METHODS AND DEVICES FOR SYNTHESIS OF CARBON NANOTUBES
First Claim
1. A method for synthesizing multi-walled carbon nanotubes comprising:
- continuously depositing catalyst on a constantly moving substrate;
forming multi-walled carbon nanotubes on the substrate;
separating multi-walled carbon nanotubes from the substrate; and
collecting multi-walled carbon nanotubes;
wherein the substrate constantly moves sequentially through the depositing, forming, separating and collecting steps.
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Abstract
Provided herein are methods and devices for production of carbon nanotubes (CNTs) which have high structural uniformity and low levels of impurities. The device includes, for example, a module for depositing catalyst on a substrate, a module for forming CNTs, a module for separating CNTs from the substrate, a module for collecting the CNTs and a module for continuously and sequentially advancing the substrate through the above modules. The method includes, for example, the steps of depositing catalyst on a moving substrate, forming carbon nanotubes on the substrate, separating carbon nanotubes from the substrate and collecting the carbon nanotubes from the surface, where the substrate moves sequentially through the depositing, forming, separating and collecting steps.
2 Citations
19 Claims
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1. A method for synthesizing multi-walled carbon nanotubes comprising:
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continuously depositing catalyst on a constantly moving substrate; forming multi-walled carbon nanotubes on the substrate; separating multi-walled carbon nanotubes from the substrate; and collecting multi-walled carbon nanotubes; wherein the substrate constantly moves sequentially through the depositing, forming, separating and collecting steps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device for synthesizing multi-walled carbon nanotubes comprising:
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a catalyst module which continuously deposits catalyst on a constantly moving substrate; a nanotube synthesis module which forms multi-walled carbon nanotubes on the substrate; a separation module which removes multi-walled carbon nanotubes from the substrate; a collection module which collects the multi-walled carbon nanotubes; and a transport module for continuously advancing the substrate through the catalyst module, the nanotube module, the separation module and the collection module in sequential order. - View Dependent Claims (10)
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- 11. Multi-walled carbon nanotubes of uniform length and greater than 90% purity.
Specification