本文针对稀土氧化物超微粉末的研制，提出较好的制备方法：沉淀转化法和喷雾热解法。

Deposition inversion and pulverization pyrolysis are the better preparation methods on the study of rare earth oxide ultra micro powder.

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论文首先对沉淀转化法制备纳米氧化镁的工艺作了进一步研究，然后进行了纳米氧化镁表面改性技术的研究。

In this thesis, the technology of preparing nanometer magnesia in PTM was further studied, and then surface modification of nanometer magnesia particle was discussed.

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但是他希望，通过在纳米管的表面更平均地沉淀铜纳米颗粒，结合其他一些改进，他们能够提高转化速率上千倍。

But he hopes that depositing copper nanoparticles more evenly onto the surfaces of the nanotubes and making other improvements will help boost their conversion rates by a factor of several thousand.

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