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author：

An, Z. (An, Z..) [1] | Ma, N. (Ma, N..) [2] | Xu, Y. (Xu, Y..) [3] | Yang, H. (Yang, H..) [4] | Zhao, H. (Zhao, H..) [5] | Wu, L. (Wu, L..) [6] | Tan, L. (Tan, L..) [7] | Zou, C. (Zou, C..) [8] | Meng, F. (Meng, F..) [9] | Zhang, B. (Zhang, B..) [10] | Wang, X. (Wang, X..) [11] | Tang, Y. (Tang, Y..) [12]

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Scopus

Abstract：

Harnessing　the　selectivity　in　catalytic　hydrogenation　of　CO2　is　important　for　producing　valuable　chemicals.　Herein,　the　shape　dependency　of　the　CO2　hydrogenation　on　singly　dispersed　Ru/CeO2　catalysts　is　investigated.　CeO2　of　three　shapes,　including　nanocube,　nanooctahedron　and　nanorod,　are　prepared　as　the　catalyst　supports　and　assigned　to　the　surface　of　(100),　(111)　and　(110)　crystal　plane,　respectively.　The　Ru/CeO2　(nanorod)　exhibits　the　highest　selectivity　to　CO　(97.6　%)　at　350　°C,　while　the　Ru/CeO2　(nanocube)　exhibits　a　mediocre　selectivity　to　CO　(41.4　%)　but　the　highest　CO2　conversion.　The　shape　of　the　CeO2　support　determines　the　electronic　state　of　supported　Ru　atoms　through　the　electronic　metal-support　interaction.　The　low　CO　affinity　on　cationic　Ruβ　sites　leads　to　the　higher　selectivity　to　CO　on　the　Ru/CeO2　(nanorod)　and　Ru/CeO2　(nanooctahedron)　catalysts,　while　the　strong　dissociation　ability　of　H2　on　low　valence　Ruα　sites　results　in　the　high　activity　on　the　Ru/CeO2　(nanocube)　catalyst.　©　2023　Elsevier　Inc.

Keyword：

Ceria CO2 hydrogenation Electronic metal-support interaction Ruthenium Shape effect

Community：

  • [ 1 ] [An Z.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Ma N.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Xu Y.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Yang H.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Zhao H.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Wu L.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Tan L.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Zou C.]Functional Coordination Material Group-Frontier Research Center, Songshan Lake Materials Laboratory, Dongguan, 523808, China
  • [ 9 ] [Meng F.]State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
  • [ 10 ] [Zhang B.]State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
  • [ 11 ] [Wang X.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 12 ] [Tang Y.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China

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Source ：

Journal of Catalysis

ISSN： 0021-9517

Year： 2024

Volume： 429

6 . 5 0 0

JCR@2023

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SCOPUS Cited Count： 4

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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