Quinone mediated selective oxidation of methane over palladium
文献类型：会议论文
| 作者 | An ZJ(安增建) ; Pan XL(潘秀莲) ; Liu XM(刘秀梅) ; Han XW(韩秀文) ; Bao XH(包信和) |
| 出版日期 | 2008-07-13 |
| 会议名称 | the 14th international congress on catalysis |
| 会议日期 | 2008-7-13 |
| 会议地点 | 韩国 |
| 页码 | 273/1 |
| 通讯作者 | 包信和 |
| 中文摘要 | selectice oxidation of methane to methanol is industrial significance. despite extensive efforts in the past decades, it is still a challenge in chemistry. compared to high-temperature conversion, metal-catallyzed oxidation in liquid phase at low temperatures (<250)seems to be a more promising route, because it usually gives a higher selectivity(>85%). we found that quinines (q) can be employed as efficient co-catalysts in the palladium catalyzed selective oxidation of methane to cf3cooch3 by o2in cf3cooh. in a homogeneously catalyzed reaction an electron-transfer chain was built based on three redox couples, i.e. pd2+/pd0, q/h2q, and no2/no. pd2+ was the catalyticallyactive center, oxidizing methane to cf3cooch3 forming pd0. the reduced pd0 was regenerated to pd2+ by q giving h2q. then no2 reacted with h2q to form q and no, which was reoxidized to no2 by o2. the turen over number (ton) based on pd2+ was 0.7h-1. in a heterogeneously catalyzed reaction over carbon supported pd(pd/c) an even higher ton of 86h-1 was obtained in the presence of tetrachloroquinone for the conversion of methane to cf3cooh3. |
| 会议主办者 | 国际催化协会 |
| 学科主题 | 物理化学 |
| 语种 | 中文 |
| 源URL | [http://159.226.238.44/handle/321008/112942]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 推荐引用方式 GB/T 7714 | An ZJ,Pan XL,Liu XM,et al. Quinone mediated selective oxidation of methane over palladium[C]. 见:the 14th international congress on catalysis. 韩国. 2008-7-13. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。