Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • 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
A photoelectrochemical device for visible light driven water splitting by a molecular ruthenium catalyst assembled on dye-sensitized nanostructured TiO2
KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD. KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD. KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.ORCID iD: 0000-0003-1662-5817
KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD. KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD. KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
Show others and affiliations
2010 (English)In: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 46, no 39, 7307-7309 p.Article in journal (Refereed) Published
Abstract [en]

A photoelectrochemical device with a molecular Ru catalyst assembled via pH-modified Nafion on a dye-sensitized nanostructured TiO2 film as anode and a Pt foil as cathode has been successfully demonstrated to split water into O-2 and H-2 driven by visible light.

Place, publisher, year, edition, pages
2010. Vol. 46, no 39, 7307-7309 p.
Keyword [en]
OXIDATION CATALYST, ARTIFICIAL PHOTOSYNTHESIS, POLYMER MEMBRANE, COMPLEX
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-26665DOI: 10.1039/c0cc01828gISI: 000282218200003Scopus ID: 2-s2.0-77957673474OAI: oai:DiVA.org:kth-26665DiVA: diva2:373592
Note
QC 20101201Available from: 2010-12-01 Created: 2010-11-26 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Functional Photo-electrochemical Devices for Solar Cellsand Solar Fuels Based on Molecular Components
Open this publication in new window or tab >>Functional Photo-electrochemical Devices for Solar Cellsand Solar Fuels Based on Molecular Components
2012 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis concerns the development and the study of molecular functional photo-electrochemical cells (PEC) for solar cells and solar fuels.

The first chapter gives a general introduction about photosynthesis, dye-sensitized solar cell and photo-electrochemical device for water splitting.

The second chapter describes a TiO2-Co-catalyst electrode manufactured by a direct photo-deposition method. The electrode showed activity for electrochemical water oxidation in an electrochemical device.

In the third chapter, a photo-electrochemical cell (PEC) with two-electrodes for visible light driven water splitting has been successfully demonstrated. One electrode was a photo-anode, which assembled a ruthenium water oxidation catalyst (complex 1) into a dye-sensitized porous nanostructured TiO2 electrode by employing a cation-exchange membrane (Nafion). The other electrode was platinum which was used as a passive cathode for proton reduction.

In the fourth chapter, an earth abundant metal complex with an anchoring group (cobalt complex 2) was synthesized and investigated as water oxidation catalyst. This complex was further applied into a photo-anode in a PEC. The photo-anode was assembled by co-sensitization of complex 2 to a dye-sensitized porous nanostructured TiO2 electrode. The PEC device gave ca. 250 υA/cm2 photo-current and 7.2 % IPCE without applying any bias voltage, which is much higher than the reported results in the sample type of PEC. Meanwhile, we have shown that the catalytic effect is not from free cobalt ions, CoOx film or nanoparticles formed in situ by using complex 2 in the device.

The last two chapters describe an optimization of the NiO films prepared in two steps rather than one step film and applied in p-type DSSCs. This optimized film could adsorb more dye (P1), leading to a significant light harvesting efficiency (LHE) and IPCE in DSSCs. We further combined this P1 sensitized photo-cathode with a hydrogen evolution catalyst (complex 3) and applied this photo-cathode into a PEC for visible light hydrogen evolution.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2012. 71 p.
Series
Trita-CHE-Report, ISSN 1654-1081 ; 2012:51
Keyword
artificial photosynthesis, dye sensitized solar cell, hydrogen generation catalyst, nickel oxide (NiO), titanium dioxide (TiO2), water oxidation catalyst, water splitting
National Category
Other Chemical Engineering
Identifiers
urn:nbn:se:kth:diva-103623 (URN)
Public defence
2012-11-09, F3, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20121017

Available from: 2012-10-17 Created: 2012-10-16 Last updated: 2012-10-17Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Authority records BETA

Duan, LeleSun, Licheng

Search in DiVA

By author/editor
Li, LinDuan, LeleXu, YunhuaGorlov, MikhailHagfeldt, AndersSun, Licheng
By organisation
Centre of Molecular Devices, CMDOrganic ChemistryPhysical Chemistry
In the same journal
Chemical Communications
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 113 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • 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