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Type |
Poster Presentation |
Area |
Electrochemistry |
Room No. |
Event Hall |
Time |
4월 20일 (금요일) 11:00~12:30 |
Code |
ELEC.P-585 |
Subject |
Photocatalytic Multilayers Anode of Graphene Oxide and Terpyridine Ruthenium Complex for Efficient Water Splitting |
Authors |
Dongseok Kim, Minsu Gu1, Byeong-Su Kim* Department of Chemistry, Ulsan National Institute of Science and Technology, Korea 1Department of Energy Engineering, Ulsan National Institute of Science and Technology, Korea |
Abstract |
Increasing demands of sustainable energy have prompted the search for the resources that are clean and renewable. Solar energy is particularly attractive due to its abundance and clean nature; thus, photoelectrochemical system is drawing considerable attention in solar energy conversion, photocatalysis, and water splitting. In the photoelectrochemical system, metal-ligand complexes play an important role. In particular, Ru-based complex has received a considerable attention as a next-generation photosensitizer and photocatalyst with its outstanding optical property and photocatalytic activity. However, its limited photocurrent density due to the limited photo-induced electrons within a photoelectrode has been posed a significant challenge in the field.
In this study, we fabricated a multilayered thin film photoanode composed of Ru complex and nanosized graphene oxide (nGO) using layer-by-layer (LbL) assembly. The terpyridine complexed Ru (TPY2Ru) was incorporated for high density of photo-induced electron, while nGO could provide an efficient electron transfer pathway. We found that the multilayered TPY2Ru and nGO resulted in synergistic effect for efficient water splitting with a high photocurrent density (~1.41 μA/cm2) under ambient condition. We anticipate that this novel strategy for designing and assembling efficient photoanode can offer new insights for photocatalytic devices for clean energy sources.
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E-mail |
rlaehdtjr38@gmail.com |
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