粉状纳米材料的表面研究进展与展望

Research on Surface of Powder Nanomaterials:Current Status and Future Prospect

粉状纳米材料表面是决定其性能的关键性因素之一。用热物理法,化学法和机械制造法都可制得纳米粉,但其表面却有所不同。热物理法能得到表面比较纯净的纳米粉。纳米粉表面与其成分、结构和形态有关,它对纳米粉的化学和物理性能有着决定性的影响。因此,粉状纳米材料应用前景也取决取于其表面研究的进展。

Usually nanomatenals include nanotubes , nanowhiskers and nanoparticles. They have various potential applications m industry. These materials can be produced by thermophysical .chemical and mechanic methods to which their surface states are related. Their surfaces play a key role in determining their performance. So far neither theoretical study nor experimental measurement on their surfaces have been carried out. Attention must be paid to the behaviors of chemical composition .structure and properties of the nanomatenals