催化化学气相沉积过程中硫元素引发的炭形貌衍变

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

Structural changes in carbon produced by a sulfur-aided catalytic chemical vapor deposition catalytic chemical vapor deposition

Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China|

摘要: 以甲苯为碳源，二茂铁为催化剂，噻吩为生长促进剂，通过化学气相沉积方法得到了多分叉结构的炭。借助SEM、XRD和EDX考察了硫元素对产物的形貌和微观结构的影响。结果表明，当甲苯中的噻吩体积分数在0.01%～1%变化时，产物形貌由树状逐渐衍变为分支状。树状炭由较长而笔直的多分叉炭纤维构成，而分支状炭则由较短且弯曲的炭纤维构成。XRD结果表明硫元素对产物的微观结构没有明显的影响。
- 形貌衍变 /
- 分支状炭 /
- 硫 /
- 化学气相沉积
Abstract: Branched carbon structures were formed by a chemical vapor deposition of toluene using ferrocene as a catalyst precursor and thiophene as a promoter. The effects of sulfur on the carbon products were investigated by SEM, XRD, and EDX. Results show that the product microstructure changes from tree-like to worm-like when the thiophene volume fraction in the toluene increases from 0.01 to 1%. The carbon trees consist of long, straight, and well-developed branches, while the worm carbons are composed of short and curled fibers. There is no obvious difference in d₀₀₂, La and Lc for the two products.
- Morphology transformation /
- Branched carbon /
- Sulfur /
- Chemical vapor deposition