primary particle size meaning in English
一次粒径
Examples
- Transmission electron micrographs showed that the resulted lanthanide were in the form of nanoparticles with an average primary particle size around 20 - 40 nm
Tem测试结果表明真空条件下（ 13 - 40pa ） ，热分解制得的活性金属粉末的颗粒大小为20 - 40nm ，分散度好且纯度高。 - 1 lanthanide hydrides ( m = la , nd , sm , dy and yb ) can be prepared easily by the direct hydrogenation of lanthanide metals catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure . the rate of hydrogenation decreased with increasing atomic number of lanthanides . transmission electron micrographs showed that the resulted lanthanide hydrides were in the form of nanoparticles with an average primary particle size around 20 - 40 nm
本论文首次提出一种在温和条件下催化合成纳米尺寸的镧系金属氢化物的方法，介绍在常温常压下，镧、钕、钐、镝、镱五种镧系金属在四氢呋喃( thf )溶剂中，催化剂作用下与氢气直接化合形成相应的纳米尺寸的镧系金属氢化物。