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author：

Zhang, Y. (Zhang, Y..) [1] | Wang, X. (Wang, X..) [2] | Deng, H. (Deng, H..) [3] | Sun, Q. (Sun, Q..) [4] | Li, B. (Li, B..) [5] | Zheng, W. (Zheng, W..) [6] | Ren, Z. (Ren, Z..) [7] | Fang, X. (Fang, X..) [8] | Tan, L. (Tan, L..) [9] | Tang, Y. (Tang, Y..) [10] | Wu, L. (Wu, L..) [11]

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Scopus

Abstract：

Pt-based　catalysts　have　been　widely　investigated　in　propane　dehydrogenation　(PDH)　owing　to　their　high　activity　in　C-H　activation,　while　it　suffers　from　Pt　sintering　and　coke　deposition.　We　develop　a　transition　metal　Fe　and　zeolite　support　synergistic-modified　method　to　realize　the　highly　dispersed　and　stable　Pt　species　inside　zeolite　over　Pt/Fe-silicate-1.　And　it　shows　the　excellent　PDH　performance　with　propylene　generation　rate　of　51.6　mol　C3H6　gPt−1　h−1　and　low　deactivation　rate　constant　kd　of　0.017　h−1　as　well　as　a　high　TOFPt　of　37.6　s−1　at　550°C.　The　systematic　characterizations　reveal　the　isolated　Fe3+　species　could　significantly　improve　Pt　dispersity　and　regulate　Pt　electronic　density　to　realize　a　more　positive　Ptδ+　species　inside　Silicalite-1　pore.　And　the　further　in　situ　DRIFTS　experiments　demonstrate　that　the　synergistic　effect　between　the　appropriate　acidic　Fe　sites　and　the　highly　dispersed　Ptδ+　species　around　Fe　species　are　responsible　for　the　superior　PDH　performance.　©　2023　American　Institute　of　Chemical　Engineers.

Keyword：

isolated Fe3+ propane dehydrogenation Pt/Fe-S-1 Ptδ+ synergistic effect

Community：

  • [ 1 ] [Zhang Y.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 2 ] [Wang X.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 3 ] [Deng H.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 4 ] [Sun Q.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 5 ] [Li B.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 6 ] [Zheng W.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 7 ] [Ren Z.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 8 ] [Fang X.]Xi'an Aeronautical University, Shaanxi Province, Xi'an, China
  • [ 9 ] [Tan L.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 10 ] [Tang Y.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 11 ] [Wu L.]Institute of Molecular Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, China

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Source ：

AIChE Journal

ISSN： 0001-1541

Year： 2023

Issue： 12

Volume： 69

3 . 5

JCR@2023

3 . 5 0 0

JCR@2023

JCR Journal Grade：2

CAS Journal Grade：3

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 5

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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