石油化工2012，Vol.41Issue(3)：288-294,7.
Co/TUD-1催化1,2-二苯乙烯环氧化反应
Epoxidation of trans-Stilbene over Highly Dispersed Co/TUD-1Catalysts
摘要
Abstract
Co/TUD-1 catalysts with different Co loadings were synthesized by atomic layer deposition(ALD) method using cobalt acetylacetonate( H) as the precursor and were characterized by means of XRD, N2 adsorption-desorption, DRS and H2-TPR. Activity of the prepared catalysts in epoxidation of Svww-stilbene with oxygen was investigated. The results showed that the Co species on TUD-1 molecular sieves existed mainly in the form of highly dispersed CoOx when the Co content was not more than 4.0%(w), whereas higher Co content would lead to formation of a large amount of Co3O4 clusters outside and inside the channels of the TUD-1 molecular sieves. Compared with the catalysts prepared by impregnation or hydrothermal method with the same Co content, Co/TUD-1 catalyst prepared by ALD method exhibited high activity in epoxidation of trwts-stilbene. Under the conditions of reaction temperature 100 ℃, reaction time 6 h and Co/TUD-1 with Co loading 4.0% as the catalyst, the conversion of frans-stilbene and the selectivity to epoxide were 49.3% and 96.8%, respectively.关键词
TUD-1分子筛/钴催化剂/1,2-二苯乙烯/氧气/乙酰丙酮钴/环氧化Key words
TUD-1 molecular sieve/ cobalt catalyst/ trans-stilbene/ oxygen/ cobalt acetylacetonate/ epoxidation分类
化学化工引用本文复制引用
汤清虎,石倩倩,乔冉,赵培正,赵培真..Co/TUD-1催化1,2-二苯乙烯环氧化反应[J].石油化工,2012,41(3):288-294,7.基金项目
河南省高校科技创新人才支持计划(2010HASTIT028). （2010HASTIT028）
