Patent
US 9,850,572METHOD FOR PRODUCTION OF THREE-DIMENSIONAL CLOSED GRAPHENE-BASED NANO-/MICROSTRUCTURES
Yusuf Ziya MENCELOGLU
US
Copyright © 2026 Matter42. All rights reserved.
Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is schematic view of a coaxial flow system for application of the method according to the present invention by melt/solution core-shell spinning and spraying techniques. Detailed Description of the Invention 5 Referring now the figure outlined before, the present invention proposes …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A p roduction method for obtain m ent of three-di m ensional closed graphene-based nano-/m icrostructures u si n g a coaxial mui ltilayer core-shell production process comprising a coaxial flow system having a first flow path and a first fluid exit at an end of said first flow path; and a second flow path circumferentially surrounding said first flow path, said second flow path having a second fluid exit, wherein-a first fluid flows through the first flo w path and exits through the first f lu i d exit;-a second fluid which is immiscible with the first fluid under the conditions where said production method is conducted, flows through the second flow path and exits through the second fluid exit such that the second fluid circumferentially covers the first fluid upon leaving the coaxial flow system: said second fluid compr i ses a graphene- b ased material, a. polymeric material and solvent; and-said graphe ne -based material is one or more material selected f r om the list consisting of graphene oxide, microwave exfoliated graphite oxide, thermally exf o liated graphene oxide, and functionalized graphene; further wherein the first fl u id is a mixture comprising o n e or more substance selected fro m the list consisting of polystyrene, copolymers thereof, polyacrylonitrile, a nd polyacrylonitrile based functionalized copolymers; and the method further comprises a subsequent ste p of removal of said substance by ther m al treatment of the three- dimensional closed graphene-based nano-/mi crostructures.
(Pr e vio u sly Presented) Method according to the Claim 1, wherei n said polymeric material comprises one or more substance selected from t he list c onsist i ng of polyacrylonitrile, copolymers thereof, polymethyl methacrylate, polyglycidyl metha cry late. polystyrene, polyacrylamide, polyacrylic acid, copolymers of said polymers, conductive polymers, and biopolymers thereof.
Method according to the Claim 1. wherein the first fluid comprises one or more solvent which further comprises inorganic nanoparticles selected from a list consisting of titaniu m dioxide, silicon dioxide, and transition metal catal y sts.
Method according to the Claim 1, wherein said solve n t is selected from the list consisting of organic solvents, aqueous solutions, and mixtures thereof.
7. Method according to Claim 1, wherein the second fluid f u rther co m prises one or more catalyst selected from the list consisting of transition metals, transition metal complexes and m etal salts f o r providing catalytic activity to the three-dim ens i onal closed graphene- b ased nano-/m icrostructures in further uses thereof.
(Withdra wn) N ethod according to any of claims 1-- 4, wherein the first fluid is a mixture comprising a substance removable by thermal treatment, ans said. method further comprises a subsequent step of evacuation of the c o re (1 I) by thermal treatment of the three-dimensional closed g r aphene-based nano-/mi crostruct u res (1 0). withdrawn
. canceled
6.. canceled
Method according to c l aim 8, wher e in the substance removable by thermal treatment is removable polymeric material selected from the list of soluble thermoplastic homopolymers, soluble thermoplastic copolymers and mixtures thereof. withdrawn
Method according to claim 9, where i n said removable polymeric material is one or more substance selected from the list consisting of polystyrene, copolymers thereof. pol yacrylonitrile, and polyacrylonitrile based Fu nctiona liz ed copolymers. withdrawn
11. Method according to Clai m 1, w h erein said coaxial m ultilayer core-shell production process is m elt spinning, solution electrospinning, printing or electrospraying.
Method according to Clai m 1, wherein said coaxial flow system comprises at least one f u rther flow path and respective f luid exit(s); and a respective further fluid phase immiscible with any fl u id adjacent thereto flows through each/said further fluid exit such that the further fluid circuniferentially surrounds the first fluid u pon leaving said further flow path.
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Thermally exfoliated graphene oxide at three concentrations (0.025%, 0.05%, 0.1% w/w) was dispersed in dimethylformamide by probe sonication. Polystyrene (20% w/w) was added as the polymeric matrix to form the second fluid. Atmospheric air (1 atm) was used as the first fluid. Coaxial electrospraying was performed at 16 kV with an 8 cm collector-to-syringe distance for the 0.05% graphene mixture, producing three-dimensional closed hollow graphene-based nano-/microstructures (hollow spheres). Polymethyl methacrylate and poly(styrene-co-methylmethacrylate) (1:1 w/w) were also tested as polymeric matrix materials successfully.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional closed graphene-based nano-/microstructure (hollow sphere)
Materials described outside the worked examples.
graphene oxide
microwave exfoliated graphite oxide
functionalized graphene
polyacrylonitrile
polyacrylonitrile based functionalized copolymers
polyglycidyl methacrylate
polyacrylamide
polyacrylic acid
conductive polymers
biopolymers
copolymers of polyacrylonitrile, polymethyl methacrylate, polyglycidyl methacrylate, polystyrene, polyacrylamide, polyacrylic acid
titanium dioxide
TiO₂
silicon dioxide
SiO₂
transition metal catalysts
transition metals, transition metal complexes and metal salts
Related documents with shared materials, methods, properties, or citations.
Chemically Modified Graphene
GRAPHENE STRUCTURE, METHOD FOR PRODUCING THE SAME, ELECTRONIC DEVICE ELEMENT AND ELECTRONIC DEVICE
GRAPHENE OXIDE-CERAMIC HYBRID COATING LAYER, AND METHOD FOR PREPARING THE SAME
Novel functions in silicon photonic chips incorporated with graphene oxide thin films
Graphene oxide two dimensional films for thermo-optic photonic integrated devices
Integrated microring resonator and waveguide polarizers based on partially photo-reduced 2D graphene oxide thin films
Waveguide optical parametric amplifiers in silicon nitride with 2D graphene oxide films
Integrated nanophotonic polarizers in silicon waveguides and ring resonators using graphene oxide 2D films
Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is schematic view of a coaxial flow system for application of the method according to the present invention by melt/solution core-shell spinning and spraying techniques. Detailed Description of the Invention 5 Referring now the figure outlined before, the present invention proposes …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A p roduction method for obtain m ent of three-di m ensional closed graphene-based nano-/m icrostructures u si n g a coaxial mui ltilayer core-shell production process comprising a coaxial flow system having a first flow path and a first fluid exit at an end of said first flow path; and a second flow path circumferentially surrounding said first flow path, said second flow path having a second fluid exit, wherein-a first fluid flows through the first flo w path and exits through the first f lu i d exit;-a second fluid which is immiscible with the first fluid under the conditions where said production method is conducted, flows through the second flow path and exits through the second fluid exit such that the second fluid circumferentially covers the first fluid upon leaving the coaxial flow system: said second fluid compr i ses a graphene- b ased material, a. polymeric material and solvent; and-said graphe ne -based material is one or more material selected f r om the list consisting of graphene oxide, microwave exfoliated graphite oxide, thermally exf o liated graphene oxide, and functionalized graphene; further wherein the first fl u id is a mixture comprising o n e or more substance selected fro m the list consisting of polystyrene, copolymers thereof, polyacrylonitrile, a nd polyacrylonitrile based functionalized copolymers; and the method further comprises a subsequent ste p of removal of said substance by ther m al treatment of the three- dimensional closed graphene-based nano-/mi crostructures.
(Pr e vio u sly Presented) Method according to the Claim 1, wherei n said polymeric material comprises one or more substance selected from t he list c onsist i ng of polyacrylonitrile, copolymers thereof, polymethyl methacrylate, polyglycidyl metha cry late. polystyrene, polyacrylamide, polyacrylic acid, copolymers of said polymers, conductive polymers, and biopolymers thereof.
Method according to the Claim 1. wherein the first fluid comprises one or more solvent which further comprises inorganic nanoparticles selected from a list consisting of titaniu m dioxide, silicon dioxide, and transition metal catal y sts.
Method according to the Claim 1, wherein said solve n t is selected from the list consisting of organic solvents, aqueous solutions, and mixtures thereof.
7. Method according to Claim 1, wherein the second fluid f u rther co m prises one or more catalyst selected from the list consisting of transition metals, transition metal complexes and m etal salts f o r providing catalytic activity to the three-dim ens i onal closed graphene- b ased nano-/m icrostructures in further uses thereof.
(Withdra wn) N ethod according to any of claims 1-- 4, wherein the first fluid is a mixture comprising a substance removable by thermal treatment, ans said. method further comprises a subsequent step of evacuation of the c o re (1 I) by thermal treatment of the three-dimensional closed g r aphene-based nano-/mi crostruct u res (1 0). withdrawn
. canceled
6.. canceled
Method according to c l aim 8, wher e in the substance removable by thermal treatment is removable polymeric material selected from the list of soluble thermoplastic homopolymers, soluble thermoplastic copolymers and mixtures thereof. withdrawn
Method according to claim 9, where i n said removable polymeric material is one or more substance selected from the list consisting of polystyrene, copolymers thereof. pol yacrylonitrile, and polyacrylonitrile based Fu nctiona liz ed copolymers. withdrawn
11. Method according to Clai m 1, w h erein said coaxial m ultilayer core-shell production process is m elt spinning, solution electrospinning, printing or electrospraying.
Method according to Clai m 1, wherein said coaxial flow system comprises at least one f u rther flow path and respective f luid exit(s); and a respective further fluid phase immiscible with any fl u id adjacent thereto flows through each/said further fluid exit such that the further fluid circuniferentially surrounds the first fluid u pon leaving said further flow path.
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Thermally exfoliated graphene oxide at three concentrations (0.025%, 0.05%, 0.1% w/w) was dispersed in dimethylformamide by probe sonication. Polystyrene (20% w/w) was added as the polymeric matrix to form the second fluid. Atmospheric air (1 atm) was used as the first fluid. Coaxial electrospraying was performed at 16 kV with an 8 cm collector-to-syringe distance for the 0.05% graphene mixture, producing three-dimensional closed hollow graphene-based nano-/microstructures (hollow spheres). Polymethyl methacrylate and poly(styrene-co-methylmethacrylate) (1:1 w/w) were also tested as polymeric matrix materials successfully.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional closed graphene-based nano-/microstructure (hollow sphere)
Materials described outside the worked examples.
graphene oxide
microwave exfoliated graphite oxide
functionalized graphene
polyacrylonitrile
polyacrylonitrile based functionalized copolymers
polyglycidyl methacrylate
polyacrylamide
polyacrylic acid
conductive polymers
biopolymers
copolymers of polyacrylonitrile, polymethyl methacrylate, polyglycidyl methacrylate, polystyrene, polyacrylamide, polyacrylic acid
titanium dioxide
TiO₂
silicon dioxide
SiO₂
transition metal catalysts
transition metals, transition metal complexes and metal salts
Related documents with shared materials, methods, properties, or citations.
Chemically Modified Graphene
GRAPHENE STRUCTURE, METHOD FOR PRODUCING THE SAME, ELECTRONIC DEVICE ELEMENT AND ELECTRONIC DEVICE
GRAPHENE OXIDE-CERAMIC HYBRID COATING LAYER, AND METHOD FOR PREPARING THE SAME
Novel functions in silicon photonic chips incorporated with graphene oxide thin films
Graphene oxide two dimensional films for thermo-optic photonic integrated devices
Integrated microring resonator and waveguide polarizers based on partially photo-reduced 2D graphene oxide thin films
Waveguide optical parametric amplifiers in silicon nitride with 2D graphene oxide films
Integrated nanophotonic polarizers in silicon waveguides and ring resonators using graphene oxide 2D films
Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is schematic view of a coaxial flow system for application of the method according to the present invention by melt/solution core-shell spinning and spraying techniques. Detailed Description of the Invention 5 Referring now the figure outlined before, the present invention proposes …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A p roduction method for obtain m ent of three-di m ensional closed graphene-based nano-/m icrostructures u si n g a coaxial mui ltilayer core-shell production process comprising a coaxial flow system having a first flow path and a first fluid exit at an end of said first flow path; and a second flow path circumferentially surrounding said first flow path, said second flow path having a second fluid exit, wherein-a first fluid flows through the first flo w path and exits through the first f lu i d exit;-a second fluid which is immiscible with the first fluid under the conditions where said production method is conducted, flows through the second flow path and exits through the second fluid exit such that the second fluid circumferentially covers the first fluid upon leaving the coaxial flow system: said second fluid compr i ses a graphene- b ased material, a. polymeric material and solvent; and-said graphe ne -based material is one or more material selected f r om the list consisting of graphene oxide, microwave exfoliated graphite oxide, thermally exf o liated graphene oxide, and functionalized graphene; further wherein the first fl u id is a mixture comprising o n e or more substance selected fro m the list consisting of polystyrene, copolymers thereof, polyacrylonitrile, a nd polyacrylonitrile based functionalized copolymers; and the method further comprises a subsequent ste p of removal of said substance by ther m al treatment of the three- dimensional closed graphene-based nano-/mi crostructures.
(Pr e vio u sly Presented) Method according to the Claim 1, wherei n said polymeric material comprises one or more substance selected from t he list c onsist i ng of polyacrylonitrile, copolymers thereof, polymethyl methacrylate, polyglycidyl metha cry late. polystyrene, polyacrylamide, polyacrylic acid, copolymers of said polymers, conductive polymers, and biopolymers thereof.
Method according to the Claim 1. wherein the first fluid comprises one or more solvent which further comprises inorganic nanoparticles selected from a list consisting of titaniu m dioxide, silicon dioxide, and transition metal catal y sts.
Method according to the Claim 1, wherein said solve n t is selected from the list consisting of organic solvents, aqueous solutions, and mixtures thereof.
7. Method according to Claim 1, wherein the second fluid f u rther co m prises one or more catalyst selected from the list consisting of transition metals, transition metal complexes and m etal salts f o r providing catalytic activity to the three-dim ens i onal closed graphene- b ased nano-/m icrostructures in further uses thereof.
(Withdra wn) N ethod according to any of claims 1-- 4, wherein the first fluid is a mixture comprising a substance removable by thermal treatment, ans said. method further comprises a subsequent step of evacuation of the c o re (1 I) by thermal treatment of the three-dimensional closed g r aphene-based nano-/mi crostruct u res (1 0). withdrawn
. canceled
6.. canceled
Method according to c l aim 8, wher e in the substance removable by thermal treatment is removable polymeric material selected from the list of soluble thermoplastic homopolymers, soluble thermoplastic copolymers and mixtures thereof. withdrawn
Method according to claim 9, where i n said removable polymeric material is one or more substance selected from the list consisting of polystyrene, copolymers thereof. pol yacrylonitrile, and polyacrylonitrile based Fu nctiona liz ed copolymers. withdrawn
11. Method according to Clai m 1, w h erein said coaxial m ultilayer core-shell production process is m elt spinning, solution electrospinning, printing or electrospraying.
Method according to Clai m 1, wherein said coaxial flow system comprises at least one f u rther flow path and respective f luid exit(s); and a respective further fluid phase immiscible with any fl u id adjacent thereto flows through each/said further fluid exit such that the further fluid circuniferentially surrounds the first fluid u pon leaving said further flow path.
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Thermally exfoliated graphene oxide at three concentrations (0.025%, 0.05%, 0.1% w/w) was dispersed in dimethylformamide by probe sonication. Polystyrene (20% w/w) was added as the polymeric matrix to form the second fluid. Atmospheric air (1 atm) was used as the first fluid. Coaxial electrospraying was performed at 16 kV with an 8 cm collector-to-syringe distance for the 0.05% graphene mixture, producing three-dimensional closed hollow graphene-based nano-/microstructures (hollow spheres). Polymethyl methacrylate and poly(styrene-co-methylmethacrylate) (1:1 w/w) were also tested as polymeric matrix materials successfully.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional closed graphene-based nano-/microstructure (hollow sphere)
Materials described outside the worked examples.
graphene oxide
microwave exfoliated graphite oxide
functionalized graphene
polyacrylonitrile
polyacrylonitrile based functionalized copolymers
polyglycidyl methacrylate
polyacrylamide
polyacrylic acid
conductive polymers
biopolymers
copolymers of polyacrylonitrile, polymethyl methacrylate, polyglycidyl methacrylate, polystyrene, polyacrylamide, polyacrylic acid
titanium dioxide
TiO₂
silicon dioxide
SiO₂
transition metal catalysts
transition metals, transition metal complexes and metal salts
Related documents with shared materials, methods, properties, or citations.
Chemically Modified Graphene
GRAPHENE STRUCTURE, METHOD FOR PRODUCING THE SAME, ELECTRONIC DEVICE ELEMENT AND ELECTRONIC DEVICE
GRAPHENE OXIDE-CERAMIC HYBRID COATING LAYER, AND METHOD FOR PREPARING THE SAME
Novel functions in silicon photonic chips incorporated with graphene oxide thin films
Graphene oxide two dimensional films for thermo-optic photonic integrated devices
Integrated microring resonator and waveguide polarizers based on partially photo-reduced 2D graphene oxide thin films
Waveguide optical parametric amplifiers in silicon nitride with 2D graphene oxide films
Integrated nanophotonic polarizers in silicon waveguides and ring resonators using graphene oxide 2D films
Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is schematic view of a coaxial flow system for application of the method according to the present invention by melt/solution core-shell spinning and spraying techniques. Detailed Description of the Invention 5 Referring now the figure outlined before, the present invention proposes …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A p roduction method for obtain m ent of three-di m ensional closed graphene-based nano-/m icrostructures u si n g a coaxial mui ltilayer core-shell production process comprising a coaxial flow system having a first flow path and a first fluid exit at an end of said first flow path; and a second flow path circumferentially surrounding said first flow path, said second flow path having a second fluid exit, wherein-a first fluid flows through the first flo w path and exits through the first f lu i d exit;-a second fluid which is immiscible with the first fluid under the conditions where said production method is conducted, flows through the second flow path and exits through the second fluid exit such that the second fluid circumferentially covers the first fluid upon leaving the coaxial flow system: said second fluid compr i ses a graphene- b ased material, a. polymeric material and solvent; and-said graphe ne -based material is one or more material selected f r om the list consisting of graphene oxide, microwave exfoliated graphite oxide, thermally exf o liated graphene oxide, and functionalized graphene; further wherein the first fl u id is a mixture comprising o n e or more substance selected fro m the list consisting of polystyrene, copolymers thereof, polyacrylonitrile, a nd polyacrylonitrile based functionalized copolymers; and the method further comprises a subsequent ste p of removal of said substance by ther m al treatment of the three- dimensional closed graphene-based nano-/mi crostructures.
(Pr e vio u sly Presented) Method according to the Claim 1, wherei n said polymeric material comprises one or more substance selected from t he list c onsist i ng of polyacrylonitrile, copolymers thereof, polymethyl methacrylate, polyglycidyl metha cry late. polystyrene, polyacrylamide, polyacrylic acid, copolymers of said polymers, conductive polymers, and biopolymers thereof.
Method according to the Claim 1. wherein the first fluid comprises one or more solvent which further comprises inorganic nanoparticles selected from a list consisting of titaniu m dioxide, silicon dioxide, and transition metal catal y sts.
Method according to the Claim 1, wherein said solve n t is selected from the list consisting of organic solvents, aqueous solutions, and mixtures thereof.
7. Method according to Claim 1, wherein the second fluid f u rther co m prises one or more catalyst selected from the list consisting of transition metals, transition metal complexes and m etal salts f o r providing catalytic activity to the three-dim ens i onal closed graphene- b ased nano-/m icrostructures in further uses thereof.
(Withdra wn) N ethod according to any of claims 1-- 4, wherein the first fluid is a mixture comprising a substance removable by thermal treatment, ans said. method further comprises a subsequent step of evacuation of the c o re (1 I) by thermal treatment of the three-dimensional closed g r aphene-based nano-/mi crostruct u res (1 0). withdrawn
. canceled
6.. canceled
Method according to c l aim 8, wher e in the substance removable by thermal treatment is removable polymeric material selected from the list of soluble thermoplastic homopolymers, soluble thermoplastic copolymers and mixtures thereof. withdrawn
Method according to claim 9, where i n said removable polymeric material is one or more substance selected from the list consisting of polystyrene, copolymers thereof. pol yacrylonitrile, and polyacrylonitrile based Fu nctiona liz ed copolymers. withdrawn
11. Method according to Clai m 1, w h erein said coaxial m ultilayer core-shell production process is m elt spinning, solution electrospinning, printing or electrospraying.
Method according to Clai m 1, wherein said coaxial flow system comprises at least one f u rther flow path and respective f luid exit(s); and a respective further fluid phase immiscible with any fl u id adjacent thereto flows through each/said further fluid exit such that the further fluid circuniferentially surrounds the first fluid u pon leaving said further flow path.
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Thermally exfoliated graphene oxide at three concentrations (0.025%, 0.05%, 0.1% w/w) was dispersed in dimethylformamide by probe sonication. Polystyrene (20% w/w) was added as the polymeric matrix to form the second fluid. Atmospheric air (1 atm) was used as the first fluid. Coaxial electrospraying was performed at 16 kV with an 8 cm collector-to-syringe distance for the 0.05% graphene mixture, producing three-dimensional closed hollow graphene-based nano-/microstructures (hollow spheres). Polymethyl methacrylate and poly(styrene-co-methylmethacrylate) (1:1 w/w) were also tested as polymeric matrix materials successfully.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional closed graphene-based nano-/microstructure (hollow sphere)
Materials described outside the worked examples.
graphene oxide
microwave exfoliated graphite oxide
functionalized graphene
polyacrylonitrile
polyacrylonitrile based functionalized copolymers
polyglycidyl methacrylate
polyacrylamide
polyacrylic acid
conductive polymers
biopolymers
copolymers of polyacrylonitrile, polymethyl methacrylate, polyglycidyl methacrylate, polystyrene, polyacrylamide, polyacrylic acid
titanium dioxide
TiO₂
silicon dioxide
SiO₂
transition metal catalysts
transition metals, transition metal complexes and metal salts
Related documents with shared materials, methods, properties, or citations.
Chemically Modified Graphene
GRAPHENE STRUCTURE, METHOD FOR PRODUCING THE SAME, ELECTRONIC DEVICE ELEMENT AND ELECTRONIC DEVICE
GRAPHENE OXIDE-CERAMIC HYBRID COATING LAYER, AND METHOD FOR PREPARING THE SAME
Novel functions in silicon photonic chips incorporated with graphene oxide thin films
Graphene oxide two dimensional films for thermo-optic photonic integrated devices
Integrated microring resonator and waveguide polarizers based on partially photo-reduced 2D graphene oxide thin films
Waveguide optical parametric amplifiers in silicon nitride with 2D graphene oxide films
Integrated nanophotonic polarizers in silicon waveguides and ring resonators using graphene oxide 2D films