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Author

Ryu, Jungki
Bio-inspired Functional Materials Lab (BFML)
Research Interests
  • Biomimetics, artificial photosynthesis, biomimetic catalysis, CO2 utilization

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WO3/Conducting Polymer Heterojunction Photoanodes for Efficient and Stable Photoelectrochemical Water Splitting

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Title
WO3/Conducting Polymer Heterojunction Photoanodes for Efficient and Stable Photoelectrochemical Water Splitting
Author
Jeon, DasomKim, NayeongBae, SanghyunHan, YujinRyu, Jungki
Keywords
energy conversion; organic− inorganic hybrid composites; photocatalysis; polyoxometalates; water-splitting
Issue Date
201803
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.10, no.9, pp.8036 - 8044
Abstract
An efficient and stable heterojunction photoanode for solar water oxidation was fabricated by hybridization of WO3 and conducting polymers (CPs). Organic/inorganic hybrid photoanodes were readily prepared by the electropolymerization of various CPs and the codeposition of tetraruthenium polyoxometalate (Ru4POM) water-oxidation catalysts (WOCs) on the surface of WO3. The deposition of CPs, especially polypyrrole (PPy) doped with Ru4POM (PPy:Ru4POM), resulted in a remarkably improved photoelectrochemical performance by the formation of a WO3/PPy p–n heterojunction and the incorporation of efficient Ru4POM WOCs. In addition, there was also a significant improvement in the photostability of the WO3-based photoanode after the deposition of the PPy:Ru4POM layer due to the suppression of the formation of hydrogen peroxide, which was responsible for corrosion. This study provides insight into the design and fabrication of novel photosynthetic and photocatalytic systems with excellent performance and stability through the hybridization of organic and inorganic materials.
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DOI
http://dx.doi.org/10.1021/acsami.7b19203
ISSN
1944-8244
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