Patent
US 10,702,857MONATOMIC METAL-DOPED FEW-LAYER MOLYBDENUM DISULFIDE ELECTROCATALYTIC MATERIAL, PREPARING METHOD THEREOF, AND METHOD FOR ELECTROCATALYTIC NITROGEN FIXATION
Lizhi ZHANG
US
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Patent
Atlas literature
Patent
US 10,702,857Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(ori g inal) A monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material, which has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale, and wherein the doping metal in the mo n ato m ic metal-doped few-layer molybdenum disulfide e lectrocatalyti c material is dispersed in a form of single atoms. Original
The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is for non-substitute doping, and the few-layer ultra-thin and irregular flake has a length and width of 50-200 nm, a thickness of 0.5-3 nm and 1-4 layers on average. Original
The monatomic metal-doped f e w-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal comprises iron, ruthenium, platinum, palladium, and lanthanum, and a doped amount is 0.2 % -3%. Original
A method for preparing the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, comprising the following steps: 1) performing an ultrasonic process to flower-ball-shaped molybdenum disulfide to carry out an exfoliation, to obtain a few-layer molybdenum disulfide solution; 2) adding a nitrate hydrate of the metal to be doped to the few-layer molybdenum disulfide solution, mixing the few-layer molybdenum disulfide solution and the nitrate hydrate fully and unifo rm ly by stir r ing, hydrothermally reacting for 10-12 h at 180-220 ° C, naturally cooling a reactor to room temperature after the reaction is completed, carrying out a post- treatment, and collecting a reaction product; and 3) ultrasonicating, centrifuging, and drying the reaction product to obtain a monatomic metal-doped few-layer molybdenum disulfide. Original
Canceled
[[The]] A method of using the monatomic metal-doped few- layer molybdenum disulfide electrocatalytic material according to claim [[7]] 1, comprising: in an electrolytic cell comprising an anode tank and a cathode tank separated by a proton exchange membrane, using a monatomic metal-doped few-layer molybdenum disulfide ele c trocatalytic material electrode as a working electrode, using a platinum plate as an auxiliary electrode, and using a saturated calomel electrode as a reference electrode; respectively charging an anolyte solution and a catholyte solution to the electrolytic cells of the anode tank and the cathode tank; introducin g N 2 into the cathode tank until saturation; and then reducing the N 2 at a constant potential of -0.36-0.04 V while introducing the N 2 continuously. Currently amended
The method according to claim [[7]] 8 wherein [[an]]the anolyte solution is a 0.05-0.2 M potassium sulfate solution, and [[a]l the catholyte solution is a 0.05-0.2 M potassium chloride solution. Currently amended
The method according to claim [[7]] 8, wherein a load of the ele c trocatalytic material in the monatomic metal-doped few-layer molybdenum disulfi de electrocatalytic material electrode is 1-2 mg/cm 2. Currently amended
Embodiments described in the patent, grouped by the materials and process steps they use.
1 material
TEM imaging of iron-doped few-layer molybdenum disulfide is referenced (Figs. 3a, 3b, 3c). The full example text was truncated in the provided document.
Layer stacks claimed or described, ordered top of device to substrate.
electrolytic cell for electrocatalytic nitrogen fixation
monatomic metal-doped few-layer molybdenum disulfide/glassy carbon electrode
Materials described outside the worked examples.
monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material
iron
Fe
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Faradaic Efficiency | 18 % | lanthanum-doped few-layer molybdenum disulfide |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,702,857Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(ori g inal) A monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material, which has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale, and wherein the doping metal in the mo n ato m ic metal-doped few-layer molybdenum disulfide e lectrocatalyti c material is dispersed in a form of single atoms. Original
The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is for non-substitute doping, and the few-layer ultra-thin and irregular flake has a length and width of 50-200 nm, a thickness of 0.5-3 nm and 1-4 layers on average. Original
The monatomic metal-doped f e w-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal comprises iron, ruthenium, platinum, palladium, and lanthanum, and a doped amount is 0.2 % -3%. Original
A method for preparing the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, comprising the following steps: 1) performing an ultrasonic process to flower-ball-shaped molybdenum disulfide to carry out an exfoliation, to obtain a few-layer molybdenum disulfide solution; 2) adding a nitrate hydrate of the metal to be doped to the few-layer molybdenum disulfide solution, mixing the few-layer molybdenum disulfide solution and the nitrate hydrate fully and unifo rm ly by stir r ing, hydrothermally reacting for 10-12 h at 180-220 ° C, naturally cooling a reactor to room temperature after the reaction is completed, carrying out a post- treatment, and collecting a reaction product; and 3) ultrasonicating, centrifuging, and drying the reaction product to obtain a monatomic metal-doped few-layer molybdenum disulfide. Original
Canceled
[[The]] A method of using the monatomic metal-doped few- layer molybdenum disulfide electrocatalytic material according to claim [[7]] 1, comprising: in an electrolytic cell comprising an anode tank and a cathode tank separated by a proton exchange membrane, using a monatomic metal-doped few-layer molybdenum disulfide ele c trocatalytic material electrode as a working electrode, using a platinum plate as an auxiliary electrode, and using a saturated calomel electrode as a reference electrode; respectively charging an anolyte solution and a catholyte solution to the electrolytic cells of the anode tank and the cathode tank; introducin g N 2 into the cathode tank until saturation; and then reducing the N 2 at a constant potential of -0.36-0.04 V while introducing the N 2 continuously. Currently amended
The method according to claim [[7]] 8 wherein [[an]]the anolyte solution is a 0.05-0.2 M potassium sulfate solution, and [[a]l the catholyte solution is a 0.05-0.2 M potassium chloride solution. Currently amended
The method according to claim [[7]] 8, wherein a load of the ele c trocatalytic material in the monatomic metal-doped few-layer molybdenum disulfi de electrocatalytic material electrode is 1-2 mg/cm 2. Currently amended
Embodiments described in the patent, grouped by the materials and process steps they use.
1 material
TEM imaging of iron-doped few-layer molybdenum disulfide is referenced (Figs. 3a, 3b, 3c). The full example text was truncated in the provided document.
Layer stacks claimed or described, ordered top of device to substrate.
electrolytic cell for electrocatalytic nitrogen fixation
monatomic metal-doped few-layer molybdenum disulfide/glassy carbon electrode
Materials described outside the worked examples.
monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material
iron
Fe
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Faradaic Efficiency | 18 % | lanthanum-doped few-layer molybdenum disulfide |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,702,857Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(ori g inal) A monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material, which has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale, and wherein the doping metal in the mo n ato m ic metal-doped few-layer molybdenum disulfide e lectrocatalyti c material is dispersed in a form of single atoms. Original
The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is for non-substitute doping, and the few-layer ultra-thin and irregular flake has a length and width of 50-200 nm, a thickness of 0.5-3 nm and 1-4 layers on average. Original
The monatomic metal-doped f e w-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal comprises iron, ruthenium, platinum, palladium, and lanthanum, and a doped amount is 0.2 % -3%. Original
A method for preparing the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, comprising the following steps: 1) performing an ultrasonic process to flower-ball-shaped molybdenum disulfide to carry out an exfoliation, to obtain a few-layer molybdenum disulfide solution; 2) adding a nitrate hydrate of the metal to be doped to the few-layer molybdenum disulfide solution, mixing the few-layer molybdenum disulfide solution and the nitrate hydrate fully and unifo rm ly by stir r ing, hydrothermally reacting for 10-12 h at 180-220 ° C, naturally cooling a reactor to room temperature after the reaction is completed, carrying out a post- treatment, and collecting a reaction product; and 3) ultrasonicating, centrifuging, and drying the reaction product to obtain a monatomic metal-doped few-layer molybdenum disulfide. Original
Canceled
[[The]] A method of using the monatomic metal-doped few- layer molybdenum disulfide electrocatalytic material according to claim [[7]] 1, comprising: in an electrolytic cell comprising an anode tank and a cathode tank separated by a proton exchange membrane, using a monatomic metal-doped few-layer molybdenum disulfide ele c trocatalytic material electrode as a working electrode, using a platinum plate as an auxiliary electrode, and using a saturated calomel electrode as a reference electrode; respectively charging an anolyte solution and a catholyte solution to the electrolytic cells of the anode tank and the cathode tank; introducin g N 2 into the cathode tank until saturation; and then reducing the N 2 at a constant potential of -0.36-0.04 V while introducing the N 2 continuously. Currently amended
The method according to claim [[7]] 8 wherein [[an]]the anolyte solution is a 0.05-0.2 M potassium sulfate solution, and [[a]l the catholyte solution is a 0.05-0.2 M potassium chloride solution. Currently amended
The method according to claim [[7]] 8, wherein a load of the ele c trocatalytic material in the monatomic metal-doped few-layer molybdenum disulfi de electrocatalytic material electrode is 1-2 mg/cm 2. Currently amended
Embodiments described in the patent, grouped by the materials and process steps they use.
1 material
TEM imaging of iron-doped few-layer molybdenum disulfide is referenced (Figs. 3a, 3b, 3c). The full example text was truncated in the provided document.
Layer stacks claimed or described, ordered top of device to substrate.
electrolytic cell for electrocatalytic nitrogen fixation
monatomic metal-doped few-layer molybdenum disulfide/glassy carbon electrode
Materials described outside the worked examples.
monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material
iron
Fe
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Faradaic Efficiency | 18 % | lanthanum-doped few-layer molybdenum disulfide |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,702,857Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(ori g inal) A monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material, which has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale, and wherein the doping metal in the mo n ato m ic metal-doped few-layer molybdenum disulfide e lectrocatalyti c material is dispersed in a form of single atoms. Original
The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is for non-substitute doping, and the few-layer ultra-thin and irregular flake has a length and width of 50-200 nm, a thickness of 0.5-3 nm and 1-4 layers on average. Original
The monatomic metal-doped f e w-layer molybdenum disulfide electrocatalytic material according to claim 1, wherein the monatomic metal comprises iron, ruthenium, platinum, palladium, and lanthanum, and a doped amount is 0.2 % -3%. Original
A method for preparing the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1, comprising the following steps: 1) performing an ultrasonic process to flower-ball-shaped molybdenum disulfide to carry out an exfoliation, to obtain a few-layer molybdenum disulfide solution; 2) adding a nitrate hydrate of the metal to be doped to the few-layer molybdenum disulfide solution, mixing the few-layer molybdenum disulfide solution and the nitrate hydrate fully and unifo rm ly by stir r ing, hydrothermally reacting for 10-12 h at 180-220 ° C, naturally cooling a reactor to room temperature after the reaction is completed, carrying out a post- treatment, and collecting a reaction product; and 3) ultrasonicating, centrifuging, and drying the reaction product to obtain a monatomic metal-doped few-layer molybdenum disulfide. Original
Canceled
[[The]] A method of using the monatomic metal-doped few- layer molybdenum disulfide electrocatalytic material according to claim [[7]] 1, comprising: in an electrolytic cell comprising an anode tank and a cathode tank separated by a proton exchange membrane, using a monatomic metal-doped few-layer molybdenum disulfide ele c trocatalytic material electrode as a working electrode, using a platinum plate as an auxiliary electrode, and using a saturated calomel electrode as a reference electrode; respectively charging an anolyte solution and a catholyte solution to the electrolytic cells of the anode tank and the cathode tank; introducin g N 2 into the cathode tank until saturation; and then reducing the N 2 at a constant potential of -0.36-0.04 V while introducing the N 2 continuously. Currently amended
The method according to claim [[7]] 8 wherein [[an]]the anolyte solution is a 0.05-0.2 M potassium sulfate solution, and [[a]l the catholyte solution is a 0.05-0.2 M potassium chloride solution. Currently amended
The method according to claim [[7]] 8, wherein a load of the ele c trocatalytic material in the monatomic metal-doped few-layer molybdenum disulfi de electrocatalytic material electrode is 1-2 mg/cm 2. Currently amended
Embodiments described in the patent, grouped by the materials and process steps they use.
1 material
TEM imaging of iron-doped few-layer molybdenum disulfide is referenced (Figs. 3a, 3b, 3c). The full example text was truncated in the provided document.
Layer stacks claimed or described, ordered top of device to substrate.
electrolytic cell for electrocatalytic nitrogen fixation
monatomic metal-doped few-layer molybdenum disulfide/glassy carbon electrode
Materials described outside the worked examples.
monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material
iron
Fe
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Faradaic Efficiency | 18 % | lanthanum-doped few-layer molybdenum disulfide |
Related documents with shared materials, methods, properties, or citations.
ruthenium
Ru
platinum
Pt
palladium
Pd
lanthanum
La
potassium sulfate solution
K₂SO₄
potassium chloride solution
KCl
lanthanum-doped few-layer molybdenum disulfide
flower-ball-shaped molybdenum disulfide
MoS₂
ammonium molybdate tetrahydrate
(NH₄)6Mo₇O24·4H₂O
thiourea
CH₄N₂S
Nafion
isopropanol
C₃H₈O
Thickness |
| 0.5–3 nm |
| — |
Voltage | 0.36- 0.04 V | — |
Thickness | 50–200 nm | — |
Temperature | 180–220 °C | — |
Temperature | 80–220 °C | — |
ruthenium
Ru
platinum
Pt
palladium
Pd
lanthanum
La
potassium sulfate solution
K₂SO₄
potassium chloride solution
KCl
lanthanum-doped few-layer molybdenum disulfide
flower-ball-shaped molybdenum disulfide
MoS₂
ammonium molybdate tetrahydrate
(NH₄)6Mo₇O24·4H₂O
thiourea
CH₄N₂S
Nafion
isopropanol
C₃H₈O
Thickness |
| 0.5–3 nm |
| — |
Voltage | 0.36- 0.04 V | — |
Thickness | 50–200 nm | — |
Temperature | 180–220 °C | — |
Temperature | 80–220 °C | — |
ruthenium
Ru
platinum
Pt
palladium
Pd
lanthanum
La
potassium sulfate solution
K₂SO₄
potassium chloride solution
KCl
lanthanum-doped few-layer molybdenum disulfide
flower-ball-shaped molybdenum disulfide
MoS₂
ammonium molybdate tetrahydrate
(NH₄)6Mo₇O24·4H₂O
thiourea
CH₄N₂S
Nafion
isopropanol
C₃H₈O
Thickness |
| 0.5–3 nm |
| — |
Voltage | 0.36- 0.04 V | — |
Thickness | 50–200 nm | — |
Temperature | 180–220 °C | — |
Temperature | 80–220 °C | — |
ruthenium
Ru
platinum
Pt
palladium
Pd
lanthanum
La
potassium sulfate solution
K₂SO₄
potassium chloride solution
KCl
lanthanum-doped few-layer molybdenum disulfide
flower-ball-shaped molybdenum disulfide
MoS₂
ammonium molybdate tetrahydrate
(NH₄)6Mo₇O24·4H₂O
thiourea
CH₄N₂S
Nafion
isopropanol
C₃H₈O
Thickness |
| 0.5–3 nm |
| — |
Voltage | 0.36- 0.04 V | — |
Thickness | 50–200 nm | — |
Temperature | 180–220 °C | — |
Temperature | 80–220 °C | — |