Mn-doping induced changes in Pt dispersion and PtxMny alloying extent on Pt/Mn-DMSN catalyst with enhanced propane dehydrogenation stability

doi:10.1016/j.jcat.2020.06.016

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	Mn-doping induced changes in Pt dispersion and PtxMny alloying extent on Pt/Mn-DMSN catalyst with enhanced propane dehydrogenation stability
	Fan, Xiaoqiang 2; Liu, Dandan 2; Sun, Xiaoying 2; Yu, Xuehua 2; Li, Dong 2; Yang, Ying 2; Liu, Hongyang 1; Diao, Jiangyong 1; Xie, Zean 2; Kong, Lian 2
刊名	JOURNAL OF CATALYSIS
	2020-09-01
卷号	389 页码:450-460
关键词	Propane dehydrogenation Mn-doping effect Highly dispersed PtMn alloy sites Enhanced stability
ISSN号	0021-9517
DOI	10.1016/j.jcat.2020.06.016
通讯作者	Zhao, Zhen(zhenzhao@cup.edu.cn)
英文摘要	The development of highly stable propane dehydrogenation catalyst is significant with the growing extraction of shale gas in the world. A highly dispersed MnOx site decorated dendritic mesoporous silica nanoparticle support was prepared by simple in-situ emulsion method. It shows exceptionally ability to disperse and stabilize Pt clusters. The strong interaction between Pt and Mn formed and the electron transfer happened from Mn to Pt, which leads to an increase in the electron density of Pt. The high propane dehydrogenation activity, even for 100 h long-term test, was obtained on moderate Mn content catalyst. According to the experimental results and DFT calculation, the highly dispersed PtMn alloyed nanoparticles play an important role in enhancing the catalytic performance for propane dehydrogenation via a good balance on propane activation and propene desorption. (C) 2020 Elsevier Inc. All rights reserved.
资助项目	National Natural Science Foundation of China[91845201] ; National Natural Science Foundation of China[21603148] ; Science and Technology Research Planning Project of Shenyang City[Z175-056] ; Doctoral Start-up Foundation of Liaoning Province[20180540021] ; Program for Excellent Talents in Shenyang Normal University[222-51300409] ; Doctoral Scientific Research Foundation of Shenyang Normal University[BS201619]
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000566793000015
资助机构	National Natural Science Foundation of China ; Science and Technology Research Planning Project of Shenyang City ; Doctoral Start-up Foundation of Liaoning Province ; Program for Excellent Talents in Shenyang Normal University ; Doctoral Scientific Research Foundation of Shenyang Normal University
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140463]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhao, Zhen
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Shenyang Noma Univ, Inst Catalysis Energy & Environm, Shenyang 110034, Peoples R China 3.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
推荐引用方式 GB/T 7714	Fan, Xiaoqiang,Liu, Dandan,Sun, Xiaoying,et al. Mn-doping induced changes in Pt dispersion and PtxMny alloying extent on Pt/Mn-DMSN catalyst with enhanced propane dehydrogenation stability[J]. JOURNAL OF CATALYSIS,2020,389:450-460.
APA	Fan, Xiaoqiang.,Liu, Dandan.,Sun, Xiaoying.,Yu, Xuehua.,Li, Dong.,...&Zhao, Zhen.(2020).Mn-doping induced changes in Pt dispersion and PtxMny alloying extent on Pt/Mn-DMSN catalyst with enhanced propane dehydrogenation stability.JOURNAL OF CATALYSIS,389,450-460.
MLA	Fan, Xiaoqiang,et al."Mn-doping induced changes in Pt dispersion and PtxMny alloying extent on Pt/Mn-DMSN catalyst with enhanced propane dehydrogenation stability".JOURNAL OF CATALYSIS 389(2020):450-460.