- 인공태양을 이용한 모노리스 적용 반응기에서 2단계 열화학적 물분해 연구
- ㆍ 저자명
- 강경수,김창희,박주식,Kang. Kyoung-Soo,Kim. Chang-Hee,Park. Chu-Sik
- ㆍ 간행물명
- 한국수소 및 신에너지학회 논문집
- ㆍ 권/호정보
- 2007년|18권 2호|pp.109-115 (7 pages)
- ㆍ 발행정보
- 한국수소및신에너지학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Solar energy conversion to hydrogen was carried out via a two-step thermochemical water splitting using metal oxide redox pair. To simulate the solar radiation, a 7 kW short arc Xe-lamp was used. Partially reduced iron oxide and cerium oxide have the water splitting ability, respectively. So, $Fe_3O_4$ supported on $CeO_2$ was selected as the active material. $Fe_3O_4/CeO_2$(20 wt/80 wt%) was prepared by impregnation method, then the active material was washcoated on the ceramic honeycomb monolith made of mullite and cordierite. Oxygen was released at the reduction step($1673{sim}1823;K$) and hydrogen was produced from water at lower temperature($873{sim}1273;K$). The result demonstrate the possibility of the 2-step thermochemical water splitting hydrogen production by the active material washcoated monolith. And hydrogen and oxygen was produced separately without any separation process in a monolith installed reactor. But the SEM and EDX analysis results revealed that the support used in this experiment is not suitable due to the thermal instability and coating material migration.