uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Photoinduced hole transfer from tris(bipyridine)ruthenium dye to a high-valent iron-based water oxidation catalyst
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.ORCID iD: 0000-0003-2104-1912
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry. Uppsala Univ, Angstrom Lab, Dept Chem, POB 523, S-75120 Uppsala, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry. Free Univ Berlin, Phys Dept, Arnimallee 14, D-14195 Berlin, Germany.ORCID iD: 0000-0003-0510-5541
Taras Shevchenko Natl Univ Kyiv, Dept Chem, Volodymyrska 64, UA-01601 Kiev, Ukraine;PBMR Labs Ukraine, Murmanska 1, UA-02094 Kiev, Ukraine.
Show others and affiliations
2019 (English)In: Faraday discussions (Online), ISSN 1359-6640, E-ISSN 1364-5498, Vol. 215, p. 162-174Article in journal (Refereed) Published
Abstract [en]

An efficient water oxidation system is a prerequisite for developing solar energy conversion devices. Using advanced time-resolved spectroscopy, we study the initial catalytic relevant electron transfer events in the light-driven water oxidation system utilizing [Ru(bpy)(3)](2+) (bpy = 2,2 '-bipyridine) as a light harvester, persulfate as a sacrificial electron acceptor, and a high-valent iron clathrochelate complex as a catalyst. Upon irradiation by visible light, the excited state of the ruthenium dye is quenched by persulfate to afford a [Ru(bpy)(3)](3+)/SO4- pair, showing a cage escape yield up to 75%. This is followed by the subsequent fast hole transfer from [Ru(bpy)(3)](3+) to the Fe-IV catalyst to give the long-lived Fe-V intermediate in aqueous solution. In the presence of excess photosensitizer, this process exhibits pseudo-first order kinetics with respect to the catalyst with a rate constant of 3.2(1) x 10(10) s(-1). Consequently, efficient hole scavenging activity of the high-valent iron complex is proposed to explain its high catalytic performance for water oxidation.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2019. Vol. 215, p. 162-174
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-392589DOI: 10.1039/c8fd00167gISI: 000477683600011PubMedID: 30951052OAI: oai:DiVA.org:uu-392589DiVA, id: diva2:1349207
Funder
EU, Horizon 2020, 778245Swedish Institute, 23913/2017Available from: 2019-09-06 Created: 2019-09-06 Last updated: 2019-09-06Bibliographically approved

Open Access in DiVA

fulltext(1003 kB)75 downloads
File information
File name FULLTEXT01.pdfFile size 1003 kBChecksum SHA-512
15a88979ae091fe44448c2955c9871391328fdccdfed8524a4b1539c0b85707d1df1be1a3eb2c971ebda427b912501e924a2f05ceac0b95285e64183d764d136
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Authority records BETA

Shylin, Sergii I.Pavliuk, Mariia V.D'Amario, LucaBerggren, Gustav

Search in DiVA

By author/editor
Shylin, Sergii I.Pavliuk, Mariia V.D'Amario, LucaBerggren, Gustav
By organisation
Physical ChemistryMolecular Biomimetics
In the same journal
Faraday discussions (Online)
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 75 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 106 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf