| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.277 |
| 발표분야 |
[주제 6] 석유화학 |
| 제목 |
Mn-Na2WO4 /BaTi(Mn)O3 perovskite catalysts for the low-temperature oxidative coupling of methane |
| 초록 |
The oxidative coupling of methane (OCM) using hybrid catalysts containing BaTiO 3 perovskite and Mn-Na 2 WO 4 exhibited high activity and high selectivity at low temperature: 66.5% C 2+ selectivity and 26.0% C 2+ yield at 700 °C which is 100 °C lower than used for Mn-Na 2 WO 4 catalysts (800 °C). When the complex catalysts were prepared, the insertion of Mn into BaTiO 3 (BaTi(Mn)O 3 ) and the formation of Na x Mn(Ti)O 2 improved the oxygen-supplying ability of the catalysts. In addition, strong interactions between the WO 4 2-anions and BaTi(Mn)O 3 or Na x Mn(Ti)O 2 stabilized the WO 4 2- anions on the surface improving the methane activation ability of the catalysts for the favorable production of hydrocarbons (not CO or CO 2 ). The nanoscopic modification of catalysts was confirmed using H 2 -TPR, TEM, XRD, XPS, and Raman results. |
| 저자 |
Lien Do-Thi1, 최재욱2, 서동진2, 유천재2, 하정명2
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| 소속 |
1Korea Institute of Science and Technology, 2한국과학기술(연) |
| 키워드 |
촉매(Catalyst) |
| E-Mail |
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| 원문파일 |
초록 보기 |
