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Graphene as an Adso...
Graphene as an Adsorption Template for Studying Double Bond Activation in Catalysis
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- Boix, Virginia (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,Other operations, LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH
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- Xu, Wenbin (författare)
- Fritz Haber Institute of the Max Planck Society,Technical University of Munich
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- D'Acunto, Giulio (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,Other operations, LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH
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visa fler...
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- Stubbe, Johannes (författare)
- Lund University
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- Gallo, Tamires (författare)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Døvre Strømsheim, Marie (författare)
- Norwegian University of Science and Technology
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- Zhu, Suyun (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Scardamaglia, Mattia (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Shavorskiy, Andrey (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Reuter, Karsten (författare)
- Fritz Haber Institute of the Max Planck Society
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- Andersen, Mie (författare)
- Aarhus University
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- Knudsen, Jan (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,MAX IV-laboratoriet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LTH profilområde: Avancerade ljuskällor,Other operations, LTH,Faculty of Engineering, LTH,MAX IV Laboratory,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2022-08-16
- 2022
- Engelska 9 s.
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Ingår i: Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 126:33, s. 14116-14124
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Hydrogenated graphene (H-Gr) is an extensively studied system not only because of its capabilities as a simplified model system for hydrocarbon chemistry but also because hydrogenation is a compelling method for Gr functionalization. However, knowledge of how H-Gr interacts with molecules at higher pressures and ambient conditions is lacking. Here we present experimental and theoretical evidence that room temperature O2exposure at millibar pressures leads to preferential removal of H dimers on H-functionalized graphene, leaving H clusters on the surface. Our density functional theory (DFT) analysis shows that the removal of H dimers is the result of water or hydrogen peroxide formation. For water formation, we show that the two H atoms in the dimer motif attack one end of the physisorbed O2molecule. Moreover, by comparing the reaction pathways in a vacuum with the ones on free-standing graphene and on the graphene/Ir(111) system, we find that the main role of graphene is to arrange the H atoms in geometrical positions, which facilitates the activation of the O═O double bond.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Till lärosätets databas
- Av författaren/redakt...
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Boix, Virginia
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Xu, Wenbin
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D'Acunto, Giulio
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Stubbe, Johannes
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Gallo, Tamires
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Døvre Strømsheim ...
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visa fler...
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Zhu, Suyun
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Scardamaglia, Ma ...
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Shavorskiy, Andr ...
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Reuter, Karsten
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Andersen, Mie
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Knudsen, Jan
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Oorganisk kemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Den kondenserade ...
- Artiklar i publikationen
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Journal of Physi ...
- Av lärosätet
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Lunds universitet