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| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
MAT.P-438 |
| Subject |
Enhanced Water Oxidation Efficiency with Polarized Ba0.5Sr0.5Co0.8Fe0.2O3 Perovskite Electro-Catalysts
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| Authors |
Heewon You, Min Hyung Lee1,*
Applied Chemistry, Kyung Hee University, Korea
1Department of Applied Chemistry, Kyung Hee University, Korea
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| Abstract |
The water oxidation reaction, half reaction of water splitting, is considered as a major huddle for achieving spontaneous water splitting due to its sluggish kinetics and instability of catalysts in oxidation process. To overcome these problems, a lot of efforts are made on developing non-noble metal based water oxidation catalysts. Metal oxides with cation and oxygen vacancy have been considered as a strong candidate due to its abundancy and decent activity. Among the metal oxides, peroveskites (ABO3) have gotten great attention due to tunable catalytic activity by changing chemical compositions. In this study, we present synthesized cubic phase Ba0.5Sr0.5Co0.8Fe0.2O3. (denoted as BSCF) with polarization using external high voltage. The poled BSCF shows increased oxygen vacancy on surface of electrode caused by polarization. At electro chemical analysis the current density for OER could be enhanced by 33.7 mA/cm¬2 at 1.8 V vs. RHE. |
| E-mail |
db4550@naver.com |
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123rd General Meeting of the KCS