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Te掺杂对MoPO/SiO_2催化剂上丙烷选择氧化制丙烯醛反应的影响
Authors
万惠霖
伊晓东
+6 more
何益明
林洪
翁维正
陈陆千
韩智三
黄传敬
Publication date
30 June 2005
Publisher
Abstract
考察了Te的添加及Te含量对MoPO/SiO2催化剂催化丙烷选择氧化制丙烯醛反应性能的影响.MoPO/SiO2催化剂对丙烷选择氧化制丙烯醛反应的中间产物丙烯选择性较高,而Te的添加促进了丙烯向丙烯醛的转化.N2吸附、XRD、Raman、XPS、H2-TPR、丙烷脉冲、NH3-TPD和Py-IR等实验结果表明,催化剂添加Te后虽然比表面积有所下降,但单位比表面积上的酸量增加,催化剂低温可还原性得到改善,从而有利于丙烷的转化.Te可能有利于丙烯α-H的脱除和/或烯丙基的插氧反应
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Last time updated on 16/06/2016