Graphene three-dimensional structure and preparation method thereof
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A three-dimensional structure and graphene technology, applied in the field of three-dimensional structure and preparation of graphene, can solve problems such as retention
Inactive Publication Date: 2010-09-22
NANJING UNIV OF POSTS & TELECOMM
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Abstract
Description
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Problems solved by technology
At present, the research reports on the three-dimensional structure of graphene still stay in the range of film shape, and the preparation of bulk three-dimensional structure is still a challenging research topic.
Method used
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Examples
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Effect test
Embodiment 1
[0032] Example 1 Dissolve 30mg of graphite oxide in 45mL of water, ultrasonically treat for 60min, then transfer the solution to a magnetic stirrer and add 4.16mg of CaCl 2, after stirring for 30min, put it in a 50mL reactor and store it at 150°C for 12h. Ca after cooling 2+ Three-dimensional structure of ion-bridged cylindrical graphene.
Embodiment 2
[0033] Example 2 Dissolve 30 mg of graphite oxide in 45 mL of water, ultrasonically treat for 60 min, then transfer the solution to a magnetic stirrer and add 4.16 mg of CaCl 2 , after stirring for 30 min, NaOH solution was added to adjust the pH to 10. Then the solution was transferred to a 50mL reactor and stored at 150°C for 12h. Ca after cooling 2+ Three-dimensional structure of ion-bridged cylindrical graphene.
Embodiment 3
[0034] Example 3 Dissolve 30 mg of graphite oxide in 45 mL of water, ultrasonically treat for 60 min, then transfer the solution to a magnetic stirrer and add 2.28 mg of BaCl 2 , after stirring for 30min, put it in a 50mL reactor and store it at 150°C for 12h. Ba after cooling 2+ Three-dimensional structure of ion-bridged cylindrical graphene.
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Abstract
The invention discloses a three-dimensional structure constructed by using graphene as base units and a preparation method thereof. The graphene three-dimensional structure is formed by stacking and assembling graphene, the shape of the graphene three-dimensional structure is a similar cylinder or a polygonal prism, and the volume of the graphene three-dimensional structure is 0.1-100cm<3>. The graphene three-dimensional structure can contain water, methanol, ethanol, glycol and mixture molecules thereof, and can contain Li<+>, Na<+>, K<+>, Ag<+>, Ca<2+>, Ba<2+>, Mg<2+>, Ni<2+>, Co<2+>, Cu<2+>, Mn<2+>, Cd<2+>, Zn<2+>, Pb<2+>, Pt<2+>, Pd<2+>, Rh<2+>, Al<3+>, Fe<3+>, Au<3+>, Ru<3+> and Pt<4+> metal ions. The graphene three-dimensional structure has rich network space which can be used for filling Ni, Co, Cu, Mn, Fe, Au, Ag, Pt and Ru as well as alloy nanoparticles thereof, can be used for filling polypyrrole, polyaniline, polyacrylic acid, polythiophene, polyacrylamide and polyvinyl alcohol polymers, and can be used for filling protein, amino acid, sugar and enzyme biological molecules.
Description
technical field [0001] The invention relates to a three-dimensional graphene structure and a preparation method. Background technique [0002] Graphene, which is composed of a single layer of carbon atoms, has a series of excellent physical and chemical properties, such as excellent electrical conductivity, mechanical properties, and huge specific surface area. Single-layer graphene can be used in field-effect transistors, high-frequency devices, super microprocessors and single-molecule detectors. The three-dimensional structures composed of graphene as the basic unit, such as thin films and bulk materials, may be applied to controllable gas permeability films, anisotropic ion conductors, supercapacitors, lithium-ion batteries, molecular storage, electrochemical sensing , fuel cells, energy catalysis and other functional materials; or polymers, ceramics and metals and other composite materials. [0003] In order to realize the preparation of three-dimensional graphene str...
Claims
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Application Information
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