Structure-Activity Relationships in Highly Active Platinum-Tin MFI-type Zeolite Catalysts for Propane Dehydrogenation
Structure-Activity Relationships in Highly Active Platinum-Tin MFI-type Zeolite Catalysts for Propane Dehydrogenation
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DOI：
10.1002/cctc.202101828
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发表时间：
2022-02-21
期刊：
影响因子：
4.5
通讯作者：
Beale, Andrew M.
中科院分区：
文献类型：
--
作者：
Lezcano-Gonzalez, Ines;Cong, Peixi;Beale, Andrew M.
一锅法水热合成的含Pt/Sn MFI分子筛是一种高活性、高选择性的丙烷脱氢催化剂。报道了一种替代制备方法，同时对反应前后的Pt和Sn进行了深入表征。分散在高度缺陷的Silicalite-1上的Pt物种显示出显著长的催化寿命，具有改善的抗焦炭性，但增加的Pt Sn合金化和（最终）碳的积累导致失活。
Pt/Sn-containing MFI zeolites prepared by one-pot hydrothermal methods are highly active and selective catalysts for propane dehydrogenation. An alternative preparation method is reported alongside an in-depth characterization of Pt and Sn before and after reaction. Pt species dispersed on highly-defective Silicalite-1 show a significantly long catalytic lifetime with an improved coke resistance, but increased Pt Sn alloying and the (eventual) build-up of carbon leads to deactivation.