| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션) |
| 권호 |
20권 1호 |
| 발표분야 |
에너지저장변환_포스터 |
| 제목 |
Electrochemical studies of sulfonated sillica supported Pt electrocatalyst for unitized regenerative fuel cells |
| 초록 |
The Platinum (Pt) nanoparticles were dispersed on the surface of sulfonated silica (SiO2-SO3H) and used as a bifunctional oxygen electrode for the unitized regenerative fuel cell (URFC) system. The electrochemical (ORR) performance of the Pt/SiO2-SO3H and Pt/SiO2 electrocatalysts are 800 mA cm-2 and 600 mA cm-2, respectively, at 0.70 V in the FC mode. The electrocatalytic performance of Pt/SiO2-SO3H is 30% higher than the Pt/SiO2 catalyst. In the WE mode, both the sulfonated and non-sulfonated SiO2/Pt electrocatalysts exhibited stable performance. The improved performance of the Pt/SiO2-SO3H catalyst is probably due to the sulfonic acid functional group in the silica support material. Therefore, this work confirms that the silica-supported sulfonation process used in this study is more effective for the improvement of the URFC performance. |
| 저자 |
SADHASIVAM THANGARASU, 임민화, 문건오, 박미정, 노현준, 이정명, 정호영
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| 소속 |
전남대 |
| 키워드 |
Platinum; Nanoparticle; Sulfonated silica; Cyclic voltammeter; Unitized regenerative fuel cell
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| E-Mail |
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