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Schürmann R, Ebel K, Nicolas C, et al. Role of Valence Band States and Plasmonic Enhancement in Electron-Transfer-Induced Transformation of Nitrothiophenol. J Phys Chem Lett. 2019;10(11):3153-3158doi: 10.1021/acs.jpclett.9b00848.
Schürmann, R., Ebel, K., Nicolas, C., Milosavljević, A. R., & Bald, I. (2019). Role of Valence Band States and Plasmonic Enhancement in Electron-Transfer-Induced Transformation of Nitrothiophenol. The journal of physical chemistry letters, 10(11), 3153-3158. https://doi.org/10.1021/acs.jpclett.9b00848
Schürmann, Robin, et al. "Role of Valence Band States and Plasmonic Enhancement in Electron-Transfer-Induced Transformation of Nitrothiophenol." The journal of physical chemistry letters vol. 10,11 (2019): 3153-3158. doi: https://doi.org/10.1021/acs.jpclett.9b00848
Schürmann R, Ebel K, Nicolas C, Milosavljević AR, Bald I. Role of Valence Band States and Plasmonic Enhancement in Electron-Transfer-Induced Transformation of Nitrothiophenol. J Phys Chem Lett. 2019 Jun 06;10(11):3153-3158. doi: 10.1021/acs.jpclett.9b00848. Epub 2019 May 28. PMID: 31117676; PMCID: PMC6569622.
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J Phys Chem Lett. 2019 Jun 06;10(11):3153-3158. doi: 10.1021/acs.jpclett.9b00848. Epub 2019 May 28.

Role of Valence Band States and Plasmonic Enhancement in Electron-Transfer-Induced Transformation of Nitrothiophenol.

The journal of physical chemistry letters

Robin Schürmann, Kenny Ebel, Christophe Nicolas, Aleksandar R Milosavljević, Ilko Bald

Affiliations

  1. Physical Chemistry, Institute of Chemistry , University of Potsdam , Karl-Liebknecht-Str. 24-25 , 14476 Potsdam-Golm , Germany.
  2. Department of Analytical Chemistry BAM , Federal Institute of Material Research and Testing , Richard-Willstätter-Str. 11 , 12489 Berlin , Germany.
  3. Synchrotron SOLEIL , L'Orme des Merisiers, Saint Aubin, BP 48 , 91192 Gif-sur-Yvette , France.

PMID: 31117676 PMCID: PMC6569622 DOI: 10.1021/acs.jpclett.9b00848

Abstract

Hot-electron-induced reactions are more and more recognized as a critical and ubiquitous reaction in heterogeneous catalysis. However, the kinetics of these reactions is still poorly understood, which is also due to the complexity of plasmonic nanostructures. We determined the reaction rates of the hot-electron-mediated reaction of 4-nitrothiophenol (NTP) on gold nanoparticles (AuNPs) using fractal kinetics as a function of the laser wavelength and compared them with the plasmonic enhancement of the system. The reaction rates can be only partially explained by the plasmonic response of the NPs. Hence, synchrotron X-ray photoelectron spectroscopy (XPS) measurements of isolated NTP-capped AuNP clusters have been performed for the first time. In this way, it was possible to determine the work function and the accessible valence band states of the NP systems. The results show that besides the plasmonic enhancement, the reaction rates are strongly influenced by the local density of the available electronic states of the system.

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