节点文献
稀土助催化剂对CO2重整CH4反应的作用
Effect of Rare Earth Promoters on Ni/BaTiO3 Catalyst in CO2 Reforming CH4
【Author】 Chen Juanrong, Li Xiancai, Lai Zhihua, Wei Yuanzhen, Qu Yuan ( Department of Chemistry, Nanchang University , Nanchang 330047, China )
【机构】 南昌大学理学院化学系；
【摘要】 采用浸渍法制备了含稀土助剂的Ni/BaTiO3催化剂,研究了不同含量的La对镍基催化剂催化活性的影响。结果显示,以La含量为 1．5％(质量分数)时最佳;同时考察了La,Pr,Ho 3种稀土元素及不同的浸渍顺序对Ni/BaTiO3催化活性的影响。结果表明,La和Ho有良好的助剂作用,且分浸法制备的Ni-RE/BaTiO3(RE=La,Pr,Ho)催化剂的活性和稳定性要优于分浸法制备的RE-Ni/BaTiO3催化剂和共浸法制备的(RE-Ni)/BaTiO3催化剂。
【Abstract】 Some Ni/BaTiO3 catalysts containing rare earth promoters were prepared by impregnation. The influence of adding different content La on catalytic activities was investigated. The results show that the catalyst constituted of 1.5%La-5 .0%Ni/BaTiO3 is optimum . Also the activity influences were studied with the addition of La, Pr or Ho and different impregnation order. The results show that La and Ho play important roles as promoters, and the Ni-RE/BaTiO3 ( RE = La, Pr, Ho ) catalysts exhibit higher catalytic activities and stabilities.
【Key words】 rare earth promoter； BaTiO3； reforming； catalyst； rare earths；
- 【会议录名称】 中国稀土学会第一届青年学术会议论文集
- 【会议名称】中国稀土学会第一届青年学术会议
- 【会议时间】2005-08
- 【会议地点】中国内蒙古包头
- 【分类号】O643.32
- 【主办单位】中国稀土学会