期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 9, 页码 8036-8044出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b19203
关键词
water-splitting; photocatalysis; energy conversion; polyoxometalates; organic-inorganic hybrid composites
资金
- Basic Science Research Program through National Research Foundation of Korea (NRF) - Ministry of Science and ICT of Korea [NRF-2015R1C1A1A02037698]
- Nano-Material Technology Development Program through National Research Foundation of Korea (NRF) - Ministry of Science and ICT of Korea [NRF-2017M3A7B4052802]
- Research Fund of the Ulsan National Institute of Science and Technology (UNIST) [1.180014.01]
An efficient and stable heterojunction photo anode for solar water oxidation was fabricated by hybridization of WO3 and conducting polymers (CPs). Organic/inorganic hybrid photoanodes were readily prepared by the electro-polymerization 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 photo-electrochemical 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 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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