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author：

He, Y. (He, Y..) [1] | Deng, H. (Deng, H..) [2] | Zhang, Y. (Zhang, Y..) [3] | Wang, X. (Wang, X..) [4] | Zheng, W. (Zheng, W..) [5] | Ren, Z. (Ren, Z..) [6] | Tan, L. (Tan, L..) [7] | Tang, Y. (Tang, Y..) [8] | Wu, L. (Wu, L..) [9]

Indexed by：

Scopus

Abstract：

Utilizing　the　confinement　effect　of　zeolite　pores　to　stabilize　active　sites　has　been　developed　for　the　improvement　of　catalytic　stability　and　performance.　Herein,　a　facile　strategy　is　proposed　to　synthesize　a　Sn　stabilizing　dispersed　Ptδ+　sites　confined　in　zeolite　pore　catalyst　via　Ar　calcination　for　propane　dehydrogenation　(PDH).　0.2Pt/0.5Sn-S-1-Ar　shows　excellent　propylene　formation　rate　of　10.0　mol　C3H6·gPt−1·h−1　and　propylene　selectivity　higher　than　99.5%　at　450　°C,　and　the　superior　catalyst　stability　in　200　h　on-stream.　And　it　has　the　lowest　apparent　activation　energy　barrier　of　18.45　KJ/mol　over　Pt-based　catalyst　for　PDH　to　our　knowledge.　According　to　systemic　characterizations,　it　is　demonstrated　that　the　implantation　of　Sn　into　Silicalite-1　framework　before　introducing　Pt　is　essential　to　generate　the　highly　dispersed　Ptδ+　species　confined　in　zeolite　pore,　and　the　Ptδ+　species　confined　in　zeolite　pore　with　stronger　propane　adsorption　and　propylene　desorption　ability　is　responsible　for　superior　PDH　performance.　©　2023　Elsevier　Ltd

Keyword：

Confinement effect Low activation energy Low temperature Propane dehydrogenation Pt/Sn-S-1

Community：

  • [ 1 ] [He Y.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Deng H.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Zhang Y.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Wang X.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Zheng W.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Ren Z.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Tan L.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Tang Y.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 9 ] [Wu L.]Institute of Molecular Catalysis and In-situ/operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China

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Fuel

ISSN： 0016-2361

Year： 2023

Volume： 352

6 . 7

JCR@2023

6 . 7 0 0

JCR@2023

ESI HC Threshold：35

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 9

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

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