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本文报道了Fe_3O_4胶体的制备工艺、结构及形成机理,讨论了Fe_2O_3型气敏元件的制备及敏感特性。研究表明,依此工艺制备的Fe_3O_4胶体可以作为敏感材料使用。
The preparation, structure and formation mechanism of Fe_3O_4 colloids were reported in this paper. The preparation and sensitive properties of Fe_2O_3 gas sensors were discussed. Studies have shown that the Fe_3O_4 colloids prepared by this process can be used as sensitive materials.