催化合成纳米镧系金属氢化物

Catalytic Synthesis of Lanthanide Hydrides of Nanometric Size

在无氧无水条件下,镧系金属粉末以THF作溶剂、以TiCl4作催化剂、在45℃常压下可以加氢。透射电镜测试结果表明,所得产物是纳米尺寸的镧系氢化物。加氢速率随稀土元素原子序数的增加而减小。同时对催化合成中反应参数的影响进行了考察。

Rare- earth metals were hydrogenated in the presence of TiCl4 as a catalyst in THF at 45 ℃under nomad pressure. Transmission electron micrographs showed that the resulted lanthanide hydrides were in the form of nanoparticles. The rate of hydrogenation decreased with increasing atomic number of the rare - earth elements. The effect of reaction conditions on the catalytic hydrogenation of lanthanide hydrides was discussed.