic properties of SrTiO3 perovskite-type oxide catalysts for oxidative coupling of methane (OCM) have been studied by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and microreactor tests. It has been shown that OCM catalytic properties of SrTiO3 catalysts are correlated to the Sr/Ti atomic ratio. Increasing Sr/Ti ratio in the perovskite-type SrTiO3 catalysts results in the surface enrichment of Sr element, leading to the the higher content of adsorbed oxygen species on the surface of catalysts and thus higher C-2 selectivity for OCM reaction.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2004年第8期967-970,共4页
Chinese Journal of Inorganic Chemistry
基金
国家重点基础研究发展规划项目(No.G1999022400)
南京大学分析测试基金资助课题。
