单质硅

单质硅水解与水玻璃滴加法制备硅溶胶的研究

Study on Preparation of Silica Sol by Silicon Dissolution & Dripping water glass Method

本文给出了一种具有一定生产应用价值和发展前途的硅溶胶制备新工艺。该工艺采用改良的单质硅水解法，以金属硅粉为原料，在催化剂作用下水解单质硅制备二氧化硅胶体。

A new preparation process of silica sol with good perspective and some value in production and application has been described , which adopted modified silicon dissolution method , prepared silica sol by hydrolyzing silicon powder with catalyst .

交流阻抗谱表明，SiO2电脱氧为单质硅的反应是两步反应，与循环伏安曲线上的两个还原电流峰相符合。

The AC impedance spectra showed that the electro-deoxidation reaction of silicon dioxide is a two-step reaction and corresponding to the two reduction current peaks in the cyclic voltammetry curve .

多晶硅是单质硅的一种形态。

Polycrystalline silicon is a kind of form of monatomic silicon .

本文主要研究了单质硅粉法制备硅溶胶的粒径控制技术，通过控制单质硅粉水解反应的条件促使种子生长并抑制次生粒子的形成，获得了可控粒径的硅溶胶产品。

The size control technology of silica sol prepared by silicon powder method was investigated in this paper ; size-controllable silica sol was obtained by controlling the hydrolysis reaction conditions to promote the growth of seeds and to suppress the formation of secondary particles .