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US 2011/0212016 A1Published application
Supported Catalysts for Synthesizing Carbon Nanotubes, Method for Preparing the Same, and Carbon Nanotubes Made Using the Same
AssigneeCheil Industries Inc.
InventorsYun Tack LEE, Byeong Yeol KIM, Seung Yong BAE, Young Kyu CHANG, Young Sil LEE
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Abstract
The present invention provides a supported catalyst for synthesizing carbon nanotubes. The supported catalyst includes a metal catalyst supported on a supporting body and a water-soluble polymer, and has an average diameter of about 30 to about 100 μm.
Claims25
A supported catalyst for synthesizing carbon nanotubes, comprising:
- a metal catalyst comprising Co, Fe, Ni, an alloy thereof, or a combination thereof, supported on a supporting body comprising alumina, magnesium oxide, silica, or a combination thereof;
- and
- a water-soluble polymer,
- wherein the supported catalyst has an average diameter of about 30 to about 100 μm.
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A method of preparing a supported catalyst for synthesizing carbon nanotubes, comprising the steps of:
- mixing a water-soluble polymer and an aqueous catalytic solution comprising metal catalyst and a supporting body to prepare a mixed catalytic solution;
- spray-drying the mixed catalytic solution to prepare a catalyst powder;
- and
- firing the catalyst powder.
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Dependencies are inferred from the claim text.