Rapid Bulk Synthesis of Carbon Nanotubes and Graphite Encapsulated Metal Nanoparticles
The new University of California process is a true bulk method for synthesizing nanotubes and graphite encapsulated metal nanoparticles. It offers: A highly efficient, inexpensive, and readily scalable route to multi- and single-walled nanotubes and graphite encapsulated metal nanoparticles; Reactions that use cheap precursors, require less preparation, and less-expensive equipment than existing methods; Nanotube yields that can be optimized by adjusting reaction parameters.
Scientists at the University of California have developed a rapid method for the bulk synthesis of carbon nanotubes and graphite encapsulated metal nanoparticles.
Patent Number: US6479028B1
Application Number: US2000541814A
Inventor: Kaner, Richard B. | O'Loughlin, Jennifer L. | Kiang, Ching Hwa | Wallace, Charles H.
Priority Date: 3 Apr 2000
Priority Number: US6479028B1
Application Date: 3 Apr 2000
Publication Date: 12 Nov 2002
IPC Current: C01B003102
US Class: 423414 | 252502 | 252503 | 4234471 | 4234472 | 977773 | 977835 | 977842 | 977843 | 977896 | 977948
Assignee Applicant: The Regents of the University of California
Title: Rapid synthesis of carbon nanotubes and carbon encapsulated metal nanoparticles by a displacement reaction
Usefulness: Rapid synthesis of carbon nanotubes and carbon encapsulated metal nanoparticles by a displacement reaction
Summary: The process is used in preparing carbon material, e.g. single-walled or multi-walled carbon nanotube and/or encapsulated metal (claimed). Carbon nanotubes are useful in magnetic data storage media or as conductor or semiconductor.
Novelty: Preparation of carbon material, e.g. carbon nanotube, by displacement reaction using carbon compound, compound containing metal and carbon, and catalyst
化工/材料
化工/材料应用
6479028
Background Nanomaterials have a very diverse range of applications. Graphite encapsulated magnetic metal nanoparticles are of interest as magnetic data-storage media. Nanotubes have applications including: improved carbon-carbon composites for strong lightweight components (e.g. airplane skins and golf clubs), nanometer-scale electronic devices, electron guns for flat-screen televisions, and Scanning Tunneling Microscopy (STM) tips. Several synthesis methods are available for multi-walled nanotubes and they can be produced in bulk. However, there are no comparable methods for the bulk synthesis of single-walled nanotubes, which can therefore cost as much as $2000 per gram. Additional Technologies by these Inventors Tech ID/UC Case 10133/1999-245-0 Related Cases 1999-245-0
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