溶剂化金属原子浸渍法制备高分散负载型催化剂(Ⅶ)——Ni-Cu/SiO_2双金属催化剂的结构与性能

• 作 者: 吴世华 黄唯平 王序昆 刘上垣
• 机 构: 南开大学化学系,南开大学化学系,南开大学化学系,南开大学化学系 天津 300071,天津 300071,天津 300071,天津 300071
• 出 处: 高等学校化学学报
• 发表日期: 1991年08期
• 关键词: 双金属催化剂 Ni-Cu/SiO_2 金属蒸气 磁性质 浸渍法 负载型催化剂 催化活性 光电子能谱 催化剂 金属催化剂

利用金属蒸气法制备了不同组成的Nj-CujSiO_2双金属催化剂,XRD、TEM和磁性测定表明有Ni-Cu合金形成,合金颗粒的组成不均匀,而且有部分自由的Ni和Cu存在;Ni/Cu摩尔比为1:1催化剂的催化活性大于2:1和3:1的双金属催化剂以及Ni和Cu的单金属催化剂。

Nj-CujSiO 2 bimetallic catalysts with different compositions were prepared by metal vapor method. The XRD, TEM and magnetic measurements showed that Ni-Cu alloy was formed, the composition of the alloy particles was not uniform, and some Ni and Cu were free. Ni / Cu Bimetallic catalysts with a molar ratio of 1: 1 catalyst greater than 2: 1 and 3: 1 and single metal catalysts of Ni and Cu.