| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.2430 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Reduction potential and oxidation catalysis of vanadium-containing heteropolyacid (HPA) catalysts |
| 초록 |
Heteropolyacids (HPAs) have attracted much attention as homogeneous and heterogeneous catalysts for oxidation reactions. In general, it is known that the vanadium-containing HPAs have a strong oxidizing power (high reduction potential). The reduction potential of vanadium-containing H6+xP2Mo18-xVxO62 (x=0, 1, 2, and 3) Wells-Dawson HPA and H3+xPMo12-xVxO40 (x=0, 1, 2, and 3) Keggin HPA catalysts was measured by TPR experiments. The dehydrogenation of cyclohexanol was carried out to investigate the catalytic performance of the vanadium-containing HPA catalysts. Both reduction potential and catalytic activity showed a volcano-shaped curve with respect to vanadium substitution, across both families of HPA catalysts. The Wells-Dawson HPA showed a better catalytic performance than the Keggin HPA at the same level of vanadium substitution. A correlation between catalytic activity and reduction potential of the HPA catalysts was well established (KOSEF R01-2004-000-10502-0). |
| 저자 |
박동률, 김희수, 정지철, 이주형, 라경원, 이상희, 송인규
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| 소속 |
서울대 |
| 키워드 |
heteropolyacid; reduction potential; dehydrogenation; cyclohexanol
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| E-Mail |
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| 원문파일 |
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