Method and device to synthesize boron nitride nanotubes and related nanoparticles

Title: Method and device to synthesize boron nitride nanotubes and related nanoparticles

Methods and apparatus for producing chemical nanostructures having multiple elements, such as boron and nitride, e.g. boron nitride nanotubes, are disclosed. The method comprises creating a plasma jet, or plume, such as by an arc discharge. The plasma plume is elongated and has a temperature gradient along its length. It extends along its length into a port connector area having ports for introduction of feed materials. The feed materials include the multiple elements, which are introduced separately as fluids or powders at multiple ports along the length of the plasma plume, said ports entering the plasma plume at different temperatures. The method further comprises modifying a temperature at a distal portion of or immediately downstream of said plasma plume; and collecting said chemical nanostructures after said modifying.

Inventors:: Zettl, Alexander K.

Issue Date:: 2016-07-19

OSTI Identifier:: 1264425

Assignee:: The Regents of the University of California (Oakland, CA) LBNL

Patent Number(s):: 9,394,632

Application Number:: 13/635,897

Contract Number:: AC02-05CH11231

Resource Relation:: Patent File Date: 2011 Mar 21

Research Org:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

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Other works cited in this record:

Mass-production of boron nitride double-wall nanotubes and nanococoons
journal, January 2000

Cumings, John; Zettl, A.
Chemical Physics Letters, Vol. 316, Issue 3-4, p. 211-216
DOI: 10.1016/S0009-2614(99)01277-4

Synthesis of boron nitride nanotubes from carbon nanotubes by a substitution reaction
journal, November 1998

Han, Weiqiang; Bando, Yoshio; Kurashima, Keiji
Applied Physics Letters, Vol. 73, Issue 21, p. 3085-3087
DOI: 10.1063/1.122680

Effective precursor for high yield synthesis of pure BN nanotubes
journal, July 2005

Zhi, Chunyi; Bando, Yoshio; Tan, Chengchun
Solid State Communications, Vol. 135, Issue 1-2, p. 67-70
DOI: 10.1016/j.ssc.2005.03.062

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