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author：

Chen, Yang (Chen, Yang.) [1] | Feng, Yingxin (Feng, Yingxin.) [2] | Li, Lin (Li, Lin.) [3] | Liu, Jingyue (Liu, Jingyue.) [4] | Pan, Xiaoli (Pan, Xiaoli.) [5] | Liu, Wei (Liu, Wei.) [6] | Wei, Fenfei (Wei, Fenfei.) [7] | Cui, Yitao (Cui, Yitao.) [8] | Qiao, Botao (Qiao, Botao.) [9] | Sun, Xiucheng (Sun, Xiucheng.) [10] | Li, Xiaoyu (Li, Xiaoyu.) [11] | Lin, Jian (Lin, Jian.) [12] | Lin, Sen (Lin, Sen.) [13] (Scholars：林森) | Wang, Xiaodong (Wang, Xiaodong.) [14] | Zhang, Tao (Zhang, Tao.) [15]

Indexed by：

EI Scopus SCIE

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　O-2.　Her;　we　develop　a　catalyst　of　Pt　nanoparticles　on　Al2O3　that　exhibits　extremely　high　activity　with　100%　CO　conversion　at　-20　degrees　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-0　terrace　sites　to　release　CO2.　Afterward,　O-2　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.

Keyword：

active site catalysis CO oxidation cryogenic temperatures platinum

Community：

  • [ 1 ] [Chen, Yang]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 2 ] [Li, Lin]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 3 ] [Pan, Xiaoli]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 4 ] [Qiao, Botao]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 5 ] [Sun, Xiucheng]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 6 ] [Li, Xiaoyu]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 7 ] [Lin, Jian]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 8 ] [Wang, Xiaodong]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 9 ] [Zhang, Tao]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China
  • [ 10 ] [Feng, Yingxin]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China
  • [ 11 ] [Wei, Fenfei]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China
  • [ 12 ] [Lin, Sen]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China
  • [ 13 ] [Chen, Yang]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 14 ] [Pan, Xiaoli]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 15 ] [Sun, Xiucheng]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 16 ] [Li, Xiaoyu]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 17 ] [Liu, Jingyue]Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
  • [ 18 ] [Liu, Wei]Chinese Acad Sci, Dalian Inst Chem Phys, Lab Adv Electron Microscopy Res, Dalian 116023, Peoples R China
  • [ 19 ] [Cui, Yitao]Univ Tokyo, Synchrotron Radiat Lab, Laser & Synchrotron Res Ctr LASOR, Tatsuno, Hyogo 679145165, Japan
  • [ 20 ] [Zhang, Tao]Chinese Acad Sci, Dalian 116023, Peoples R China

Reprint 's Address：

  • 林森

    [Lin, Jian]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China;;[Wang, Xiaodong]Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Sci & Technol Appl Catalysis, Dalian 116023, Peoples R China;;[Lin, Sen]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China

Email：


jianlin@dicp.ac.cn |
slin@fzu.edu.cn |
xdwang@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 Discipline： CHEMISTRY;

ESI HC Threshold：160

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count： 70

SCOPUS Cited Count： 67

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

Affiliated Colleges：

化学学院 本学院/部未明确归属的数据

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