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Dynamic structure o...
Dynamic structure of active sites in ceria-supported Pt catalysts for the water gas shift reaction
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- Li, Yuanyuan (author)
- SUNY Stony Brook, Dept Mat Sci & Chem Engn, Stony Brook, NY 11794 USA.
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- Kottwitz, Matthew (author)
- Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
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- Vincent, Joshua L. (author)
- Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA.
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- Enright, Michael J. (author)
- Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
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- Liu, Zongyuan (author)
- Brookhaven Natl Lab, Chem Div, Upton, NY 11973 USA.
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- Zhang, Lihua (author)
- Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
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- Huang, Jiahao (author)
- SUNY Stony Brook, Dept Mat Sci & Chem Engn, Stony Brook, NY 11794 USA.
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- Senanayake, Sanjaya D. (author)
- Brookhaven Natl Lab, Chem Div, Upton, NY 11973 USA.
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- Yang, Wei-Chang D. (author)
- NIST, Phys Measurement Lab, Gaithersburg, MD 20899 USA.;Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA.;Univ Maryland, Maryland NanoCtr, College Pk, MD 20742 USA.
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- Crozier, Peter A. (author)
- Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA.
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- Nuzzo, Ralph G. (author)
- KTH,Yt- och korrosionsvetenskap,Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
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- Frenkel, Anatoly, I (author)
- SUNY Stony Brook, Dept Mat Sci & Chem Engn, Stony Brook, NY 11794 USA.;Brookhaven Natl Lab, Chem Div, Upton, NY 11973 USA.
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SUNY Stony Brook, Dept Mat Sci & Chem Engn, Stony Brook, NY 11794 USA Univ Illinois, Dept Chem, Urbana, IL 61801 USA. (creator_code:org_t)
- 2021-02-10
- 2021
- English.
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In: Nature Communications. - : Springer Nature. - 2041-1723. ; 12:1
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Abstract
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- Oxide-supported noble metal catalysts have been extensively studied for decades for the water gas shift (WGS) reaction, a catalytic transformation central to a host of large volume processes that variously utilize or produce hydrogen. There remains considerable uncertainty as to how the specific features of the active metal-support interfacial bonding-perhaps most importantly the temporal dynamic changes occurring therein-serve to enable high activity and selectivity. Here we report the dynamic characteristics of a Pt/CeO2 system at the atomic level for the WGS reaction and specifically reveal the synergistic effects of metal-support bonding at the perimeter region. We find that the perimeter Pt-0-O vacancy-Ce3+ sites are formed in the active structure, transformed at working temperatures and their appearance regulates the adsorbate behaviors. We find that the dynamic nature of this site is a key mechanistic step for the WGS reaction. Revealing the structure and dynamics of active sites is essential to understand catalytic mechanisms. Here the authors demonstrate the dynamic nature of perimeter Pt-0-O vacancy-Ce3+ sites in Pt/CeO2 and the key effects of their dynamics on the mechanism of the water gas shift reaction.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Li, Yuanyuan
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Kottwitz, Matthe ...
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Vincent, Joshua ...
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Enright, Michael ...
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Liu, Zongyuan
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Zhang, Lihua
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show more...
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Huang, Jiahao
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Senanayake, Sanj ...
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Yang, Wei-Chang ...
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Crozier, Peter A ...
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Nuzzo, Ralph G.
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Frenkel, Anatoly ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
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Nature Communica ...
- By the university
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Royal Institute of Technology