摘要
回顾了目前关于LiH水解产物及其动力学的研究进展。已有的研究表明,LiH水解产物组成包括Li_2O、LiOH和LiOH·H_2O,它们由外向里形成LiOH·H_2O/LiOH/Li_2O/LiH水解层结构。LiH的水解反应普遍存在一种"准线性"动力学行为,并且受到H_2O浓度、温度、压力等因素影响。"层扩散控制"模型很好地解释了这些现象,但仍然存在一些局限性。
A number of recent studies on hydrolysis products and kinetics of LiH are reviewed. Previous results have proved that LiH hydrolysis products, composed of Lie O, LiOH and LiOH · H2O, make up a layered structure of LiOH · H2O/LiOH/Li2O/LiH from the surface to the inside of the sample. Whereas, the hydrolysis kinetics of LiH generally show a ＂paralinear＂ behavior, affected by H2O concentration, temperature, pressure and etc. The proposed model of ＂layer diffusion control＂ effeetively explains the hydrolysis behavior of LiH, although with some limitations left behind.
关键词
LIH
水解产物
动力学
层扩散控制模型
LiH, hydrolysis products, kinetics, layer diffusion control model
