LaCu_(1-x)Mn_xO_3催化剂的制备及其催化甲烷燃烧研究

• 作 者: 郑建东 王保华 郎雄峰 曹家龙 谢从新
• 机 构: 滁州学院材料与化学工程学院,
• 出 处: 应用化工
• 发表日期: 2014年01期
• 关键词: 催化剂 LaCu x)Mn_xO_3 钙钛矿 甲烷催化燃烧 甲烷 掺杂 锰离子 催化剂结构 晶型

研究了甲烷在LaCu1-x Mn x O3钙钛矿催化剂上的低温催化反应,考察了不同量锰离子和铜离子进行复合掺杂对催化剂结构物理性质和催化性能的影响。结果表明,催化剂在600℃焙烧后,可以形成完整的钙钛矿晶型;锰离子的掺杂对于催化剂的结构有较大的影响,比表面积有所增大,LaCuO3催化剂的活性明显升高,其中LaMnO3催化甲烷燃烧的活性最好。

The low temperature catalytic reaction of methane on LaCu1-x Mn x O3 perovskite catalysts was investigated. The effects of different amounts of manganese ions and copper ions on the physical and catalytic properties of the catalysts were investigated. The results show that the catalyst can form a complete perovskite after calcination at 600 ℃. The doping of manganese ions has a great effect on the structure of the catalyst. The specific surface area increases and the activity of LaCuO3 catalyst increases obviously. Among them, LaMnO3 catalyzes the best activity of methane combustion.