Studies on magnetic properties of one-dimensional nanocarbonstructures grown via metal-free process

我们找到了用无金属电弧等离子体加热法制备纳米石墨片的有效条件，并测得其介电常数为0.1kOe。此外，我们还发现，在氢气或还原性气氛中热处理能够改善石墨结构。我们已经澄清了通过“无金属热化学气相沉积”生长的碳纳米纤维（CNF）具有非常少量的硫原子（约100%）。0.02%）的CNF的碳网络通过元素分析。我们已经意识到，通过改进工艺，在石英磨砂玻璃表面上形成的无金属CNF约为以前的30倍。

We have found effective formation conditions of graphite nanoplatelets (GNP) by “metal-free arc plasma heating”, and observed coercivity of 0.1kOe. Furthermore, we have found that heat treatment in hydrogen of reducing atmosphere enabled to improve graphitic structure. We have clarified that carbon naofibers (CNFs) grown by “metal-free thermal chemical vapor deposition” have a very small amount of sulfur atoms (ca. 0.02%) in the carbon network of the CNFs via elemental analyses. We have realized that the metal-free CNFs were formed on surfaces of a quartz frosted glass about 30 times as much as before via improvement of the process.