| 학회 |
한국화학공학회 |
| 학술대회 |
2011년 가을 (10/26 ~ 10/28, 송도컨벤시아) |
| 권호 |
17권 2호, p.1866 |
| 발표분야 |
재료 |
| 제목 |
Enhanced H2 evolution from water over visible-light-driven SrTiO3:Rh/Ta photocatalyst prepared by spray pyrolysis |
| 초록 |
SrTiO3:Rh/Ta powder was prepared by spray pyrolysis from polymeric precursor mixture of citric acid and ethylene glycol. The co-doping of Ta on SrTiO3:Rh was found to be effective to reduce the formation of Rh ions of higher oxidation states than Rh3+. The charge compensation due to the substitution of two Ti4+ in the host material by Rh3+ and Ta5+ appeared to be highly favorable for the enhancement of hydrogen evolution rate by 3.5 times and the reduction of induction period by 50 % compared with those of SrTiO3:Rh. Intimate mixing of precursor solution of multi-components in spray pyrolysis was responsible for this enhanced performance as photocatalyst for hydrogen generation. |
| 저자 |
강현우, 박승빈
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| 소속 |
한국과학기술원 |
| 키워드 |
photocatalysis; doped SrTiO3; hydrogen evolution; visible light; spray pyrolysis
|
| E-Mail |
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| 원문파일 |
초록 보기 |
