溶剂热还原法制备蛋壳状碳材料

Preparation of Eggshell-like Carbon Materials via a Thermal Reduction Process

自1985年Kroto等发现富勒烯、1991年Iiii—ma发现纳米碳管以来．碳材料的研究便引起了世界范围内的广泛关注。不同形貌碳材料在许多方面有着不同的潜在应用价值．因此具有独特结构的碳材料已经引起了广泛的研究热情。根据所使用的方法和使用的碳前驱体的不同．许多不同形貌的碳材料比如纳米碳管，洋葱型碳、锥形结构碳、碳微树、空心碳球、碳微卷等已经成功地被合成。

Eggshell-like carbon materials with high yields have been synthesized by a solvothermal route in a stainless steel autoclave using metallic zinc and absolute ethanol as starting materials. The products were characterized by X-ray powder diffractometry （XRD）, energy-dispersive X-ray spectroscopy （EDX）, Raman spectroscopy and scanning electron microscopy （SEM）. The eggshell-like carbon spheres had diameters ranging from 500 nm to 1 μm. The optimal reaction conditions to obtain eggshell-like carbon materials were 600 ℃ and 12 h.