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| Au/Co3O4的制备、表征及加氢催化性能研究 |
| Preparation, Characterization and Catalytic Hydrogenation Performance of Au/Co3O4 |
| 投稿时间：2017-09-04 |
| DOI： |
| 中文关键词: 催化化学 金纳米粒子 四氧化三钴 对硝基苯酚 催化加氢 |
| 英文关键词: catalytic chemistry Au nanoparticles Co3O4 4-nitrophenol catalytic hydrogenation |
| 基金项目:国家自然科学基金项目(21363011)、云南省科技计划项目(2013FB094, 2016DC033)、云南省两类人才项目(2017HB060)。 |
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| 中文摘要: |
| 采用化学浸渍法制备出Au/Co3O4纳米复合材料，用透射电子显微镜(TEM)、X射线能谱(EDS)和X射线粉末衍射(XRD)等对其结构和组成进行了表征，并考察了其在对硝基苯酚加氢反应中的催化性能。表征结果表明，Au纳米粒子很好地分散在Co3O4载体上。催化性能测试表明，Au/Co3O4纳米复合材料对于对硝基苯酚加氢反应表现出优异的催化活性，TOF值为5.01 min-1；此外，催化剂经过5次循环仍然保持优异的催化性能。 |
| 英文摘要: |
| Au/Co3O4 nanocomposites were synthesized via the chemical impregnation method. The structure and composition of the product obtained were characterized by TEM, EDS and XRD, and the catalytic performance of Au/Co3O4 was evaluated in the hydrogenation reaction of 4-nitrophenol. The results showed that Au nanoparticles were well dispersed on the surface of Co3O4. Au/Co3O4 displayed superior catalytic activity with a turnover frequency (TOF) of 5.01 min-1for the hydrogenation of 4-NP. In addition, Au/Co3O4 remained active after recycling five times. |
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