Synthesis of Carbon Nanochaplets by Catalytic Thermal Chemical Vapor Deposition
Synthesis of Carbon Nanochaplets by Catalytic Thermal Chemical Vapor Deposition
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催化热化学气相沉积法合成碳纳米小片
DOI：
10.1143/jjap.40.l492
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发表时间：
2001
影响因子：
1.5
通讯作者：
Mei Zhang
中科院分区：
文献类型：
--
作者：
Y. Nakayama;Mei Zhang
我们用催化热化学气相沉积法合成了纳米尺度的碳链，它由纳米管和珠子组成。该催化剂是一种图案化、层状的铁铟(Fe/In)薄膜，表面覆盖着铟锡氧化物。在680~725℃温度范围内，加入乙炔，在Fe/In包覆区和Fe/In非包覆区生长出丛状簇状结构。结果表明，Fe/In薄膜转变为复合粒子，成为簇状结构的种子。一些颗粒迁移到Fe/In-Uncoating区域，以生长带有珠子的链条，根据种子的不同形状不同。
We have synthesized carbon chaplets in nanometer-scale size consisting of a nanotube bearing beads by catalytic thermal chemical vapor deposition. The catalyst is a patterned, layered thin film of iron and indium (Fe/In) that is coated indium tin oxide. The bushlike chaplets grow on both Fe/In-coated and Fe/In-uncoated regions by feeding acetylene at temperatures from 680 to 725°C. It is found that the Fe/In film changes to compound particles to be seeds of the chaplets. Some particles migrate into the Fe/In-uncoated region to grow the chaplets bearing the beads with a variety of shapes depending on the seed.