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author：

Chen, Y. (Chen, Y..) [1] | Feng, Y. (Feng, Y..) [2] | Li, L. (Li, L..) [3] | Liu, J. (Liu, J..) [4] | Pan, X. (Pan, X..) [5] | Liu, W. (Liu, W..) [6] | Wei, F. (Wei, F..) [7] | Cui, Y. (Cui, Y..) [8] | Qiao, B. (Qiao, B..) [9] | Sun, X. (Sun, X..) [10] | Li, X. (Li, X..) [11] | Lin, J. (Lin, J..) [12] | Lin, S. (Lin, S..) [13] | Wang, X. (Wang, X..) [14] | Zhang, T. (Zhang, T..) [15]

Indexed by：

Scopus

Abstract：

Exclusive　Pt　species　supported　on　inert　substrates　have　not　achieved　satisfactory　performance　for　cryogenic　CO　oxidation　because　of　the　constraint　of　the　competitive　Langmuir-Hinshelwood　process　in　which　the　strongly　adsorbed　CO　inhibits　the　activation　of　O2.　Here,　we　develop　a　catalyst　of　Pt　nanoparticles　on　Al2O3　that　exhibits　extremely　high　activity　with　100%　CO　conversion　at-20　°C　and　orders　of　magnitude　higher　specific　rate　than　current　commercial　catalysts.　Detailed　catalyst　characterizations　reveal　the　presence　of　metallic　Pt　sites　and　positively　charged　ones　associated　with　the　OH　species　in　Pt/Al2O3.　Both　experimental　data　and　theoretical　calculations　suggest　that　CO　adsorbed　on　Pt(OH)　kink　sites　reacts　with　OH　species　covering　Pt　terrace　sites　to　release　CO2.　Afterward,　O2　is　facilely　activated　on　terrace　sites　to　regenerate　OH.　The　presence　of　OH　species　and　the　synergy　between　Pt　kink　and　terrace　sites　on　the　Pt　species　lead　to　an　ultralow　reaction　barrier　for　CO　oxidation.　Copyright　©　2020　American　Chemical　Society.

Keyword：

active site; catalysis; CO oxidation; cryogenic temperatures; platinum

Community：

  • [ 1 ] [Chen, Y.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 2 ] [Chen, Y.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 3 ] [Feng, Y.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 4 ] [Li, L.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 5 ] [Liu, J.]Department of Physics, Arizona State University, Tempe, AZ 85287, United States
  • [ 6 ] [Pan, X.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 7 ] [Liu, W.]Laboratory of Advanced Electron Microscopy Research, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 8 ] [Wei, F.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 9 ] [Cui, Y.]Synchrotron Radiation Laboratory, Laser and Synchrotron Research Center (LASOR), Institute for Solid State Physics, University of Tokyo, 1-490-2 Kouto, Tatsuno, Hyogo, Shingu-cho, 679-14 5165, Japan
  • [ 10 ] [Qiao, B.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 11 ] [Sun, X.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 12 ] [Sun, X.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 13 ] [Li, X.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 14 ] [Li, X.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 15 ] [Lin, J.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 16 ] [Lin, S.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 17 ] [Wang, X.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 18 ] [Zhang, T.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 19 ] [Zhang, T.]State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China

Reprint 's Address：

  • [Lin, J.]Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Cas Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou UniversityChina

Email：


jianlin@dicp.ac.cn
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Source ：

ACS Catalysis

ISSN： 2155-5435

Year： 2020

Issue： 15

Volume： 10

Page： 8815-8824

1 3 . 0 8 4

JCR@2020

1 1 . 7 0 0

JCR@2023

ESI HC Threshold：160

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 60

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

Affiliated Colleges：

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