| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-석유화학·재생연료 |
| 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 BaTiO3 perovskite and Mn-Na2WO4 exhibited high activity and high selectivity at low temperature: 66.5% C2+ selectivity and 26.0% C2+ yield at 700 °C which is 100 °C lower than used for Mn-Na2WO4 catalysts (800 °C). When the complex catalysts were prepare, the insertion of Mn into BaTiO3 (BaTi(Mn)O3) and the formation of NaxMn(Ti)O2 improved the oxygen-supplying ability of the catalysts. In addition, strong interactions between the WO42- anions and BaTi(Mn)O3 or NaxMn(Ti)O2 stabilized the WO42- anions on the surface improving the methane activation ability of the catalysts for the favorable production of hydrocarbons (not CO or CO2). The nanoscopic modification of catalysts was confirmed using H2-TPR, TEM, XRD, XPS, and Raman results. |
| 저자 |
DO THI LIEN, 최재욱, 서동진, 유천재, 하정명
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| 소속 |
한국과학기술(연) |
| 키워드 |
OCM; Perovskite; Mn-Na2WO4
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| E-Mail |
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