溶胶-自蔓延燃烧法制备纳米材料的研究进展

Research and Progress of Sol-gel Auto-Combustion Process in the Synthesis of Nanomaterials

溶胶-自蔓延法具有溶胶-凝胶法和自蔓延法制备纳米材料的操作简单易行、无需煅烧、所得产物粒径小、分布比较均匀等优点.以硝酸盐-柠檬酸体系为例,综述了溶胶-自蔓延燃烧法的产生和发展,以及在制备一些简单纳米氧化物、以及燃料电池材料、铁氧体材料、超导粉体材料、介电陶瓷粉体材料和热敏陶瓷材料等几个方面的实际应用.最后展望了这一领域的应用和发展前景.

The sol-gel auto-combustion process is suitable for preparation nano-materials, which possess both advantages of the sol-gel and auto-combustion process. This method is easy to operate and needn't calcining. The powders have small and homogeneously grain size. The systems of nitrate-fuel mixture and citrate are mainly discussed as one example. The origin and development of the sol-gel auto-combustion process are summarized. The nanocrystalline oxides, material of fuel battery, ferrite, and superconductors a...