| 학회 |
한국재료학회 |
| 학술대회 |
2015년 가을 (11/25 ~ 11/27, 부산 해운대그랜드호텔) |
| 권호 |
21권 2호 |
| 발표분야 |
C. 에너지 재료 |
| 제목 |
Photo-electrochemical Activation of water: TiO2 nanorods/Reduced graphene oxide/FTO as Photo-anode |
| 초록 |
Utilizing solar energy as driving force its long term goal for scientists and engineers to produce Hydrogen from water as it is the ultimate solution for global energy and environmental issues. Splitting of water into the hydrogen and oxygen has many bottlenecks to overcome. One of the key point is charge transfer stage which lead the redox reaction of water. Reduced graphene oxide has been considered a new approach to improve the charge transfer rate without direct or indirect recombination. Titanium dioxide significantly considered to be a promising photo-catalyst for hydrogen production system because of its remarkable properties such as a high chemical stability in severe environments, a relatively low toxicity and a cost. Incorporating titanium dioxide with the graphene oxide not only have unique advantages in suppressing the charge recombination but also unpaired π electrons on graphene oxide that can bond with surface Ti atoms of the titanium dioxide to form Ti-O-C bonding and extend the light absorption range of the titanium dioxide. In this work, reduced graphene oxides were chemically synthesized and drop-casted on the FTO glass. The TiO2 nanorods were prepared by hydrothermal method. The morphology of TiO2 nanorods/reduced graphene oxide/FTO photo-anode were investigated by FE-SEM, TEM. Furthermore solar hydrogen evolution was performed in the PEC cells. |
| 저자 |
Beelyong Yang, Kim Hyun
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| 소속 |
Kumoh National Institute of Technology |
| 키워드 |
<P>Photocatalysts; water splitting; semiconductor; energy harvesting; sunlight</P>
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| E-Mail |
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