溶胶-凝胶低温自蔓延工艺合成Co0.5Ni0.5Mn2O4纳米粉体的过程稳定性研究

1.西北工业大学材料学院,西安,710072

2.西北工业大学材料学院,西安,710072

3.西北工业大学材料学院,西安,710072

4.西北工业大学材料学院,西安,710072

5.西北工业大学材料学院,西安,710072

基金项目: 航空基金(02G53044)

Study on Stability in the Preparation of Co0.5Ni0.5Mn2O4 by Sol-gel Auto-combustion Process

本文研究了溶胶-凝胶低温自蔓延工艺合成Co0.5Ni0.5Mn2O4纳米粉体过程中柠檬酸-硝酸盐体系的稳定性.研究结果表明:柠檬酸盐的析出是造成溶胶-凝胶体系不稳定主要因素;加入乙二醇与柠檬酸形成网络结构、以及金属离子与柠檬酸羧基之间形成的配位键是保证溶胶-凝胶体系稳定的两个必不可少的条件.

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