Patent
US 10,493,426GRAPHENE-METAL CHALCOGENIDE POROUS MATERIAL
Hua ZHANG
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,493,426Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 5A to 5C show photographs showing adsorption of additional dyes, where
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of preparing a graphene-metal chalcogenide porous material, the method comprising a) providing a dispersion comprising graphene oxide; b) adding a metal precursor and a chalcogenide precursor to the dispersion to form a mixture; c) heating the mixture under hydrothermal conditions to form a gel; and d) freeze drying the gel to obtain the graphene-metal chalcogenide porous material, wherein a weight ratio of metal chalcogenide to graphene in the graphene-metal chalcogenide material is in the range of about 700 wt % to about 900 wt %. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from Group 4 to Group 6 of the Periodic Table of Elements. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from the group consisting of Mo, Ta, Ti, W, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor is selected from the group consisting of a molybdate, a tantalate, a titanate, a tungstate, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor comprises an alkali metal molybdate salt. Previously presented
The method according to claim 1, wherein the metal precursor comprises sodium molybdate dehydrate. Previously presented
The method according to claim 1, wherein the chalcogenide precursor is selected from the group consisting of a thioamide, a selenoamide, a tellurium amide, and combinations thereof. Previously presented
The method according to claim 1, wherein the chalcogenide precursor comprises thioacetamide. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel at a temperature in the range of about 150 0 C to about 250 0 C. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel for a time period in the range of about 12 h to about 48 h. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out at a temperature in the range of about -50 0 C to about 0 0 C. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out for a time period in the range of about 24 h to about 56 h. Previously presented
The method according to claim 1, wherein the metal chalcogenide comprises a metal dichalcogenide. Previously presented
The method according to claim 1, wherein the metal chalcogenide SVG 15112355.10-08-2019.K₁IU₃QG₁RXEAPX4.CLM.1.svg 0.16 6.27 Black and white TiS2, WS2, and combinations thereof. Currently amended
The method according to claim 1, wherein the metal chalcogenide is negatively charged. Previously presented
The method according to claim 1, wherein adding the metal precursor and the chalcogenide precursor to the dispersion to form a mixture comprises adding at least one of metal particles or metal oxide particles to the dispersion. Previously presented
The method according to claim 1, wherein porosity of the graphene-metal chalcogenide porous material is in the range of about 99.5 % to about 99.9 %. Previously presented
Canceled
Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene-metal chalcogenide porous material
graphene oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
porosity of graphene-metal chalcogenide porous material | 99.5–99.9 % | graphene-metal chalcogenide porous material |
Duration | 0.5–24 hours |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,493,426Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 5A to 5C show photographs showing adsorption of additional dyes, where
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of preparing a graphene-metal chalcogenide porous material, the method comprising a) providing a dispersion comprising graphene oxide; b) adding a metal precursor and a chalcogenide precursor to the dispersion to form a mixture; c) heating the mixture under hydrothermal conditions to form a gel; and d) freeze drying the gel to obtain the graphene-metal chalcogenide porous material, wherein a weight ratio of metal chalcogenide to graphene in the graphene-metal chalcogenide material is in the range of about 700 wt % to about 900 wt %. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from Group 4 to Group 6 of the Periodic Table of Elements. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from the group consisting of Mo, Ta, Ti, W, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor is selected from the group consisting of a molybdate, a tantalate, a titanate, a tungstate, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor comprises an alkali metal molybdate salt. Previously presented
The method according to claim 1, wherein the metal precursor comprises sodium molybdate dehydrate. Previously presented
The method according to claim 1, wherein the chalcogenide precursor is selected from the group consisting of a thioamide, a selenoamide, a tellurium amide, and combinations thereof. Previously presented
The method according to claim 1, wherein the chalcogenide precursor comprises thioacetamide. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel at a temperature in the range of about 150 0 C to about 250 0 C. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel for a time period in the range of about 12 h to about 48 h. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out at a temperature in the range of about -50 0 C to about 0 0 C. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out for a time period in the range of about 24 h to about 56 h. Previously presented
The method according to claim 1, wherein the metal chalcogenide comprises a metal dichalcogenide. Previously presented
The method according to claim 1, wherein the metal chalcogenide SVG 15112355.10-08-2019.K₁IU₃QG₁RXEAPX4.CLM.1.svg 0.16 6.27 Black and white TiS2, WS2, and combinations thereof. Currently amended
The method according to claim 1, wherein the metal chalcogenide is negatively charged. Previously presented
The method according to claim 1, wherein adding the metal precursor and the chalcogenide precursor to the dispersion to form a mixture comprises adding at least one of metal particles or metal oxide particles to the dispersion. Previously presented
The method according to claim 1, wherein porosity of the graphene-metal chalcogenide porous material is in the range of about 99.5 % to about 99.9 %. Previously presented
Canceled
Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene-metal chalcogenide porous material
graphene oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
porosity of graphene-metal chalcogenide porous material | 99.5–99.9 % | graphene-metal chalcogenide porous material |
Duration | 0.5–24 hours |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,493,426Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 5A to 5C show photographs showing adsorption of additional dyes, where
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of preparing a graphene-metal chalcogenide porous material, the method comprising a) providing a dispersion comprising graphene oxide; b) adding a metal precursor and a chalcogenide precursor to the dispersion to form a mixture; c) heating the mixture under hydrothermal conditions to form a gel; and d) freeze drying the gel to obtain the graphene-metal chalcogenide porous material, wherein a weight ratio of metal chalcogenide to graphene in the graphene-metal chalcogenide material is in the range of about 700 wt % to about 900 wt %. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from Group 4 to Group 6 of the Periodic Table of Elements. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from the group consisting of Mo, Ta, Ti, W, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor is selected from the group consisting of a molybdate, a tantalate, a titanate, a tungstate, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor comprises an alkali metal molybdate salt. Previously presented
The method according to claim 1, wherein the metal precursor comprises sodium molybdate dehydrate. Previously presented
The method according to claim 1, wherein the chalcogenide precursor is selected from the group consisting of a thioamide, a selenoamide, a tellurium amide, and combinations thereof. Previously presented
The method according to claim 1, wherein the chalcogenide precursor comprises thioacetamide. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel at a temperature in the range of about 150 0 C to about 250 0 C. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel for a time period in the range of about 12 h to about 48 h. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out at a temperature in the range of about -50 0 C to about 0 0 C. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out for a time period in the range of about 24 h to about 56 h. Previously presented
The method according to claim 1, wherein the metal chalcogenide comprises a metal dichalcogenide. Previously presented
The method according to claim 1, wherein the metal chalcogenide SVG 15112355.10-08-2019.K₁IU₃QG₁RXEAPX4.CLM.1.svg 0.16 6.27 Black and white TiS2, WS2, and combinations thereof. Currently amended
The method according to claim 1, wherein the metal chalcogenide is negatively charged. Previously presented
The method according to claim 1, wherein adding the metal precursor and the chalcogenide precursor to the dispersion to form a mixture comprises adding at least one of metal particles or metal oxide particles to the dispersion. Previously presented
The method according to claim 1, wherein porosity of the graphene-metal chalcogenide porous material is in the range of about 99.5 % to about 99.9 %. Previously presented
Canceled
Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene-metal chalcogenide porous material
graphene oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
porosity of graphene-metal chalcogenide porous material | 99.5–99.9 % | graphene-metal chalcogenide porous material |
Duration | 0.5–24 hours |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,493,426Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 5A to 5C show photographs showing adsorption of additional dyes, where
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of preparing a graphene-metal chalcogenide porous material, the method comprising a) providing a dispersion comprising graphene oxide; b) adding a metal precursor and a chalcogenide precursor to the dispersion to form a mixture; c) heating the mixture under hydrothermal conditions to form a gel; and d) freeze drying the gel to obtain the graphene-metal chalcogenide porous material, wherein a weight ratio of metal chalcogenide to graphene in the graphene-metal chalcogenide material is in the range of about 700 wt % to about 900 wt %. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from Group 4 to Group 6 of the Periodic Table of Elements. Previously presented
The method according to claim 1, wherein the metal precursor is a precursor of a metal selected from the group consisting of Mo, Ta, Ti, W, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor is selected from the group consisting of a molybdate, a tantalate, a titanate, a tungstate, and combinations thereof. Previously presented
The method according to claim 1, wherein the metal precursor comprises an alkali metal molybdate salt. Previously presented
The method according to claim 1, wherein the metal precursor comprises sodium molybdate dehydrate. Previously presented
The method according to claim 1, wherein the chalcogenide precursor is selected from the group consisting of a thioamide, a selenoamide, a tellurium amide, and combinations thereof. Previously presented
The method according to claim 1, wherein the chalcogenide precursor comprises thioacetamide. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel at a temperature in the range of about 150 0 C to about 250 0 C. Previously presented
The method according to claim 1, wherein heating the mixture under hydrothermal conditions comprises heating the mixture in a closed vessel for a time period in the range of about 12 h to about 48 h. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out at a temperature in the range of about -50 0 C to about 0 0 C. Previously presented
The method according to claim 1, wherein freeze drying the gel is carried out for a time period in the range of about 24 h to about 56 h. Previously presented
The method according to claim 1, wherein the metal chalcogenide comprises a metal dichalcogenide. Previously presented
The method according to claim 1, wherein the metal chalcogenide SVG 15112355.10-08-2019.K₁IU₃QG₁RXEAPX4.CLM.1.svg 0.16 6.27 Black and white TiS2, WS2, and combinations thereof. Currently amended
The method according to claim 1, wherein the metal chalcogenide is negatively charged. Previously presented
The method according to claim 1, wherein adding the metal precursor and the chalcogenide precursor to the dispersion to form a mixture comprises adding at least one of metal particles or metal oxide particles to the dispersion. Previously presented
The method according to claim 1, wherein porosity of the graphene-metal chalcogenide porous material is in the range of about 99.5 % to about 99.9 %. Previously presented
Canceled
Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene-metal chalcogenide porous material
graphene oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 A to 1 D are scanning electron microscopy (SEM) images depicting morphology of graphene/MoS₂ foams (GMFs).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
porosity of graphene-metal chalcogenide porous material | 99.5–99.9 % | graphene-metal chalcogenide porous material |
Duration | 0.5–24 hours |
Related documents with shared materials, methods, properties, or citations.
Group 4 to Group 6 metal precursor
Mo, Ta, Ti, or W metal precursor
molybdate, tantalate, titanate, or tungstate
alkali metal molybdate salt
sodium molybdate dehydrate
Na₂MoO4·2H₂O
thioamide, selenoamide, or tellurium amide
thioacetamide
CH₃CSNH₂
metal dichalcogenide
TiS₂
WS₂
metal particles
metal oxide particles
gold, silver, or copper particles
nickel oxide, manganese oxide, iron oxide, or zinc oxide particles
MoS₂
MoSe₂
TaS₂
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
| — |
Temperature | 98–99 °C | — |
Group 4 to Group 6 metal precursor
Mo, Ta, Ti, or W metal precursor
molybdate, tantalate, titanate, or tungstate
alkali metal molybdate salt
sodium molybdate dehydrate
Na₂MoO4·2H₂O
thioamide, selenoamide, or tellurium amide
thioacetamide
CH₃CSNH₂
metal dichalcogenide
TiS₂
WS₂
metal particles
metal oxide particles
gold, silver, or copper particles
nickel oxide, manganese oxide, iron oxide, or zinc oxide particles
MoS₂
MoSe₂
TaS₂
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
| — |
Temperature | 98–99 °C | — |
Group 4 to Group 6 metal precursor
Mo, Ta, Ti, or W metal precursor
molybdate, tantalate, titanate, or tungstate
alkali metal molybdate salt
sodium molybdate dehydrate
Na₂MoO4·2H₂O
thioamide, selenoamide, or tellurium amide
thioacetamide
CH₃CSNH₂
metal dichalcogenide
TiS₂
WS₂
metal particles
metal oxide particles
gold, silver, or copper particles
nickel oxide, manganese oxide, iron oxide, or zinc oxide particles
MoS₂
MoSe₂
TaS₂
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
| — |
Temperature | 98–99 °C | — |
Group 4 to Group 6 metal precursor
Mo, Ta, Ti, or W metal precursor
molybdate, tantalate, titanate, or tungstate
alkali metal molybdate salt
sodium molybdate dehydrate
Na₂MoO4·2H₂O
thioamide, selenoamide, or tellurium amide
thioacetamide
CH₃CSNH₂
metal dichalcogenide
TiS₂
WS₂
metal particles
metal oxide particles
gold, silver, or copper particles
nickel oxide, manganese oxide, iron oxide, or zinc oxide particles
MoS₂
MoSe₂
TaS₂
FIG. 2A to 2D are X-ray photoelectron spectroscopy (XPS) of graphene/MoS₂ 5 composite.
FIG. 3E is a graph showing sorption capacity of GMFs for (i) methyl orange and (ii) 15 methylene blue.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 4A to 4D depict absorption and recyclability of organic liquids by graphene/MoS₂ composite disclosed herein.
FIG. 6B are photographs of the dispersion of GMFs (GMF₁ to GMF₄) showing effect of surface potential.
| — |
Temperature | 98–99 °C | — |