| 郑建东,侯豹,王保华,谢从新.化学通报,2015,78(7):663-666. |
| 焙烧温度对LaSrFeMo0.9Co0.1O6催化剂催化甲烷燃烧性能的影响 |
| Effect of calcination temperature on Catalytic Properties of LaSrFeMo0.9Co0.1O6for Methane Combustion |
| 投稿时间：2014-12-04 修订日期：2015-01-15 |
| DOI： |
| 中文关键词: 焙烧温度 LaSrFeMo0.9Co0.1O6 甲烷催化燃烧 |
| 英文关键词:calcination temperature LaSrFeMo0.9 Co0.1 O6 methane catalytic combustion |
| 基金项目:安徽省教育厅自然科学研究重点项目(KJ2012A213) |
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| 中文摘要: |
| 采用溶胶凝胶法制备LaSrFeMo0.9Co0.1O6催化剂，以催化甲烷燃烧为目标反应，研究不同焙烧温度（600、700、800、900℃）对催化剂LaSrFeMo0.9Co0.1O6催化甲烷燃烧性能的影响。通过XRD、BET、H2-TPR及SEM技术对催化剂的结构进行表征。实验结果表明：在不同的焙烧温度下均可形成完整的双钙钛矿晶型，
且焙烧温度不同其催化活性不同，随着焙烧温度的升高其催化活性出现先升高后逐渐降低。当焙烧温度为800℃，样品比表面积为14 m2? g-1，起燃温度Tl0%为428℃，T90%为640℃。 |
| 英文摘要: |
| Double perovskite catalyst LaSrFeMo0.9 Co0.1O6 catalysts were prepared by sol-gel method. Effect of calcination temperature on catalytic properties of LaSrFeMo0.9 Co0.1O6for methane combustion were studied. The title catalysts were characterized by XRD, BET, H2-TPR and SEM techniques. The catalytic activity was evaluated for methane combustion. The experimental results show that at different calcination temperature can form a complete double perovskite crystal type and their catalytic activities are different. With the increase of calcination temperature, their catalytic activities rise, then gradually reduce. When the calcination temperature is 800℃, the LaSrFeMo0.9 Co0.1O6 retains a specific surface area of 14 m2? g-1and shows an excellent activity for methane combustion (the conversion of 10% and 90% is obtained at 428℃ and 640℃, respectively). |
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