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A platform for research: civil engineering, architecture and urbanism
Method for catalytically synthesizing carbon nanowires on surface of carbon fiber cloth
The invention relates to a method for catalytically synthesizing carbon nanowires on the surface of carbon fiber cloth, which comprises the following steps of: growing a metal organic framework material ZIF-67 on the surface of the carbon fiber cloth, performing decomposition reduction reaction on the ZIF-67 through a chemical vapor deposition process to generate Co nanoparticles, and finally successfully catalytically synthesizing the Co nanoparticles in the atmosphere of taking absolute ethyl alcohol as a carbon source to obtain a carbon nanowire material. The obtained carbon cloth with the carbon nanowires growing on the surface is laminated to prepare the carbon/carbon composite material, and the interlayer shear strength of the carbon/carbon composite material can be improved by about 90% compared with that of a pure carbon cloth laminated carbon/carbon composite material. According to the method, absolute ethyl alcohol is used as a carbon source, and a growth atmosphere more suitable for catalytic synthesis of the carbon nanowires can be created for Co catalyst particles; and the synthesized symbiotic winding-shaped carbon nanowires are uniform in size, relatively high in purity, uniformly dispersed on the surfaces of the carbon fibers, simple, controllable, environment-friendly, pollution-free, low in cost and suitable for industrial production.
在碳纤维布表面催化合成碳纳米线的方法，在碳纤维布表面生长金属有机框架材料ZIF‑67，再通过化学气相沉积工艺使ZIF‑67发生分解还原反应，产生Co纳米颗粒，最后Co纳米颗粒在无水乙醇作为碳源的气氛下，成功催化合成得到碳纳米线材料。本发明得到的表面长有碳纳米线的碳布进行叠层，制备成碳/碳复合材料，其层间剪切强度较纯碳布叠层的碳/碳复合材料可提高约90％。本发明使用无水乙醇作为碳源，能够为Co催化剂颗粒营造出更适合于催化合成碳纳米线的生长氛围；合成的共生缠绕状碳纳米线尺寸均一、纯度较高，且在碳纤维表面均匀分散，具有简单可控、环保无污染、成本低、适宜工业化生产。
Method for catalytically synthesizing carbon nanowires on surface of carbon fiber cloth
The invention relates to a method for catalytically synthesizing carbon nanowires on the surface of carbon fiber cloth, which comprises the following steps of: growing a metal organic framework material ZIF-67 on the surface of the carbon fiber cloth, performing decomposition reduction reaction on the ZIF-67 through a chemical vapor deposition process to generate Co nanoparticles, and finally successfully catalytically synthesizing the Co nanoparticles in the atmosphere of taking absolute ethyl alcohol as a carbon source to obtain a carbon nanowire material. The obtained carbon cloth with the carbon nanowires growing on the surface is laminated to prepare the carbon/carbon composite material, and the interlayer shear strength of the carbon/carbon composite material can be improved by about 90% compared with that of a pure carbon cloth laminated carbon/carbon composite material. According to the method, absolute ethyl alcohol is used as a carbon source, and a growth atmosphere more suitable for catalytic synthesis of the carbon nanowires can be created for Co catalyst particles; and the synthesized symbiotic winding-shaped carbon nanowires are uniform in size, relatively high in purity, uniformly dispersed on the surfaces of the carbon fibers, simple, controllable, environment-friendly, pollution-free, low in cost and suitable for industrial production.
在碳纤维布表面催化合成碳纳米线的方法，在碳纤维布表面生长金属有机框架材料ZIF‑67，再通过化学气相沉积工艺使ZIF‑67发生分解还原反应，产生Co纳米颗粒，最后Co纳米颗粒在无水乙醇作为碳源的气氛下，成功催化合成得到碳纳米线材料。本发明得到的表面长有碳纳米线的碳布进行叠层，制备成碳/碳复合材料，其层间剪切强度较纯碳布叠层的碳/碳复合材料可提高约90％。本发明使用无水乙醇作为碳源，能够为Co催化剂颗粒营造出更适合于催化合成碳纳米线的生长氛围；合成的共生缠绕状碳纳米线尺寸均一、纯度较高，且在碳纤维表面均匀分散，具有简单可控、环保无污染、成本低、适宜工业化生产。
Method for catalytically synthesizing carbon nanowires on surface of carbon fiber cloth
在碳纤维布表面催化合成碳纳米线的方法
LU JINHUA (author) / ZHOU ZHAOFAN (author) / CAO YI (author) / ZHANG RUOQIAN (author) / LI HEJUN (author)
2023-10-24
Patent
Electronic Resource
Chinese
| European Patent Office | 2023