Synthesis of Pt-SnOx/TS-1@SBA-16 Composites and Their High Catalytic Performance for Propane Dehydrogenation

• 来源期刊: 高等学校化学研究（英文版）
• 年，卷（期）: 2019,（5）
• 页码范围: 866-873
• 页数: 8页
• 语种: 英文
• DOI: 10.1007/s40242-019-9120-7

摘要

A novel composite material of TS-1@SBA-l6 was synthesized by enwrapping TS-1 zeolite crystals with mesoporous SBA-16 silica.This composite was used as catalyst support for loading Pt-SnOx in the propane dehydrogenation(PDH) reaction.Catalysts were characterized by means of N2 adsorption-desorption,XRD,SEM,TEM,XPS,UV-Vis,and Raman spectroscopy.The effect of different contents of TS-1 on PDH was investigated,and the optimal amount of TS-1 was determined to be 10％.The catalyst with TS-1 content of 10％ showed the highest PDH activity and the initial conversion of propane over it can achieve 54.5％,higher than those over TS-1 or SBA-16-supported ones.The superior catalytic performance of Pt-SnOx/TS-1@SBA-16 is related to the synergistic effect of the excellent mass transfer performance through the hierarchical porous structure,suitable acid acidity and electronic effect of Ti species.