dc.contributor.author
Hemauer, Felix
dc.contributor.author
Schwaab, Valentin
dc.contributor.author
Freiberger, Eva Marie
dc.contributor.author
Waleska, Natalie J.
dc.contributor.author
Leng, Andreas
dc.contributor.author
Weiß, Cornelius
dc.contributor.author
Steinhauer, Johann
dc.contributor.author
Düll, Fabian
dc.contributor.author
Bachmann, Philipp
dc.contributor.author
Papp, Christian
dc.date.accessioned
2023-05-24T08:18:14Z
dc.date.available
2023-05-24T08:18:14Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/39511
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-39229
dc.description.abstract
Novel energy-storage solutions are necessary for the transition from fossil to renewable energy sources. Auspicious candidates are so-called molecular solar thermal (MOST) systems. In our study, we investigate the surface chemistry of a derivatized norbornadiene/quadricyclane molecule pair. By using suitable push–pull substituents, a bathochromic shift of the absorption onset is achieved, allowing a greater overlap with the solar spectrum. Specifically, the adsorption and thermally induced reactions of 2-carbethoxy-3-phenyl-norbornadiene/quadricyclane are assessed on Pt(111) and Ni(111) as model catalyst surfaces by synchrotron radiation-based X-ray photoelectron spectroscopy (XPS). Comparison of the respective XP spectra enables the distinction of the energy-rich molecule from its energy-lean counterpart and allows qualitative information on the adsorption motifs to be derived. Monitoring the quantitative cycloreversion between 140 and 230 K spectroscopically demonstrates the release of the stored energy to be successfully triggered on Pt(111). Heating to above 300 K leads to fragmentation of the molecular framework. On Ni(111), no conversion of the energy-rich compound takes place. The individual decomposition pathways of the two isomers begin at 160 and 180 K, respectively. Pronounced desorption of almost the entire surface coverage only occurs for the energy-lean molecule on Ni(111) above 280 K; this suggests weakly bound species. The correlation between adsorption motif and desorption behavior is important for applications of MOST systems in heterogeneously catalyzed processes.
en
dc.format.extent
10 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
energy storage
en
dc.subject
photoelectron spectroscopy
en
dc.subject
surface reactions
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
dc.title
Surface Studies on the Energy Release of the MOST System 2-Carbethoxy-3-Phenyl-Norbornadiene/Quadricyclane (PENBD/PEQC) on Pt(111) and Ni(111)
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
e202203759
dcterms.bibliographicCitation.doi
10.1002/chem.202203759
dcterms.bibliographicCitation.journaltitle
Chemistry - A European Journal
dcterms.bibliographicCitation.number
25
dcterms.bibliographicCitation.volume
29
dcterms.bibliographicCitation.url
https://doi.org/10.1002/chem.202203759
refubium.affiliation
Biologie, Chemie, Pharmazie
refubium.affiliation.other
Institut für Chemie und Biochemie
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1521-3765
refubium.resourceType.provider
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