Abstract
A protective conductive polymer electrolyte (PE) composed of poly(vinylidenefluoride-co-hexafluoropropylene), 49% poly(methylmethacrylate)-grafted natural rubber and lithium tetrafluoroborate (PVdF-HFP-MG49-LiBF4, also referred as PHMLi) was used as a strategic method to improve the photocatalyst stability of the dye sensitiser on a TiO2 photoanode. PHMLi was fabricated onto a ruthenium dye-sensitised TiO2 photoanode (FTO/TiO2/Ru/PHMLi) using a dip-coating technique. The COOH anchoring groups in the ruthenium dye are known to undergo hydrolysis in photoelectrochemical cell (PEC) in a direct water-splitting reaction causing the ruthenium dye to desorb from the TiO2 photoanode. Thus, PHMLi was applied to sustain the physical, chemical and photostability properties of the ruthenium dye. The PEC properties of FTO/TiO2/Ru/PHMLi were investigated using a 0.5 M KOH electrolyte. The result indicated that PHMLi protective layer exhibited the ability to retain the ruthenium dye sensitiser on the TiO2 surface and improved the overall photocatalyst stability of the PEC photoanode.
| Original language | English |
|---|---|
| Pages (from-to) | 1-6 |
| Number of pages | 6 |
| Journal | Ionics |
| DOIs | |
| Publication status | Accepted/In press - 25 Jan 2018 |
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Keywords
- MG49
- Photocatalyst stability
- Photoelectrochemical
- PVdF-HFP
- Ruthenium
- TiO
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Science(all)
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Passivated dye-sensitised TiO2 photoanode with conductive polymer with improved photocatalyst stability for photoelectrochemical application. / Mark-Lee, Wun Fui; Lee, Tian Khoon; Ng, Kim Hang; Effery Minggu, Lorna; Ahmad, Azizan; Kassim, Mohammad.
In: Ionics, 25.01.2018, p. 1-6.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Passivated dye-sensitised TiO2 photoanode with conductive polymer with improved photocatalyst stability for photoelectrochemical application
AU - Mark-Lee, Wun Fui
AU - Lee, Tian Khoon
AU - Ng, Kim Hang
AU - Effery Minggu, Lorna
AU - Ahmad, Azizan
AU - Kassim, Mohammad
PY - 2018/1/25
Y1 - 2018/1/25
N2 - A protective conductive polymer electrolyte (PE) composed of poly(vinylidenefluoride-co-hexafluoropropylene), 49% poly(methylmethacrylate)-grafted natural rubber and lithium tetrafluoroborate (PVdF-HFP-MG49-LiBF4, also referred as PHMLi) was used as a strategic method to improve the photocatalyst stability of the dye sensitiser on a TiO2 photoanode. PHMLi was fabricated onto a ruthenium dye-sensitised TiO2 photoanode (FTO/TiO2/Ru/PHMLi) using a dip-coating technique. The COOH anchoring groups in the ruthenium dye are known to undergo hydrolysis in photoelectrochemical cell (PEC) in a direct water-splitting reaction causing the ruthenium dye to desorb from the TiO2 photoanode. Thus, PHMLi was applied to sustain the physical, chemical and photostability properties of the ruthenium dye. The PEC properties of FTO/TiO2/Ru/PHMLi were investigated using a 0.5 M KOH electrolyte. The result indicated that PHMLi protective layer exhibited the ability to retain the ruthenium dye sensitiser on the TiO2 surface and improved the overall photocatalyst stability of the PEC photoanode.
AB - A protective conductive polymer electrolyte (PE) composed of poly(vinylidenefluoride-co-hexafluoropropylene), 49% poly(methylmethacrylate)-grafted natural rubber and lithium tetrafluoroborate (PVdF-HFP-MG49-LiBF4, also referred as PHMLi) was used as a strategic method to improve the photocatalyst stability of the dye sensitiser on a TiO2 photoanode. PHMLi was fabricated onto a ruthenium dye-sensitised TiO2 photoanode (FTO/TiO2/Ru/PHMLi) using a dip-coating technique. The COOH anchoring groups in the ruthenium dye are known to undergo hydrolysis in photoelectrochemical cell (PEC) in a direct water-splitting reaction causing the ruthenium dye to desorb from the TiO2 photoanode. Thus, PHMLi was applied to sustain the physical, chemical and photostability properties of the ruthenium dye. The PEC properties of FTO/TiO2/Ru/PHMLi were investigated using a 0.5 M KOH electrolyte. The result indicated that PHMLi protective layer exhibited the ability to retain the ruthenium dye sensitiser on the TiO2 surface and improved the overall photocatalyst stability of the PEC photoanode.
KW - MG49
KW - Photocatalyst stability
KW - Photoelectrochemical
KW - PVdF-HFP
KW - Ruthenium
KW - TiO
UR - http://www.scopus.com/inward/record.url?scp=85040920709&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85040920709&partnerID=8YFLogxK
U2 - 10.1007/s11581-018-2457-y
DO - 10.1007/s11581-018-2457-y
M3 - Article
AN - SCOPUS:85040920709
SP - 1
EP - 6
JO - Ionics
JF - Ionics
SN - 0947-7047
ER -