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公开(公告)号：US20240010818A1
公开(公告)日：2024-01-11
申请号：US18372603
申请日：2023-09-25
申请人： Lyten, Inc.
发明人： Michael W. Stowell , Bryce H. Anzelmo , Bruce Lanning , Daniel Cook , Elena Rogojina , Karel Vanheusden , Margaret Hines , John Baldwin , Chandra B. KC
CPC分类号： C08K9/02 , C01B32/194 , C08K3/04 , C08K11/00 , C08K13/08 , H01J37/32229 , C08K2201/011 , H01J2237/338 , C01B2204/02 , C01B2204/04 , C01B2204/30 , C01P2004/24
摘要： Methods include producing tunable carbon structures and combining carbon structures with a polymer to form a composite material. Carbon structures include crinkled graphene. Methods also include functionalizing the carbon structures, either in-situ, within the plasma reactor, or in a liquid collection facility. The plasma reactor has a first control for tuning the specific surface area (SSA) of the resulting tuned carbon structures as well as a second, independent control for tuning the SSA of the tuned carbon structures. The composite materials that result from mixing the tuned carbon structures with a polymer results in composite materials that exhibit exceptional favorable mechanical and/or other properties. Mechanisms that operate between the carbon structures and the polymer yield composite materials that exhibit these exceptional mechanical properties are also examined.
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公开(公告)号：US11866333B2
公开(公告)日：2024-01-09
申请号：US18076421
申请日：2022-12-07
发明人： Vig Sherrill , Mira Baraket , Richard Philpott
IPC分类号： C23C16/02 , C23C16/26 , C01B32/182 , C01B32/186 , C01B32/184 , B01J19/24 , C01B32/05 , B01J19/18 , B82Y40/00
CPC分类号： C01B32/182 , B01J19/18 , B01J19/245 , C01B32/05 , C01B32/184 , C01B32/186 , C23C16/0209 , C23C16/26 , B82Y40/00 , C01B2204/02
摘要： Systems and method for producing graphene on a substrate are described. Certain types of exemplar systems include lateral arrangements of a substrate gas scavenging environment and an annealing environment. Certain other types of exemplar systems include lateral arrangements of a graphene producing environment and a cooling environment, which cools the graphene produced on the substrate. Yet other types of exemplar systems include lateral arrangements of a localized annealing environment, localized graphene producing environment and a localized cooling environment inside the same enclosure.
Certain type of exemplar methods for producing graphene on a substrate include scavenging a first portion of the substrate and preferably, contemporaneously annealing a second portion of the substrate. Certain other type of exemplar methods for producing graphene include novel annealing techniques and/or implementing temperature profiles and gas flow rate profiles that vary as a function of lateral distance and/or cooling graphene after producing it.-
公开(公告)号：US20230365411A1
公开(公告)日：2023-11-16
申请号：US17663453
申请日：2022-05-16
发明人： Bor Z. Jang
IPC分类号： C01B32/184 , C01B32/196
CPC分类号： C01B32/184 , C01B32/196 , C01B2204/02 , C01B2204/04 , C01B2204/32 , C01P2002/78 , B82Y30/00
摘要： Provided is a method of producing isolated graphene sheets directly from a biomass, the method including: (A) providing a biomass in a liquid state, solution state, solid state, or semi-solid state; (B) heat treating the biomass and, concurrently or sequentially, using chemical or mechanical means to form graphene domains dispersed in a disordered matrix of carbon or hydrocarbon molecules, wherein the graphene domains are each composed of from 1 to 30 planes of hexagonal carbon atoms or fused aromatic rings and, in the situations wherein there are 2-30 planes in a graphene domain, having an inter-graphene space between two planes of hexagonal carbon atoms or fused aromatic rings no less than 0.4 nm; and (C) separating and isolating these planes of hexagonal carbon atoms or fused aromatic rings to recover graphene sheets from said disordered matrix.
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公开(公告)号：US11767414B2
公开(公告)日：2023-09-26
申请号：US17749849
申请日：2022-05-20
申请人： Lyten, Inc.
发明人： Michael W. Stowell , Bryce H. Anzelmo , Bruce Lanning , Daniel Cook , Elena Rogojina , Karel Vanheusden , Margaret Hines , John Baldwin , Chandra B. Kc
CPC分类号： C08K9/02 , C01B32/194 , C08K3/04 , C08K11/00 , C08K13/08 , H01J37/32229 , C01B2204/02 , C01B2204/04 , C01B2204/30 , C01P2004/24 , C08K2201/011 , H01J2237/338
摘要： Methods include producing tunable carbon structures and combining carbon structures with a polymer to form a composite material. Carbon structures include crinkled graphene. Methods also include functionalizing the carbon structures, either in-situ, within the plasma reactor, or in a liquid collection facility. The plasma reactor has a first control for tuning the specific surface area (SSA) of the resulting tuned carbon structures as well as a second, independent control for tuning the SSA of the tuned carbon structures. The composite materials that result from mixing the tuned carbon structures with a polymer results in composite materials that exhibit exceptional favorable mechanical and/or other properties. Mechanisms that operate between the carbon structures and the polymer yield composite materials that exhibit these exceptional mechanical properties are also examined.
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公开(公告)号：US11691880B2
公开(公告)日：2023-07-04
申请号：US17388600
申请日：2021-07-29
发明人： Jaehyun Lee , Jiyun Moon
IPC分类号： C01B32/194 , C01B32/19 , C01G39/06 , C30B33/00 , C30B29/46 , C30B29/64 , C30B29/02 , B82Y40/00 , B82Y30/00
CPC分类号： C01B32/194 , C01B32/19 , C01G39/06 , C30B29/02 , C30B29/46 , C30B29/64 , C30B33/00 , B82Y30/00 , B82Y40/00 , C01B2204/02
摘要： The present embodiments relate to a method for manufacturing a two-dimensional material using a top-down method, the method includes the steps of preparing a bulk crystal, forming a metal layer on the bulk crystal, and then attaching a thermal release tape on the metal layer, exfoliating a two-dimensional material to which the metal layer and the thermal release tape have been attached from the bulk crystal, transferring the two-dimensional material to which the metal layer and the thermal release tape have been attached onto a substrate, and removing the thermal release tape and the metal layer from the substrate onto which the two-dimensional material has been transferred.
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公开(公告)号：US20180170759A1
公开(公告)日：2018-06-21
申请号：US15578953
申请日：2016-06-02
申请人： University of Exeter
IPC分类号： C01B32/186 , C01B32/194 , C30B25/18 , C30B29/02 , C30B29/64 , G06F3/044
CPC分类号： C01B32/186 , C01B32/194 , C01B2204/02 , C30B25/186 , C30B29/02 , C30B29/64 , G06F3/044 , G06F2203/04102 , G06F2203/04103
摘要： A method for use in the synthesis of graphene is described that comprises the steps of annealing a substrate in a hydrogen gas atmosphere, subsequently undertaking a deposition and nucleation step in which a relatively thick carbon layer is deposited onto the substrate and subsequently thinned to form small graphene islands or nuclei, undertaking a graphene growth step in which the graphene islands or nuclei expand and coalesce, and subsequently allowing the substrate to cool. A sensor 10 incorporating the graphene sheet is also described.
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公开(公告)号：US09834445B2
公开(公告)日：2017-12-05
申请号：US14953965
申请日：2015-11-30
发明人： Hee-Yeon Kim , Guk-Hyeon Kwon
IPC分类号： C01B31/04 , B01J19/24 , C01B32/186
CPC分类号： C01B32/186 , B01J19/247 , C01B2204/02 , C01B2204/26
摘要： Disclosed are a porous graphene member having through-holes formed therein, a method for manufacturing the porous graphene member, and an apparatus for manufacturing the porous graphene member using the method. The method comprises: introducing a carbon source and a substitution reaction source into a deposition furnace; thermally decomposing the carbon source and the substitution reaction source simultaneously to generate carbon atoms and substitution atoms, respectively, wherein the carbon atoms are deposited on a substrate present within the deposition furnace to form a graphene film consisting of a monoatomic layer structure, and during the deposition of carbon atoms, the substitution atoms not only interfere with covalent bonds between the carbon atoms to cause crystal defects, but also substitute for parts of the carbon atoms to in situ form through-holes in the graphene, thereby creating the porous graphene member; and releasing the porous graphene member from the substrate.
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公开(公告)号：US09803292B2
公开(公告)日：2017-10-31
申请号：US13592564
申请日：2012-08-23
CPC分类号： C30B25/04 , B82Y30/00 , B82Y40/00 , C01B32/186 , C01B2204/02 , C01B2204/04 , C30B29/02 , H01L21/02425 , H01L21/02527 , H01L21/0262 , H01L21/02642 , H01L21/02664 , H01L29/1606
摘要： Methods for growing microstructured and nanostructured graphene by growing the microstructured and nanostructured graphene from the bottom-up directly in the desired pattern are provided. The graphene structures can be grown via chemical vapor deposition (CVD) on substrates that are partially covered by a patterned graphene growth barrier which guides the growth of the graphene.
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公开(公告)号：US09802206B2
公开(公告)日：2017-10-31
申请号：US14401533
申请日：2013-05-24
CPC分类号： B03C1/30 , B02C19/06 , B02C23/00 , B02C23/08 , B03C2201/18 , B82Y30/00 , B82Y40/00 , C01B32/184 , C01B32/19 , C01B32/20 , C01B2204/02
摘要： A dispersion of suspended single-layer graphene, multilayer graphene, and graphite is used. A magnetic field is applied to the dispersion to separate the single-layer graphene from the dispersion. By applying the magnetic field, the single-layer graphene, the multilayer graphene, and the graphite are situated at different locations in solvent by the difference in the diamagnetism strengths of the single-layer graphene, the multilayer graphene, and the graphite.
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公开(公告)号：US20170233255A1
公开(公告)日：2017-08-17
申请号：US14998784
申请日：2016-02-17
申请人： Aruna Zhamu , Bor Z. Jang
发明人： Aruna Zhamu , Bor Z. Jang
CPC分类号： C25B3/00 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B2204/02 , C01B2204/04 , Y10S977/734 , Y10S977/842 , Y10S977/845
摘要： A method of producing isolated graphene sheets from a layered graphite, comprising: (a) forming an alkali metal ion-intercalated graphite compound by an electrochemical intercalation which uses a liquid solution of an alkali metal salt dissolved in an organic solvent as both an electrolyte and an intercalate source, layered graphite material as an anode material, and a metal or graphite as a cathode material, and wherein a current is imposed upon a cathode and an anode at a current density for a duration of time sufficient for effecting the electrochemical intercalation of alkali metal ions into interlayer spacing; and (b) exfoliating and separating hexagonal carbon atomic interlayers (graphene planes) from the alkali metal ion-intercalated graphite compound using ultrasonication, thermal shock exposure, exposure to water solution, mechanical shearing treatment, or a combination thereof to produce isolated graphene sheets.
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