WO2017036914A1 - Procédé de fabrication d'une structure de carbone en trois dimensions - Google Patents

Procédé de fabrication d'une structure de carbone en trois dimensions Download PDF

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Publication number
WO2017036914A1
WO2017036914A1 PCT/EP2016/070088 EP2016070088W WO2017036914A1 WO 2017036914 A1 WO2017036914 A1 WO 2017036914A1 EP 2016070088 W EP2016070088 W EP 2016070088W WO 2017036914 A1 WO2017036914 A1 WO 2017036914A1
Authority
WO
WIPO (PCT)
Prior art keywords
protein containing
natural protein
fibres
mould
packed
Prior art date
Application number
PCT/EP2016/070088
Other languages
English (en)
Inventor
Soumyaranjan Mohanty
Jenny Emnéus
Anders Wolff
Arto HEISKANEN
Original Assignee
Danmarks Tekniske Universitet
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 Danmarks Tekniske Universitet filed Critical Danmarks Tekniske Universitet
Publication of WO2017036914A1 publication Critical patent/WO2017036914A1/fr

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Classifications

    • 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
    • C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30

Definitions

  • the present invention relates to a method for fabricating a three-dimensional carbon structure, e.g. for use as a scaffold for tissue engineering, as electrode materials for batteries, fuel cells and supercapacitors, as sorbents for separation processes and gas storage, as supporters for many important catalysts, etc.
  • a method for fabricating a three-dimensional carbon structure e.g. for use as a scaffold for tissue engineering, as electrode materials for batteries, fuel cells and supercapacitors, as sorbents for separation processes and gas storage, as supporters for many important catalysts, etc.
  • the micro-porosity of the resulting three-dimensional carbon structure can be controlled, and any desired three-dimensional shape of the structure can be obtained.
  • conductive porous scaffolds made from a biocompatible material. It is, furthermore, desirable to be able to provide such scaffolds in various sizes and shapes, and with a scalable porosity. Finally, it is desirable to be able to provide such scaffolds in an easy and cost effective manner.
  • US 2008/0085648 Al discloses a method of producing an electric conductive material by spirally winding a yarn composed of organic fibres on a core member. The core member is removed, and the yarn is carbonized. In the method disclosed in US 2008/0085648 Al the packing density of the spirally wound yarn is not controlled, and neither is the porosity of the carbonized yarn.
  • US 2012/0125071 Al discloses carbon moulds for use in the fabrication of bulk metallic glass parts and moulds.
  • a master shape is patterned into a pyrolyzable material, and the master shape is pyrolyzed into a carbon mould.
  • natural protein containing fibres are packed into the mould at a predetermined packing density.
  • a structure which comprises or consist of packed natural protein containing fibres, i.e. a packed natural protein containing fibre structure. Since the packed natural protein containing fibre structure has been obtained by packing protein containing fibres into the mould, the packed natural protein containing fibre structure has a size and a shape which corresponds to the size and shape of the mould. Furthermore, the packing density of the packed natural fibre containing structure can be controlled by controlling the packing process to obtain a predetermined packing density.
  • porosity of the resulting three-dimensional porous, electrically conducting carbon structure depends on the packing density as well as on the pattern, with which the natural protein containing fibres are packed.
  • the step of performing pyrolysis on the packed natural protein containing fibre structure may comprise positioning the packed natural carbon containing fibres in a furnace and reducing an oxygen level inside the furnace, such as minimising the oxygen content inside the furnace. This may, e.g., be obtained by supplying an inert gas, such as nitrogen, into the furnace.
  • an inert gas such as nitrogen
  • the method may further comprise the step of cutting the natural protein containing fibres before packing the fibres into the mould.
  • the cutting may be performed using mechanical or chemical methods. According to this embodiment, the size of the natural protein containing fibres is controlled, and the smaller, cut fibres fit more easily into the mould.
  • the method may further comprise the step of suspending the natural protein containing fibres into solution, after cutting the fibres and before packing the fibres into the mould.
  • the fibres solution may further be dried, e.g. by means of air drying or freeze drying, before performing the pyrolysis step.
  • the porosity of the three-dimensional porous, electrically conducting carbon structure could be measured directly, e.g., by BET (Brunauer, Emmett and Teller) analysis, i.e. by physical adsorption of a gas on the surface of the solid and by calculating the amount of adsorbate gas corresponding to a monomolecular layer on the surface.
  • BET Brunauer, Emmett and Teller
  • the determination is usually carried out at the temperature of liquid nitrogen.
  • the amount of gas adsorbed can be measured by a volumetric or continuous flow procedure.
  • Figs. 1-4 illustrate a method according to a first embodiment of the invention.
  • Fig. 1 is a perspective view of a mould 1 defining a volume 2 having a substantially cylindrical shape.
  • natural protein containing fibres e.g. in the form of silk fibres, have been packed into the volume 2 of the mould 1.
  • the fibres form a packed natural protein containing fibre structure 3.
  • the fibres have been packed in such a manner that the packed natural protein containing fibre structure 3 has a predetermined and desired packing density. This may, e.g., be obtained by providing a weighed amount of fibres which will result in the desired packing density when the weighed amount of fibres exactly fills the volume 2 defined by the mould 1, and then packing these fibres into the volume 2 defined by the mould 1.
  • the packed natural protein containing fibre structure 3 and the through-going rods 5 have been removed from the mould 1.
  • the through-going rods 5 have been removed from the packed natural protein containing fibre structure 3, thereby leaving eight through-going channels 6 in the packed natural protein containing fibre structure 3. This may, e.g., be obtained by removing the through-going rods 6 in a mechanical manner, or by dissolving the through-going rods 5.
  • pyrolysis has been performed on the packed natural protein containing fibre structure 3, and thereby a three-dimensional porous and electrically conducting carbon structure 4 has been obtained. As described above with reference to Figs.

Abstract

La présente invention concerne un procédé de fabrication d'une structure de carbone en trois dimensions (4). Un moule (1) définissant une forme en trois dimensions est utilisé, et des fibres contenant une protéine naturelle sont tassées dans le moule (1) à une densité de tassement prédéterminée. La structure fibreuse contenant une protéine naturelle tassée (3) subit une pyrolyse, tout en étant encore dans le moule (1) ou après avoir été retirée du moule (1). De ce fait, une structure de carbone en trois dimensions électro-conductrice et poreuse (4) présentant une forme en trois dimensions définie par la forme en trois dimensions du moule (1) et une porosité définie par la densité de tassement de la structure fibreuse contenant une protéine naturelle tassée est obtenue (3). La structure de carbone (4) est tout à fait appropriée pour une utilisation en tant qu'échafaudage pour le génie tissulaire, ou pour matériau pour batteries, piles à combustible, supercondensateurs, sorbants pour des procédés de séparation, stockage de gaz, supports pour de nombreux catalyseurs importants, etc.
PCT/EP2016/070088 2015-08-28 2016-08-25 Procédé de fabrication d'une structure de carbone en trois dimensions WO2017036914A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15182928 2015-08-28
EP15182928.0 2015-08-28

Publications (1)

Publication Number Publication Date
WO2017036914A1 true WO2017036914A1 (fr) 2017-03-09

Family

ID=54106136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/070088 WO2017036914A1 (fr) 2015-08-28 2016-08-25 Procédé de fabrication d'une structure de carbone en trois dimensions

Country Status (1)

Country Link
WO (1) WO2017036914A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111434607A (zh) * 2019-01-11 2020-07-21 国家纳米科学中心 金属磷化物和杂原子掺杂多孔碳复合材料及其制备与应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999033641A1 (fr) * 1997-12-24 1999-07-08 Molecular Geodesics, Inc. Materiaux charpente pour mousse
US20040258729A1 (en) * 2001-09-11 2004-12-23 Czernuszka Jan Tadeusz Tissue engineering scaffolds
US20080085648A1 (en) 2006-10-04 2008-04-10 Shinano Kenshi Kabushiki Kaisha Electric conductive material and method of producing the same
US20120125071A1 (en) 2009-03-27 2012-05-24 Jan Schroers Carbon molds for use in the fabrication of bulk metallic glass parts and molds

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999033641A1 (fr) * 1997-12-24 1999-07-08 Molecular Geodesics, Inc. Materiaux charpente pour mousse
US20040258729A1 (en) * 2001-09-11 2004-12-23 Czernuszka Jan Tadeusz Tissue engineering scaffolds
US20080085648A1 (en) 2006-10-04 2008-04-10 Shinano Kenshi Kabushiki Kaisha Electric conductive material and method of producing the same
US20120125071A1 (en) 2009-03-27 2012-05-24 Jan Schroers Carbon molds for use in the fabrication of bulk metallic glass parts and molds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111434607A (zh) * 2019-01-11 2020-07-21 国家纳米科学中心 金属磷化物和杂原子掺杂多孔碳复合材料及其制备与应用

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