EP1523450A2 - Procede de fabrication de fullerenes endohedraux - Google Patents

Procede de fabrication de fullerenes endohedraux

Info

Publication number
EP1523450A2
EP1523450A2 EP03787736A EP03787736A EP1523450A2 EP 1523450 A2 EP1523450 A2 EP 1523450A2 EP 03787736 A EP03787736 A EP 03787736A EP 03787736 A EP03787736 A EP 03787736A EP 1523450 A2 EP1523450 A2 EP 1523450A2
Authority
EP
European Patent Office
Prior art keywords
fullerenes
graphite electrodes
inert gas
endohedral
gas mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03787736A
Other languages
German (de)
English (en)
Inventor
Lothar Dunsch
Petra Georgi
Frank Ziegs
Heidi ZÖLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV
Original Assignee
Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV filed Critical Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV
Publication of EP1523450A2 publication Critical patent/EP1523450A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/15—Nano-sized carbon materials
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/15—Nano-sized carbon materials
    • C01B32/152—Fullerenes
    • C01B32/154—Preparation

Definitions

  • the invention relates to a method for producing endohedral fullerenes in an arc reactor by burning graphite electrodes.
  • the method according to the invention ensures a very high fullerene yield.
  • the fullerenes produced can be used, for example, as contrast media for medical examinations.
  • the invention has for its object to provide a method for producing endohedral fullerenes in an arc reactor by burning graphite electrodes, with which it is possible to significantly increase the fullerene yield.
  • the method according to the invention is characterized in that the burning is carried out in an atmosphere which contains a reactive gas component consisting of at least two elements in an inert gas or inert gas mixture.
  • the proportion of the reactive gas component can be 5 vol% to 60 vol%.
  • the proportion is preferably 5% by volume to 10% by volume.
  • a nitrogen-containing or a carbon-containing reactive gas component is used, such as NH 3 or CH 4 or other hydrocarbons.
  • the reactive gas component can be fed to the arc reactor from the outside during the burning process or generated in the arc reactor.
  • Graphite electrodes modified with metal or metal oxides can be used in the method according to the invention.
  • graphite electrodes can be used which are modified, for example, with holmium or scandium or their oxides.
  • graphite electrodes modified with metal or metal oxides and a nitrogenous substance can also be used.
  • a can be used to modify the graphite electrodes with a nitrogen-containing substance
  • Metal cyanamide preferably calcium cyanamide or lead cyanamide, can be used.
  • a very high fullerene yield of 50 to 95% of endohedral M 3 N cluster fullerene as the main product is advantageously achieved with the method according to the invention.
  • the method can be carried out with little effort and in a simple manner and leads to reproducible results.
  • the fullerenes produced in this way can be used, for example, as contrast media for medical examinations.
  • graphite electrodes modified with holmium metal are burned off in a gas mixture containing a reactive gas component with pulsed direct current with a current strength between 75 A ' and 150 A.
  • the graphite electrodes used have a composition with the ratio of graphite: holmium of 1 mol: 0.4 mol.
  • the gas mixture consists of He and NH 3 , the NH 3 being the reactive one Component is.
  • the proportions in the gas mixture are 200 mbar He and 20 mbar NH 3 .
  • endohedral holmium nitride cluster fullerenes are formed with a yield between 85 and 95%.
  • Ho 2 0 3 modified graphite electrodes in a gas mixture containing a reactive gas component are burned with pulsed direct current with a current between 75 A and 150 A.
  • the graphite electrodes used have a composition with the ratio of graphite: M 2 0 3 of 1 mol: 0.3 mol.
  • the gas mixture consists of He and NH 3 , the NH 3 being the reactive component.
  • the proportions in the gas mixture are 200 mbar He and 20 mbar NH 3 .
  • endohedral holmium nitride cluster fullerenes are formed with a yield of around 60%.
  • graphite electrodes modified with scandium and CaNCN are burned off in a gas mixture containing a reactive gas component with pulsed direct current with a current between 75 A and 150 A.
  • the graphite electrodes used have a composition with a ratio of graphite: scandium: CaNCN of 1 mol: 0.6 mol: 0.4 mol.
  • the gas mixture consists of He and NH 3 , the NH 3 being the reactive component.
  • the proportions in the gas mixture are 200 mbar He and 10 mbar NH 3 .
  • graphite electrodes modified with Ho 2 0 3 and CaNCN are burned off in a gas mixture containing a reactive gas component with pulsed direct current with a current strength between 75 A and 150 A.
  • the graphite electrodes used have a composition with the ratio of graphite: Ho 2 0 3 : CaNCN of 1 mol: 0.4 mol: 0.4 mol.
  • the gas mixture consists of He and NH 3 , the NH 3 being the reactive component.
  • the proportions in the gas mixture are 200 mbar He and 10 mbar NH 3 .
  • endohedral holmium nitride cluster fullerenes are formed with a yield of between 50 and 70%.
  • graphite electrodes in a gas mixture containing a reactive gas component are burned off with pulsed direct current with a current of 175 A.
  • the gas mixture consists of He and CH 4 , the CH 4 being the reactive component.
  • the proportions in the gas mixture are 200 mbar He and 10 mbar CH.
  • CH 2 @C 70 is formed as the main component of the endohedral fullerenes, with C ⁇ o and C 70 making up the majority of the total fullerene content.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

L'invention concerne un procédé de fabrication de fullerènes endohédraux dans un réacteur à arc par combustion d'électrodes au graphite. L'invention vise à mettre en oeuvre un tel procédé permettant d'améliorer considérablement le rendement en fullerènes. Le procédé selon l'invention est caractérisé en ce que la combustion est réalisée dans une atmosphère contenant une composante gazeuse réactive constituée d'au moins deux éléments dans un gaz inerte ou dans un mélange de gaz inertes. De manière avantageuse, le procédé selon l'invention permet d'obtenir un rendement très élevé en fullerènes, de 50 à 95 % de fullerène M3N en bloc en tant que produit principal. Le procédé selon l'invention peut être mis en oeuvre avec des moyens réduits et de façon simple et fournit des résultats reproductibles. Les fullerènes ainsi obtenus peuvent par exemple servir d'agent de contraste dans des examens médicaux.
EP03787736A 2002-07-22 2003-07-21 Procede de fabrication de fullerenes endohedraux Withdrawn EP1523450A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10233566 2002-07-22
DE10233566 2002-07-22
PCT/DE2003/002501 WO2004016624A2 (fr) 2002-07-22 2003-07-21 Procede de fabrication de fullerenes endohedraux

Publications (1)

Publication Number Publication Date
EP1523450A2 true EP1523450A2 (fr) 2005-04-20

Family

ID=30010328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03787736A Withdrawn EP1523450A2 (fr) 2002-07-22 2003-07-21 Procede de fabrication de fullerenes endohedraux

Country Status (8)

Country Link
US (1) US20050232842A1 (fr)
EP (1) EP1523450A2 (fr)
JP (1) JP4603358B2 (fr)
CN (1) CN1671620B (fr)
AU (1) AU2003250801A1 (fr)
DE (2) DE10301722B4 (fr)
RU (1) RU2004137099A (fr)
WO (1) WO2004016624A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008317422A1 (en) * 2007-10-22 2009-04-30 Luna Innovations Incorporated Metallofullerene contrast agents
US20090250661A1 (en) * 2008-01-18 2009-10-08 Stevenson Steven A Trimetallic Nitride Clusters Entrapped Within CnN Heteroatom Cages
CN101337668B (zh) * 2008-08-11 2013-10-23 彭汝芳 制备内嵌富勒烯的方法
DE102008043654A1 (de) 2008-11-11 2010-05-20 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Diagnostisches und/oder therapeutisches Agens, Verfahren zu seiner Herstellung und Verwendung
CN102205958B (zh) * 2011-05-04 2013-01-23 中国科学技术大学 内嵌氮化物原子簇富勒烯的制备方法
CN104129775B (zh) * 2014-07-16 2015-12-30 苏州大学 一种内嵌钪氧化物团簇富勒烯的制备方法
CN106744814A (zh) * 2016-12-06 2017-05-31 河南科技学院 一种内嵌金属富勒烯的提取方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5300203A (en) * 1991-11-27 1994-04-05 William Marsh Rice University Process for making fullerenes by the laser evaporation of carbon
JPH05282938A (ja) * 1992-02-28 1993-10-29 Idemitsu Kosan Co Ltd 金属内包フラーレン類の製造方法
US5876684A (en) * 1992-08-14 1999-03-02 Materials And Electrochemical Research (Mer) Corporation Methods and apparati for producing fullerenes
JPH06199509A (ja) * 1993-01-07 1994-07-19 Nippon Telegr & Teleph Corp <Ntt> 超微粒子の安定化方法、グラファイトで包まれた超微粒子およびその製造方法
DE4335915A1 (de) * 1993-10-21 1995-04-27 Roggenkamp Karl Heinz Verfahren zur Erzeugung von Fullerenen und dotierten Buckmister Fullereren aus kohlenstoffhaltigen Granulaten und Stäuben und der Beigabe von Metallen oder seltenen Erden, wobei der zu verdampfende Rohstoff in einer tassenartigen hochtemperaturfesten Umhüllung sich befindet
JPH07189040A (ja) * 1993-12-27 1995-07-25 Nec Corp 円筒状黒鉛繊維の製造方法
JPH09309711A (ja) * 1996-03-18 1997-12-02 Toyo Tanso Kk 炭素クラスター、それを製造するための原料及びその炭素クラスターの製造方法
DE19627338A1 (de) * 1996-06-28 1998-01-02 Hahn Meitner Inst Berlin Gmbh Elektrode zur Herstellung von höheren Fullerenen nach dem Krätschmer-Huffman-Lichtbogenverfahren
WO1998030495A1 (fr) * 1997-01-13 1998-07-16 Miley George H Procede et appareil permettant de produire des molecules de carbone complexes
JP2000159514A (ja) * 1998-11-26 2000-06-13 Univ Nagoya 金属内包フラーレンの製造方法
US6303760B1 (en) * 1999-08-12 2001-10-16 Virginia Tech Intellectual Properties, Inc. Endohedral metallofullerenes and method for making the same
EP1286303A1 (fr) * 2001-08-13 2003-02-26 Hitachi Europe Limited Ordinateur quantique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004016624A2 *

Also Published As

Publication number Publication date
CN1671620A (zh) 2005-09-21
AU2003250801A1 (en) 2004-03-03
RU2004137099A (ru) 2005-07-10
US20050232842A1 (en) 2005-10-20
WO2004016624A3 (fr) 2004-05-21
JP2005533745A (ja) 2005-11-10
CN1671620B (zh) 2010-05-26
DE10301722A1 (de) 2004-02-05
JP4603358B2 (ja) 2010-12-22
AU2003250801A8 (en) 2004-03-03
DE10301722B4 (de) 2009-12-10
WO2004016624A2 (fr) 2004-02-26
DE10393502D2 (de) 2005-07-07

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