Carbon nanostructure and method for preparing the same

Patent metadata

Field	Value
Publication number	US-9944850-B2
Application number	US-201615165115-A
Country	US
Kind code	B2
Filing date	May 26, 2016
Priority date	Sep 2, 2015
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

Provided is a carbon nanostructure including a plurality of organic molecules that are decomposition products of an organic solvent. The carbon nanostructure includes a carbon nanostructure core and a plurality of organic molecules bound to and grown on the carbon nanostructure core, wherein the carbon nanostructure core is a combination of the organic molecules.

First claim

What is claimed is:

1. A carbon nanostructure comprising:
a carbon nanostructure core; and,
a plurality of organic molecules bound to and grown on the carbon nanostructure core,
wherein the carbon nanostructure core is a combination of the organic molecules,
wherein the organic molecules are decomposition products of an organic solvent selected from the group consisting of acetone, benzene, N-methyl-2-pyrrolidone (NMP), dimethyl formamide (DMF), dimethyl sulfoxide (DMSO), n-hexane, benzene, carbon tetrachloride, liquid carbon dioxide, carbon disulfide, liquid ammonia, and mixtures thereof wherein the carbon nanostructure is obtained by placing the organic solvent in a reactor and applying sufficient temperature and pressure to the organic solvent to carry out decomposition thereof, wherein the temperature to carry out decomposition is within the range of 40-800° C. and the pressure to carry out decomposition is within the range of 1-500 atm.

2. The carbon nanostructure according to claim 1 , which is doped with a heteroatom.

3. The carbon nanostructure according to claim 2 , wherein the heteroatom is at least one selected from the group consisting of nitrogen (N), fluorine (F), oxygen (O), phosphorus (P), boron (B), sulfur (S), chlorine (CI), bromine (Br) and iodine (I), other than carbon (C).

4. The carbon nanostructure according to claim 1 , wherein the organic solvent further comprises a metal or metal precursor, and the organic molecules are metal-organic molecules formed through the binding of a decomposition product of the metal or metal precursor with a decomposition product of the organic solvent.

5. The carbon nanostructure according to claim 4 , which comprises a metal-carbon nanostructure core and the metal-organic molecules bound to and grown on the metal-carbon nanostructure core, wherein the metal-carbon nanostructure core is a combination of the metal-organic molecules.

6. The carbon nanostructure according to claim 4 , which is a decomposition product of a metal-carbon precursor, wherein the metal-carbon precursor is a combination of the metal-organic molecules.

7. The carbon nanostructure according to claim 4 , wherein the metal is at least one selected from the group consisting of platinum (Pt), ruthenium (Ru), copper (Cu), iron (Fe), nickel (Ni), cobalt (Co), palladium (Pd), tungsten (W), iridium (Ir), rhodium (Rh), strontium (Sr), cesium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), rhenium (Re), magnesium (Mg), boron (B) and aluminum (Al), and the metal precursor is at least one selected from the group consisting of CuCl 2 , CoCl 2 , OsCl 3 , CrCl 3 , (NH 3 ) 6 RuCl 3 , FeCl 3 , NiCl 2 , PdCl 2 , RuCl 3 , H 2 PtCl 6 , Pd(NO 3 ) 2 , (NH 3 ) 4 Pt(NO 3 ) 2 , Fe(NO 3 ) 3 , Ni(NO 3 ) 2 , iron acetylacetonate, ferrocene and Pt(acac) 2 .

8. The carbon nanostructure according to claim 1 , wherein the solvent is NMP, and the organic molecule is at least one selected from the group consisting of methyl 5-oxo-L-prolinate, 1-methyl-5-oxo-2-pyrrolidinyl)methyl acetate, (2S)-2-(Methoxymethyl)-1-pyrrolidinecarbaldehyde, 5-(hydroxymethyl)-1-methyl-2-pyrrolidinone, 5-(hydroxymethyl)-1-methyl-2-pyrrolidinone, (2E)-N-Hydroxy-4-methyl-3-penten-2-imine, 1-butylpyrrolidin-2-one, 1-methyl-2-pyrrolidinone, 1-ethyl-2-pyrrolidinyl)methanol, 1-(1-ethyl-2-pyrrolidinyl)methanamine, 1-[(2R)-1-ethyl-2-pyrrolidinyl]methanamine, (5E)-7-vinyl-5-undecene, (2E,9E)-2,9-undecadiene, N-ethyl-1-propanamine, N-methyl-N-nitro-1-(1-piperidinyl)methanamine, 3-(2-methyl-1-piperidinyl)-1-propanamine, 1,5-dimethyl-2-pyrrolidinone, (2S)-2-(methoxymethyl)-1-pyrrolidinecarbaldehyde, 1-(2-hydroxyethyl)-2-pyrrolidinone, 5-methyl-2-octyl-3(2H)-furanone, 3-hydroxy-3-phenylpropyl carbamate, 2-hydroxypropanoic acid, 4-penten-2-ol, N-(2-aminoethyl)acetamide, N-acetyl-N-methylacetamide, N-ethylformamide, 1-(3-hydroxypropyl)-2-pyrrolidinone and 1-ethyl-N-(2-formylphenyl)prolinamide.

9. The carbon nanostructure according to claim 1 , which has a size of 0.1-100 nm.

Assignees

• Korea Inst Sci & Tech

Inventors

• Jo Han Ik
• Kang Gil Seong
• Lee Cheol-Ho
• Lee Sung Ho
• Lee Dong Su
• Kim Tae-Wook
• Lee Younki

Classifications

• C09K11/65 Primary

  containing carbon (in organic compounds C09K11/06) · CPC title

• C09K11/68

  containing chromium, molybdenum or tungsten · CPC title

• C09K11/7756

  containing neodynium · CPC title

• C01B32/15

  Nano-sized carbon materials · CPC title

• C09K11/87

  containing platina group metals · CPC title