Reactor and method for production of nanostructures

Sunkara, Mahendra Kumar; Kim, Jeong H.; Kumar, Vivekanand

Title: Reactor and method for production of nanostructures

Abstract

A reactor and method for production of nanostructures, including metal oxide nanowires or nanoparticles, are provided. The reactor includes a regulated metal powder delivery system in communication with a dielectric tube; a plasma-forming gas inlet, whereby a plasma-forming gas is delivered substantially longitudinally into the dielectric tube; a sheath gas inlet, whereby a sheath gas is delivered into the dielectric tube; and a microwave energy generator coupled to the dielectric tube, whereby microwave energy is delivered into a plasma-forming gas. The method for producing nanostructures includes providing a reactor to form nanostructures and collecting the formed nanostructures, optionally from a filter located downstream of the dielectric tube.

Inventors:: Sunkara, Mahendra Kumar; Kim, Jeong H.; Kumar, Vivekanand

Issue Date:: 2017-04-25

Research Org.:: University of Louisville Research Foundation, Inc. Louisville, KY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1353086

Patent Number(s):: 9630162

Application Number:: 13/439,592

Assignee:: University of Louisville Research Foundation, Inc.

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J37/32834 - {Exhausting}
H01J37/32192 - {Microwave generated discharge

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G23/07 - Producing by vapour phase processes, e.g. halide oxidation

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
C01P2004/16 - Nanowires or nanorods, i.e. solid nanofibres with two nearly equal dimensions between 1-100 nanometer
C01P2004/17 - Nanostrips, nanoribbons or nanobelts, i.e. solid nanofibres with two significantly differing dimensions between 1-100 nanometer

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J37/32449 - {Gas control, e.g. control of the gas flow}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B13/14 - Methods for preparing oxides or hydroxides in general

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
H05H1/46 - using applied electromagnetic fields, e.g. high frequency or microwave energy

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G9/02 - Oxides

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
H05H2001/4622 - {Waveguides}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
C01P2004/03 - obtained by SEM

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J12/02 - for obtaining at least one reaction product which, at normal temperature, is in the solid state

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
C01P2002/82 - by IR- or Raman-data

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B13/32 - by oxidation or hydrolysis of elements or compounds in the liquid or solid state {or in non-aqueous solution, e.g. sol-gel process}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J37/3244 - {Gas supply means}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G19/02 - Oxides
C01G9/03 - Processes of production using dry methods, e.g. vapour phase processes
C01G25/02 - Oxides
C01G23/047 - Titanium dioxide
C01G9/00 - Compounds of zinc
C01G1/02 - Oxides

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
H05H2245/124 - production of nanostructures

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F7/424 - {using a plasma}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
C01P2004/64 - Nanometer sized, i.e. from 1-100 nanometer

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DOE Contract Number:: FG02-05ER64071; FG36-05G085013A

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Apr 04

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats


                    Sunkara, Mahendra Kumar, Kim, Jeong H., and Kumar, Vivekanand. Reactor and method for production of nanostructures.  United States: N. p., 2017. 
        Web.

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                    Sunkara, Mahendra Kumar, Kim, Jeong H., & Kumar, Vivekanand. Reactor and method for production of nanostructures.  United States.

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                    Sunkara, Mahendra Kumar, Kim, Jeong H., and Kumar, Vivekanand. Tue .  
        "Reactor and method for production of nanostructures".  United States.  https://www.osti.gov/servlets/purl/1353086.

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@article{osti_1353086,

  title        = {Reactor and method for production of nanostructures},

  author       = {Sunkara, Mahendra Kumar and Kim, Jeong H. and Kumar, Vivekanand},

  abstractNote = {A reactor and method for production of nanostructures, including metal oxide nanowires or nanoparticles, are provided. The reactor includes a regulated metal powder delivery system in communication with a dielectric tube; a plasma-forming gas inlet, whereby a plasma-forming gas is delivered substantially longitudinally into the dielectric tube; a sheath gas inlet, whereby a sheath gas is delivered into the dielectric tube; and a microwave energy generator coupled to the dielectric tube, whereby microwave energy is delivered into a plasma-forming gas. The method for producing nanostructures includes providing a reactor to form nanostructures and collecting the formed nanostructures, optionally from a filter located downstream of the dielectric tube.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2017},

  month        = {4}

}

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Works referenced in this record:

Synthesis of nanosized ceramic oxide powders by microwave plasma reactions
journal, September 1992

Vollath, Dieter; Sickafus, Kurt E.
Nanostructured Materials, Vol. 1, Issue 5, p. 427-437
https://doi.org/10.1016/0965-9773(92)90093-D

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Title: Reactor and method for production of nanostructures

Abstract

Citation Formats

Synthesis of nanosized ceramic oxide powders by microwave plasma reactions journal, September 1992

Synthesis of nanosized ceramic oxide powders by microwave plasma reactions
journal, September 1992