| 张春.甲醇室温催化燃烧负载型铂催化剂的制备及性能研究[J].分子催化,2011,(3):220-225 |
| 甲醇室温催化燃烧负载型铂催化剂的制备及性能研究 |
| Preparation and Properties of Carrier Platinum Catalyst for Methanol Catalytic Combustion at Room Temperature |
| 投稿时间：2011-03-22 修订日期：2011-04-22 |
| DOI： |
| 中文关键词: 室温 催化燃烧 薄膜 载体 |
| 英文关键词:room temperature catalytic combustion film support |
| 基金项目:科技部国际合作项 （2009DFB60160）、上海市科委资助项目 （10520710400、10PJ1403800、0852NM01700、08160706000）、上海博士后资助项目（10R21412800）、上海大学研究生创新基金资助项目（SHUCX102015） |
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| 中文摘要: |
| 以铂为活性组分，氧化铝颗粒、单晶硅片及单晶硅片支撑的氧化铝薄膜为载体，制备了甲醇室温催化燃烧催化剂，研究了载体种类、载体性质、制备方法及铂负载量对催化剂活性的影响。结果表明，所制备的催化剂均可使甲醇在室温下燃烧；作为甲醇燃烧催化剂的载体，氧化铝优于单晶硅，薄膜状氧化铝优于颗粒状氧化铝。当载体种类和性质均相同时，化学分散法制备的催化剂活性高于磁控溅射法。就活性组分而言，增大其负载量并不一定能提高催化活性，本实验中，当铂的负载量下降两个数量级后，单位质量铂上甲醇的转化量提高了26倍。 |
| 英文摘要: |
| Different kinds of Pt catalysts were prepared to study their room-temperature combustion of methanol. The effect of support species, support properties and platinum loading on the performance of the catalysts were studied. The results showed that all these catalysts can catalyze the methanol combusting at room temperature. As the catalyst support, alumina is superior to silicon and alumina film is better than alumina paritcle. When the species and properties of the support are all same, the catalysts prepared by chemical dispersion method is better than that prepared by magnetron sputtering method. Besides, increasing the platinum loading may not reasonably increase the catalytic activity. In our experiments, the methanol conversion of unit mass of platinum increased by 26 times when platinum loading decreased two orders of magnitude. |
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