Boron mediated synthesis of multiwalled carbon nanotubes by chemical vapor deposition
Boron mediated synthesis of multiwalled carbon nanotubes by chemical vapor deposition
复制标题
DOI：
10.1016/j.cplett.2007.01.079
复制
发表时间：
2007-03-22
影响因子：
2.8
通讯作者：
Havel, Josef
中科院分区：
文献类型：
--
作者：
Mondal, Kartick C.;Coville, Neil J.;Havel, Josef
以BF-I/MeOH为硼源，Fe/Ca(BO3)(2)/CaCO3为催化剂，乙炔为碳源，采用气相沉积法制备了掺硼多壁碳纳米管。采用透射电子显微镜（TEM）、拉曼光谱（Raman spectroscopy）和激光烧蚀质谱（laser ablation mass spectrometry）对掺杂硼的多层碳纳米管进行了表征。通过用MeOH稀释硼源来改变硼的浓度，稀释导致：(i)碳材料的产率提高，（ii）材料的无序程度降低，（iii）掺杂硼的多壁碳纳米管的一阶和二阶拉曼光谱强度降低。(c) 2007 Elsevier B.V.版权所有
A CVD procedure has been used for the attempted synthesis of boron-doped multiwalled carbon nanotubes using BF-I/MeOH as the boron-source, Fe/Ca(BO3)(2)/CaCO3 as catalyst and acetylene as the carbon-source. The boron-doped multimalled carbon nanotubes were characterized by TEM, Raman spectroscopy and laser ablation mass spectrometry analysis. Variation of the boron concentration was achieved by diluting the boron-source with MeOH and dilution resulted in: (i) a higher yield of carbon material, (ii) a less disordered material and (iii) a decrease in intensity in the first- and second-order Raman spectra of boron-doped multi walled carbon nanotubes. (c) 2007 Elsevier B.V. All rights reserved.