| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.944 |
| 발표분야 |
촉매 및 반응공학(Catalysis and Reaction Engineering) |
| 제목 |
Comparative study of CO2 adsorption ability and catalytic performance in elctrochemical reaction of single La2O2CO3 phase |
| 초록 |
The different single crystal La2O2CO3 phases are one of key parameters influencing heterogeneous catalytic behavior of La2O3-containing catalysts. In this study, we prepared single crystal La2O2CO3 materials by two different methods – precipitation method (PL) and hydrothermal method (HL) and comparatively investigated the formation of La2O2CO3 phases in the prepared materials. The factors to different La2O2CO3 phase were investigated. The intermediate product before calcination process played an important role in the formation of La2O2CO3 phase. The La(OH)3 resulted in hexagonal phase while LaOHCO3 resulted in monoclinic phase. The CO2 was desorbed from the monoclinic La2O2CO3 phase at the higher temperatures than the hexagonal La2O2CO3 phase. Also, by quantity analysis of TPD, monoclinic La2O2CO3 phase has about three times amount of CO2 adsorption than the hexagonal La2O2CO3 phase which prove that the monoclinic La2O2CO3 phase has better CO2 adsorption ability. According to the CV result, the monoclinic La2O2CO3 phase has better catalytic performance in CO2 electrochemical reaction. |
| 저자 |
우홍안1, Nguyen Phu Huy1, 강성구1, Yong Men2, 신은우1
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| 소속 |
1울산대, 2Shanghai Univ. of Engineering Science |
| 키워드 |
촉매 |
| E-Mail |
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| 원문파일 |
초록 보기 |
