Patent
US 11,029,271AMMONIA GAS DETECTING SENSOR USING GRAPHENE DOPED WITH COPPER OXIDE NANOPARTICLES AND AMMONIA GAS DETECTING DEVICE COMPRISING THE SAME
Kang Bong LEE
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 11,029,271Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic conceptual diagram showing a configuration of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 2 is a schematic conceptual diagram showing a response process of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 3 is a schematic conceptual diagram showing a method for manufacturing an ammonia gas detection sensor according to an embodiment of the present …
FIG. 4D show properties of copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 5 C are Raman spectrums of a graphene sheet doped with copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 6 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reactivity of 1 wt% to 2 wt% CuO …
FIG. 7 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 8 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 9 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 10 E are XPS graphs showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the observations of the binding …
FIG. 11 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the responses of ammonia gas responsive …
FIG. 12 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reproducibility of an ammonia gas …
FIG. 13B are a graph and a quantitative graph showing responsivity as a function of ammonia gas concentration using an ammonia detection device according to an …
FIG. 14 is a graph showing selectivity through a comparison of responsivity to ammonia gas and other gases using an ammonia gas detection device according to …
FIG. 15 is a block diagram of a device for ammonia gas detection and a photographic image of a device manufactured based on it.
FIG. 16 is a brief illustration of a conventional gas detection sensor.
FIG. 17 is a brief illustration of another conventional gas detection sensor.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ammonia gas detection sensor, comprising: a substrate; a graphene sheet disposed on the substrate; and metal nanoparticles disposed on the graphene sheet; wherein the r aphene sheet is a monola ver and wherein the metal nanoparticles include copper oxide (I) (Cu O) nanoparticles having a size of 10 nm to 20 n m; wherein the Cu O nanoparticles are formed by doping a mixed solution including CuO nanoparticles onto the 2 raphene sheet; and wherein the mixed solution includes 1 wt % to 2 wt % of the Cu O nanoparticles based on the total weight. Currently amended
The ammonia gas detection sensor according to claim 1, wherein the ammonia gas is a gaseous ammonia gas. Original
An ammonia gas detection device, comprising: the ammonia gas detection sensor according to claim 1; electrodes connected to two ends of the graphene sheet; and a power supply unit which operates the ammonia gas detection sensor. Original
The ammonia gas detection sensor according to claim 1, wherein the mixed solution is aqueous. New
Canceled
Canceled
The ammonia gas detection sensor according to claim [[4,]] t wherein the graphene sheet is deposited on the substrate by a chemical vapor deposition method. Currently amended
Canceled
Canceled
The ammonia gas detection sensor according to claim [[7,]] L wherein the doping includes dipping the graphene sheet in the mixed solution and stirring the mixed solution by rotation at 1000 rpm to 2000 rpm. Currently amended
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
ammonia gas detection sensor
ammonia gas detection device
Materials described outside the worked examples.
monolayer graphene sheet
copper oxide (I) nanoparticles
Cu₂O
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–80 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,029,271Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic conceptual diagram showing a configuration of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 2 is a schematic conceptual diagram showing a response process of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 3 is a schematic conceptual diagram showing a method for manufacturing an ammonia gas detection sensor according to an embodiment of the present …
FIG. 4D show properties of copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 5 C are Raman spectrums of a graphene sheet doped with copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 6 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reactivity of 1 wt% to 2 wt% CuO …
FIG. 7 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 8 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 9 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 10 E are XPS graphs showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the observations of the binding …
FIG. 11 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the responses of ammonia gas responsive …
FIG. 12 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reproducibility of an ammonia gas …
FIG. 13B are a graph and a quantitative graph showing responsivity as a function of ammonia gas concentration using an ammonia detection device according to an …
FIG. 14 is a graph showing selectivity through a comparison of responsivity to ammonia gas and other gases using an ammonia gas detection device according to …
FIG. 15 is a block diagram of a device for ammonia gas detection and a photographic image of a device manufactured based on it.
FIG. 16 is a brief illustration of a conventional gas detection sensor.
FIG. 17 is a brief illustration of another conventional gas detection sensor.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ammonia gas detection sensor, comprising: a substrate; a graphene sheet disposed on the substrate; and metal nanoparticles disposed on the graphene sheet; wherein the r aphene sheet is a monola ver and wherein the metal nanoparticles include copper oxide (I) (Cu O) nanoparticles having a size of 10 nm to 20 n m; wherein the Cu O nanoparticles are formed by doping a mixed solution including CuO nanoparticles onto the 2 raphene sheet; and wherein the mixed solution includes 1 wt % to 2 wt % of the Cu O nanoparticles based on the total weight. Currently amended
The ammonia gas detection sensor according to claim 1, wherein the ammonia gas is a gaseous ammonia gas. Original
An ammonia gas detection device, comprising: the ammonia gas detection sensor according to claim 1; electrodes connected to two ends of the graphene sheet; and a power supply unit which operates the ammonia gas detection sensor. Original
The ammonia gas detection sensor according to claim 1, wherein the mixed solution is aqueous. New
Canceled
Canceled
The ammonia gas detection sensor according to claim [[4,]] t wherein the graphene sheet is deposited on the substrate by a chemical vapor deposition method. Currently amended
Canceled
Canceled
The ammonia gas detection sensor according to claim [[7,]] L wherein the doping includes dipping the graphene sheet in the mixed solution and stirring the mixed solution by rotation at 1000 rpm to 2000 rpm. Currently amended
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
ammonia gas detection sensor
ammonia gas detection device
Materials described outside the worked examples.
monolayer graphene sheet
copper oxide (I) nanoparticles
Cu₂O
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–80 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,029,271Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic conceptual diagram showing a configuration of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 2 is a schematic conceptual diagram showing a response process of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 3 is a schematic conceptual diagram showing a method for manufacturing an ammonia gas detection sensor according to an embodiment of the present …
FIG. 4D show properties of copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 5 C are Raman spectrums of a graphene sheet doped with copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 6 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reactivity of 1 wt% to 2 wt% CuO …
FIG. 7 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 8 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 9 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 10 E are XPS graphs showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the observations of the binding …
FIG. 11 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the responses of ammonia gas responsive …
FIG. 12 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reproducibility of an ammonia gas …
FIG. 13B are a graph and a quantitative graph showing responsivity as a function of ammonia gas concentration using an ammonia detection device according to an …
FIG. 14 is a graph showing selectivity through a comparison of responsivity to ammonia gas and other gases using an ammonia gas detection device according to …
FIG. 15 is a block diagram of a device for ammonia gas detection and a photographic image of a device manufactured based on it.
FIG. 16 is a brief illustration of a conventional gas detection sensor.
FIG. 17 is a brief illustration of another conventional gas detection sensor.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ammonia gas detection sensor, comprising: a substrate; a graphene sheet disposed on the substrate; and metal nanoparticles disposed on the graphene sheet; wherein the r aphene sheet is a monola ver and wherein the metal nanoparticles include copper oxide (I) (Cu O) nanoparticles having a size of 10 nm to 20 n m; wherein the Cu O nanoparticles are formed by doping a mixed solution including CuO nanoparticles onto the 2 raphene sheet; and wherein the mixed solution includes 1 wt % to 2 wt % of the Cu O nanoparticles based on the total weight. Currently amended
The ammonia gas detection sensor according to claim 1, wherein the ammonia gas is a gaseous ammonia gas. Original
An ammonia gas detection device, comprising: the ammonia gas detection sensor according to claim 1; electrodes connected to two ends of the graphene sheet; and a power supply unit which operates the ammonia gas detection sensor. Original
The ammonia gas detection sensor according to claim 1, wherein the mixed solution is aqueous. New
Canceled
Canceled
The ammonia gas detection sensor according to claim [[4,]] t wherein the graphene sheet is deposited on the substrate by a chemical vapor deposition method. Currently amended
Canceled
Canceled
The ammonia gas detection sensor according to claim [[7,]] L wherein the doping includes dipping the graphene sheet in the mixed solution and stirring the mixed solution by rotation at 1000 rpm to 2000 rpm. Currently amended
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
ammonia gas detection sensor
ammonia gas detection device
Materials described outside the worked examples.
monolayer graphene sheet
copper oxide (I) nanoparticles
Cu₂O
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–80 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,029,271Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic conceptual diagram showing a configuration of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 2 is a schematic conceptual diagram showing a response process of an ammonia gas detection sensor according to an embodiment of the present disclosure.
FIG. 3 is a schematic conceptual diagram showing a method for manufacturing an ammonia gas detection sensor according to an embodiment of the present …
FIG. 4D show properties of copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 5 C are Raman spectrums of a graphene sheet doped with copper oxide nanoparticles according to an embodiment of the present disclosure.
FIG. 6 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reactivity of 1 wt% to 2 wt% CuO …
FIG. 7 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 8 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 9 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the ammonia gas detection responsivity as a …
FIG. 10 E are XPS graphs showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the observations of the binding …
FIG. 11 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the responses of ammonia gas responsive …
FIG. 12 is a graph showing, in an ammonia gas detection sensor according to an embodiment of the present disclosure, the reproducibility of an ammonia gas …
FIG. 13B are a graph and a quantitative graph showing responsivity as a function of ammonia gas concentration using an ammonia detection device according to an …
FIG. 14 is a graph showing selectivity through a comparison of responsivity to ammonia gas and other gases using an ammonia gas detection device according to …
FIG. 15 is a block diagram of a device for ammonia gas detection and a photographic image of a device manufactured based on it.
FIG. 16 is a brief illustration of a conventional gas detection sensor.
FIG. 17 is a brief illustration of another conventional gas detection sensor.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ammonia gas detection sensor, comprising: a substrate; a graphene sheet disposed on the substrate; and metal nanoparticles disposed on the graphene sheet; wherein the r aphene sheet is a monola ver and wherein the metal nanoparticles include copper oxide (I) (Cu O) nanoparticles having a size of 10 nm to 20 n m; wherein the Cu O nanoparticles are formed by doping a mixed solution including CuO nanoparticles onto the 2 raphene sheet; and wherein the mixed solution includes 1 wt % to 2 wt % of the Cu O nanoparticles based on the total weight. Currently amended
The ammonia gas detection sensor according to claim 1, wherein the ammonia gas is a gaseous ammonia gas. Original
An ammonia gas detection device, comprising: the ammonia gas detection sensor according to claim 1; electrodes connected to two ends of the graphene sheet; and a power supply unit which operates the ammonia gas detection sensor. Original
The ammonia gas detection sensor according to claim 1, wherein the mixed solution is aqueous. New
Canceled
Canceled
The ammonia gas detection sensor according to claim [[4,]] t wherein the graphene sheet is deposited on the substrate by a chemical vapor deposition method. Currently amended
Canceled
Canceled
The ammonia gas detection sensor according to claim [[7,]] L wherein the doping includes dipping the graphene sheet in the mixed solution and stirring the mixed solution by rotation at 1000 rpm to 2000 rpm. Currently amended
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
ammonia gas detection sensor
ammonia gas detection device
Materials described outside the worked examples.
monolayer graphene sheet
copper oxide (I) nanoparticles
Cu₂O
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–80 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
CuO nanoparticles (spin coating precursor)
CuO
Si/SiO₂ substrate
silver electrodes
Ag
| 10–20 nm |
| — |
Thickness | 1300–3000 cm | — |
Thickness | 20–50 nm | — |
Thickness | 50–80 nm | — |
ENHANCED SENSITIVITY OF GRAPHENE GAS SENSORS USING MOLECULAR DOPING
CuO nanoparticles (spin coating precursor)
CuO
Si/SiO₂ substrate
silver electrodes
Ag
| 10–20 nm |
| — |
Thickness | 1300–3000 cm | — |
Thickness | 20–50 nm | — |
Thickness | 50–80 nm | — |
ENHANCED SENSITIVITY OF GRAPHENE GAS SENSORS USING MOLECULAR DOPING
CuO nanoparticles (spin coating precursor)
CuO
Si/SiO₂ substrate
silver electrodes
Ag
| 10–20 nm |
| — |
Thickness | 1300–3000 cm | — |
Thickness | 20–50 nm | — |
Thickness | 50–80 nm | — |
ENHANCED SENSITIVITY OF GRAPHENE GAS SENSORS USING MOLECULAR DOPING
CuO nanoparticles (spin coating precursor)
CuO
Si/SiO₂ substrate
silver electrodes
Ag
| 10–20 nm |
| — |
Thickness | 1300–3000 cm | — |
Thickness | 20–50 nm | — |
Thickness | 50–80 nm | — |