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Abstract：
Deactivation caused by the aggregation of Pt nanoparticles is a critical issue for the high-temperature propane dehydrogenation (PDH) reaction. Carbon nanotubes (CNTs) that were rich/poor in defects (CNTs-RD/CNTs-PD) were applied as supports for the PDH reaction. Pt nanoparticles supported on defect-rich CNTs (Pt/CNTs-RD) showed much higher performance and stability during the PDH reaction than those supported on defect-poor CNTs. X-ray photoelectron spectroscopy (XPS) results showed that there was little change between the fresh and spent Pt/CNTs-RD catalysts. High-resolution transmission electron microscopy (HRTEM) and simulation results both suggested the presence of strong metal-support interactions between the defects and Pt nanoparticles that could effectively inhibit the agglomeration of Pt nanoparticles, increase the anti-coking ability, and thus enhance the stability and activity of Pt/CNTs-RD during the high-temperature PDH reaction. The oxygen-containing groups and confinement effect of CNTs had a weaker influence on the catalyst activity.
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Source ：
APPLIED SURFACE SCIENCE
ISSN： 0169-4332
Year： 2019
Volume： 464
Page： 146-152
6 . 1 8 2
JCR@2019
6 . 3 0 0
JCR@2023
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：236
JCR Journal Grade：1
CAS Journal Grade：1
Cited Count：
WoS CC Cited Count： 35
SCOPUS Cited Count： 37
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 6
Affiliated Colleges：
