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WO2015050352A1 - Procédé de préparation d'un composite de nanotubes de carbone-graphène, et composite de nanotubes de carbone-graphène ainsi préparé - Google Patents

Procédé de préparation d'un composite de nanotubes de carbone-graphène, et composite de nanotubes de carbone-graphène ainsi préparé Download PDF

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Publication number
WO2015050352A1
WO2015050352A1 PCT/KR2014/009154 KR2014009154W WO2015050352A1 WO 2015050352 A1 WO2015050352 A1 WO 2015050352A1 KR 2014009154 W KR2014009154 W KR 2014009154W WO 2015050352 A1 WO2015050352 A1 WO 2015050352A1
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WO
WIPO (PCT)
Prior art keywords
carbon nanotube
graphene
graphene composite
mixture
oxide
Prior art date
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Ceased
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PCT/KR2014/009154
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English (en)
Korean (ko)
Inventor
윤동명
권순근
권지민
김민석
박영민
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Corning Precision Materials Co Ltd
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Corning Precision Materials Co Ltd
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Publication date
Application filed by Corning Precision Materials Co Ltd filed Critical Corning Precision Materials Co Ltd
Publication of WO2015050352A1 publication Critical patent/WO2015050352A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
    • 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
    • C01B32/158—Carbon nanotubes
    • C01B32/16—Preparation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
    • 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
    • C01B32/158—Carbon nanotubes
    • C01B32/16—Preparation
    • C01B32/162—Preparation characterised by catalysts
    • 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
    • C01B32/182—Graphene
    • C01B32/184—Preparation
    • 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
    • C01B32/182—Graphene
    • C01B32/194—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2202/00—Structure or properties of carbon nanotubes
    • C01B2202/20—Nanotubes characterized by their properties
    • C01B2202/34—Length
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
    • H01M4/8673—Electrically conductive fillers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present invention relates to a method for producing a carbon nanotube-graphene composite and a carbon nanotube-graphene composite prepared by the present invention. More specifically, the carbon nanotubes are in a direction perpendicular to the graphene flakes having excellent electrical conductivity. By controlling the structure that is connected, that is, the carbon nanotubes stand up from the surface of the graphene flakes on the plane, carbon nanotubes that can produce a carbon nanotube-graphene composite having excellent electrical conductivity and electron mobility The present invention relates to a graphene composite production method and a carbon nanotube-graphene composite prepared thereby.
  • electrode materials of an energy storage medium such as an electric double layer capacitor and a fuel cell exhibit excellent characteristics when the passage of electrolyte ions is secured and the area (effective specific surface area) that can be adsorbed on the surface is wide.
  • the electrode material has excellent electrical conductivity, the capacitance characteristic is improved.
  • materials having high electrical conductivity such as carbon black were mixed and used as electrode materials.
  • graphene and carbon nanotubes are spotlighted as materials having excellent electrical conductivity and a large specific surface area of 100 times or more of copper.
  • an electrode material of an energy storage medium when the nano-materials such as graphene and carbon nanotubes are structured, not only a pore structure in which electrolyte ions can be easily moved, but also excellent electrical conductivity is used. The movement of is smooth, and the capacity characteristic can be maximized.
  • a carbon nanotube-graphene composite was prepared as an electrode material of an energy storage medium.
  • the direction in which the carbon nanotubes are formed on the graphene does not coincide with the direction in which the electrons move in the carbon nanotubes. .
  • an object of the present invention is a structure in which the carbon nanotubes are connected in a direction perpendicular to the graphene flakes in a direction excellent in electrical conductivity, that is, carbon Method of manufacturing a carbon nanotube-graphene composite that can produce a carbon nanotube-graphene composite having excellent electrical conductivity and electron mobility by controlling the nanotubes to stand up from the surface of the graphene flake on the plane and It is to provide a carbon nanotube-graphene composite prepared thereby.
  • the carbon nanotubes from the catalyst is distributed on the surface of the graphene oxide reduced in the mixture preparation step and the mixture heat-treatment step to prepare a mixture of graphene oxide and catalyst, the mixture manufacturing step It provides a carbon nanotube-graphene composite manufacturing method comprising a heat treatment step of forming a mixture.
  • the mixture may be heat treated at 600 ⁇ 900 °C.
  • the mixture heat treatment step may be performed in an inert atmosphere.
  • the mixture manufacturing step may further comprise a graphene oxide manufacturing step for producing the graphene oxide.
  • the graphene oxide manufacturing step may include a first process of acid-processing graphite to form graphite oxide, and a second process of layer-separating the graphene oxide from the graphite oxide.
  • the liquid phase ultrasonic treatment may be performed after adding the graphite oxide to the solvent.
  • the catalyst may be stirred in an aqueous solution containing the graphene oxide.
  • the catalyst in the step of preparing the mixture, may be dissolved in a solvent and then added to the aqueous solution.
  • the aqueous solution may be filtered and dried after the stirring.
  • the carbon nanotube-graphene composite may be acid treated and dried.
  • the carbon nanotubes may be formed to form a standing structure from the surface of the reduced graphene oxide.
  • carbon nanotubes characterized in that it comprises a graphene flake made of reduced graphene oxide and at least one carbon nanotube formed to form a structure standing up from the surface of the graphene flake on the plane It provides a graphene complex.
  • the carbon nanotubes may be formed to a length of 1 ⁇ 100nm.
  • the graphene flakes and the carbon nanotubes may form a structure that is sequentially stacked repeatedly in one direction.
  • the carbon nanotubes are connected in a direction perpendicular to the graphene flakes in the direction of excellent electrical conductivity, that is, the carbon nanotubes to form a structure standing up from the surface of the graphene flakes on the plane,
  • a carbon nanotube-graphene composite having excellent electrical conductivity and electron mobility can be manufactured, and high capacity and high output of a fuel cell employing the same as an electrode material can be manufactured.
  • FIG. 1 is a process flow chart illustrating a method for producing a carbon nanotube-graphene composite according to an embodiment of the present invention.
  • Figure 2 is a schematic diagram showing a carbon nanotube-graphene composite prepared by the carbon nanotube-graphene composite manufacturing method according to an embodiment of the present invention.
  • 3 and 4 are photographs taken with a runner electron microscope by varying the magnification of the surface of the carbon nanotube-graphene composite prepared by the carbon nanotube-graphene composite manufacturing method according to an embodiment of the present invention.
  • Figure 5 is a schematic diagram showing a comparison between the carbon nanotube-graphene composite prepared according to the embodiment of the present invention and the carbon nanotube-graphene composite prepared according to the prior art.
  • carbon nanotubes used as the electrode material of the energy storage medium, such as electric double layer capacitor or fuel cell -Graphene composite 100 is a method for manufacturing.
  • the carbon nanotube-graphene composite manufacturing method includes a mixture preparation step (S1) and a mixture heat treatment step (S2).
  • the mixture preparation step (S1) is a step of preparing a mixture of graphene oxide (graphene oxide) and the catalyst.
  • hydrophilic graphene oxide is dispersed in water.
  • an organic solvent including a carbon source for example, benzene, toluene, acetone, or the like is not mixed.
  • the catalyst is added to this aqueous solution and stirred.
  • the catalyst is dissolved in a solvent such as water and then added to an aqueous solution in which graphene oxide is dispersed.
  • iron oxide (Fe (III)) may be used as a catalyst that serves as a seed for carbon nanotube (CNT) growth. Accordingly, in the mixture preparation step (S1), for example, iron oxide (Fe (III)) may be dissolved in water at a concentration of 10 ⁇ M.
  • the hydroxylamine (hydroxylamine) as a reducing agent may also be dissolved together with iron oxide (Fe (III)) and added to an aqueous solution in which graphene oxide is dispersed. .
  • the hydroxylamine may be dissolved at 400 ⁇ M and then added to the aqueous solution in which graphene oxide is dispersed together with the iron oxide (Fe (III)) solution having a concentration of 10 ⁇ M.
  • the mixture preparation step (S1) in order to evenly disperse the iron oxide (Fe (III)) catalyst added to the aqueous solution in which graphene oxide is dispersed, it may be stirred using ultrasonic waves. Then, in the mixture preparation step (S1), the stirred aqueous solution is filtered to remove water from the mixture, and then dried through an oven, which is preferably dried in an oven maintained at 80 ° C. for about 1 hour.
  • the stirred aqueous solution is filtered to remove water from the mixture, and then dried through an oven, which is preferably dried in an oven maintained at 80 ° C. for about 1 hour.
  • the carbon nanotube-graphene composite manufacturing method may further comprise a graphene oxide manufacturing step for producing graphene oxide before the mixture preparation step (S1).
  • a graphene oxide manufacturing step graphite is first subjected to an acid treatment (Hummer's method) to produce graphite oxide having a hydroxyl group, an epoxide group, and a carboxyl group on the surface. Then, graphene oxide is obtained through layer separation from the produced graphite oxide.
  • the layer separation process may be performed by adding graphite oxide to distilled water, which is a solvent, at a concentration of approximately 0.1 g / L to 1 g / L, followed by liquid sonication.
  • a step of heat-treating the mixture is carried out.
  • the mixture heat treatment step (S2) without using a toxic gas such as carbonized gas such as methane or acetylene, and without using a special high-pressure device or electromagnetic waves, only heat in the mixture in an inert atmosphere Through the process of applying, to form the carbon nanotubes 120 of a short length on the surface of the graphene flakes (110). Accordingly, in the mixture heat treatment step (S2), for example, the mixture is heat treated at 600 to 900 ° C. in a firing furnace sufficiently flowed with nitrogen gas.
  • the produced carbon nanotube-graphene composite 100 can be acid treated and dried.
  • the carbon nanotube-graphene composite 100 may be immersed in a mild acid solution and dried at a temperature of 120 degrees or more.
  • FIG. 3 is an enlarged photo 10,000 times the surface of the prepared carbon nanotube-graphene composite
  • Figure 4 is an enlarged photo 50,000 times the surface of the prepared carbon nanotube-graphene composite.
  • FIG. 3 it can be seen that carbon nanotubes having a short length are formed on the surface of graphene oxide and are evenly distributed.
  • the material that appears evenly on the surface of graphene oxide, that is, the carbon nanotube is 100 nm or less It can be seen that it has a length of.
  • the carbon nanotube-graphene composite 100 prepared by the carbon nanotube-graphene composite manufacturing method according to the embodiment of the present invention is a graphene flake 110 made of reduced graphene oxide and It is formed to include at least one carbon nanotube 120 formed to form a structure standing up from the surface of the graphene flake 110 on the plane.
  • the graphene flakes 110 and the carbon nanotubes 120 form a stacked structure in order to repeat sequentially in one direction.
  • the carbon nanotubes 120 are formed to have a length (or height) of 1 to 100 nm from the surface of the graphene flakes 110.
  • the carbon nanotubes 120 form a structure standing up from the surface of the graphene flake 110 which is reduced graphene oxide, when the carbon nanotubes 120 are applied to the electrode material of the fuel cell, a space sufficient for the electrolyte ions to move is provided. It can be secured.
  • FIG. 5 is a schematic diagram showing a comparison between the carbon nanotube-graphene composite (a) and the carbon nanotube-graphene composite (b) according to the prior art prepared according to an embodiment of the present invention.
  • the carbon nanotubes 120 are formed in the graphene flakes 110 in the direction of carbon.
  • the nanotube 120 coincides with the direction in which the electrons move, that is, the carbon nanotubes 120 are connected to the graphene flakes 110, which are excellent in electrical conductivity, in a vertical direction, so that the movement of the electrons may be smooth.
  • the carbon nanotube-graphene composite (b) according to the prior art has a relatively excellent electrical properties compared to the carbon nanotube-graphene composite (b) according to the prior art.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

La présente invention concerne un procédé de préparation d'un composite de nanotubes de carbone-graphène, et un composite de nanotubes de carbone-graphène ainsi préparé, et plus particulièrement, un procédé de préparation d'un composite de nanotubes de carbone-graphène, permettant de préparer un composite de nanotubes de carbone-graphène présentant des propriétés remarquables de conductivité électrique et de mobilité d'électrons par le contrôle d'une structure, dans laquelle les nanotubes de carbone sont reliés selon une direction verticale aux paillettes de graphène qui constitue la direction présentant une conductivité électrique remarquable, à savoir une structure dans laquelle les nanotubes de carbone sont à la verticale par rapport à la surface des paillettes de graphène dans le plan ; et un composite de nanotubes de carbone-graphène ainsi préparé. À cette fin, la présente invention concerne un procédé de préparation d'un composite de nanotubes de carbone-graphène et un composite de nanotubes de carbone-graphène ainsi préparé, le procédé comprenant : une étape de préparation de mélange permettant de préparer un mélange d'oxyde de graphène et de catalyseur ; et une étape de traitement thermique du mélange permettant de former des nanotubes de carbone à partir du catalyseur distribués à la surface de l'oxyde de graphène, qui est réduit à l'étape de préparation du mélange.
PCT/KR2014/009154 2013-10-01 2014-09-30 Procédé de préparation d'un composite de nanotubes de carbone-graphène, et composite de nanotubes de carbone-graphène ainsi préparé Ceased WO2015050352A1 (fr)

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KR20130117295A KR101484090B1 (ko) 2013-10-01 2013-10-01 탄소나노튜브―그래핀 복합체 제조방법 및 이에 의해 제조된 탄소나노튜브―그래핀 복합체
KR10-2013-0117295 2013-10-01

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CN110229465A (zh) * 2019-05-16 2019-09-13 宿迁南航新材料与装备制造研究院有限公司 一种石墨烯/碳纳米管的聚合物基复合材料及其制备方法
US20210005853A1 (en) * 2015-05-06 2021-01-07 Semiconductor Energy Laboratory Co., Ltd. Secondary battery and electronic device
CN113113622A (zh) * 2021-03-16 2021-07-13 国家电投集团氢能科技发展有限公司 一种燃料电池催化层浆料及其制备方法和应用
CN113800503A (zh) * 2021-08-30 2021-12-17 兰州大学 一种多孔石墨烯负载氧化铁复合负极材料及其制备方法与应用
CN114162876A (zh) * 2021-12-10 2022-03-11 盐城工学院 一种Co9S8@碳纳米管@石墨烯复合材料的制备方法及应用

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KR101830111B1 (ko) * 2016-04-15 2018-02-21 한국과학기술원 탄소 나노튜브 및 그래핀의 제조 방법
KR102060566B1 (ko) 2017-02-03 2019-12-30 주식회사 엘지화학 탄소나노튜브 섬유의 제조방법 및 이로 제조된 탄소나노튜브 섬유
KR101994766B1 (ko) 2017-05-24 2019-07-01 대주전자재료 주식회사 그래핀-탄소나노튜브 복합체 및 이의 제조 방법
KR102081661B1 (ko) 2019-06-24 2020-02-27 대주전자재료 주식회사 그래핀-탄소나노튜브 복합체 및 이의 제조 방법
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WO2025079922A1 (fr) * 2023-10-13 2025-04-17 주식회사 동진쎄미켐 Composite, matériau conducteur, électrode et batterie secondaire le comprenant
CN118906574B (zh) * 2024-08-26 2025-09-02 天津大学 一种用于电磁防护的多层浓度梯度石墨烯、聚酰亚胺纤维、碳纳米管复合气凝胶的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110013742A (ko) * 2009-08-03 2011-02-10 인제대학교 산학협력단 신규한 구조의 탄소계 나노복합체 및 이의 제조방법
KR20110084627A (ko) * 2010-01-18 2011-07-26 인제대학교 산학협력단 신규한 구조의 탄소계 나노복합체 및 이의 제조방법
JP2012199305A (ja) * 2011-03-18 2012-10-18 Fujitsu Ltd 半導体装置
WO2013119295A1 (fr) * 2011-11-18 2013-08-15 William Marsh Rice University Matériaux hybrides à base de graphène-nanotubes de carbone et leur utilisation à titre d'électrodes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110013742A (ko) * 2009-08-03 2011-02-10 인제대학교 산학협력단 신규한 구조의 탄소계 나노복합체 및 이의 제조방법
KR20110084627A (ko) * 2010-01-18 2011-07-26 인제대학교 산학협력단 신규한 구조의 탄소계 나노복합체 및 이의 제조방법
JP2012199305A (ja) * 2011-03-18 2012-10-18 Fujitsu Ltd 半導体装置
WO2013119295A1 (fr) * 2011-11-18 2013-08-15 William Marsh Rice University Matériaux hybrides à base de graphène-nanotubes de carbone et leur utilisation à titre d'électrodes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210005853A1 (en) * 2015-05-06 2021-01-07 Semiconductor Energy Laboratory Co., Ltd. Secondary battery and electronic device
US11916184B2 (en) * 2015-05-06 2024-02-27 Semiconductor Energy Laboratory Co., Ltd. Secondary battery and electronic device
US12368180B2 (en) 2015-05-06 2025-07-22 Semiconductor Energy Laboratory Co., Ltd. Secondary battery and electronic device
CN110229465A (zh) * 2019-05-16 2019-09-13 宿迁南航新材料与装备制造研究院有限公司 一种石墨烯/碳纳米管的聚合物基复合材料及其制备方法
CN113113622A (zh) * 2021-03-16 2021-07-13 国家电投集团氢能科技发展有限公司 一种燃料电池催化层浆料及其制备方法和应用
CN113113622B (zh) * 2021-03-16 2022-01-28 国家电投集团氢能科技发展有限公司 一种燃料电池催化层浆料及其制备方法和应用
CN113800503A (zh) * 2021-08-30 2021-12-17 兰州大学 一种多孔石墨烯负载氧化铁复合负极材料及其制备方法与应用
CN114162876A (zh) * 2021-12-10 2022-03-11 盐城工学院 一种Co9S8@碳纳米管@石墨烯复合材料的制备方法及应用

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