氧化石墨烯纸,玻璃基氧化石墨烯薄膜,单层氧化石墨烯,还原氧化石墨烯,单层氧化石墨烯水溶液

                                                  石墨烯专家


                                                  氧化石墨烯
                                                  Graphene Oxide

                                                  氧化石墨烯:膜 Graphene Oxide:Films
                                                  Graphene Oxide Paper, 氧化石墨烯纸
                                                  The Graphene Oxide Thin Film on Glass, 玻璃基氧化石墨烯薄膜
                                                  The Reduced Graphene Oxide Thin Film on Glass, 玻璃基还原氧化石墨烯薄膜

                                                  氧化石墨烯:粉末 Graphene Oxide: Powders/Flakes
                                                  Single Layer Graphene Oxide, 单层氧化石墨烯
                                                  High Porosity Reduced Graphene Oxide, 多孔性还原氧化石墨烯
                                                  High Surface Area Reduced Graphene Oxide, 高表面积还原氧化石墨烯
                                                  Single Layer Graphene Oxide (Small Flakes), 单层氧化石墨烯

                                                  氧化石墨烯:溶液 Graphene Oxide: Solutions
                                                  Dispersion in Water: Single Layer Graphene Oxide, 单层氧化石墨烯水溶液
                                                  Highly Concentrated Graphene Oxide, 高浓缩氧化石墨烯
                                                  Ultra Highly Concentrated Single-Layer Graphene Oxide, 超高浓缩单层氧化石墨烯

                                                   

                                                  氧化石墨烯:膜 Graphene Oxide: Films
                                                  Graphene Oxide Paper
                                                  氧化石墨烯纸
                                                  Diameter: 4.0 cm 氧化石墨烯纸 Parameters:
                                                  Diameter: 4.0cm
                                                  Thickness: 10 microns
                                                  Non-conductive
                                                  Tensile modulus> 20 GPa
                                                  Color: Black
                                                  Bends easily

                                                  图片
                                                  The Graphene Oxide Thin Film on Glass
                                                  玻璃基氧化石墨烯薄膜
                                                  Diameter: 5.08 cm 玻璃基氧化石墨烯薄膜 Specifications:
                                                  Diameter of Graphene Oxide Film: 35 mm
                                                  Thickness: 175 nm
                                                  Deposited on a round slide: D=5.08 cm, thickness=1 mm

                                                  透过率曲线
                                                  The Reduced Graphene Oxide Thin Film on Glass
                                                  玻璃基还原氧化石墨烯薄膜
                                                  Diameter: 35 mm 玻璃基还原氧化石墨烯薄膜 Specifications:
                                                  Diameter of Reduced Graphene Oxide Film: 35 mm
                                                  Thickness: 175 nm
                                                  Deposited on a round slide: D=50.8 cm, thickness=1 mm
                                                  Sheet resistance: about 105 Ohm/[]
                                                   
                                                  氧化石墨烯:粉末 Graphene Oxide: Powders/Flakes
                                                  Single Layer Graphene Oxide
                                                  单层氧化石墨烯
                                                  0.5 g 单层氧化石墨烯 Dry powder

                                                  Color:Brown
                                                  Composition: Carbon (79%), Oxygen (20%)
                                                  Flake size: 0.5-5 microns.
                                                  Thickness: 1 atomic layer - at least 80%.

                                                  Our GO powders have improved dispersibility in various solvents. An aqueous solution may be prepared by mixing GO powder in water then sonicating the dispersion for an additional hour. Graphene oxide layers are about 1.1 ± 0.2 nm thick.

                                                  拉曼光谱图 / AFM图像 / SEM图像
                                                  1 g 单层氧化石墨烯
                                                  High Porosity Reduced Graphene Oxide
                                                  多孔性还原氧化石墨烯
                                                  0.25 g 多孔性还原氧化石墨烯 Dry black powder

                                                  Specifications:
                                                  Specific surface area-about 400 m2/g
                                                  Color: Black
                                                  Solid content: 98%
                                                  Average flake thickness:1 monolayer
                                                  Average Particle (lateral) size: ~3-10 microns.
                                                  Flakes have multiple openings and holes
                                                  Improved solubility in organic solvents

                                                  拉曼光谱图 / SEM图像1 / SEM图像2
                                                  0.5 g 多孔性还原氧化石墨烯
                                                  High Surface Area Reduced Graphene Oxide
                                                  高表面积还原氧化石墨烯
                                                  75 mg 高表面积还原氧化石墨烯 Dry black powder

                                                  Specifications:
                                                  Specific surface area-833 m2/g
                                                  Color: Black
                                                  Solid content: 98%
                                                  Carbon/Oxygen Ratio 10.5
                                                  Average flake thickness:1 monolayer
                                                  Average Particle (lateral) size: ~3-5 microns.

                                                  SEM图像1 / SEM图像2 / SEM图像3
                                                  Single Layer Graphene Oxide (Small Flakes)
                                                  单层氧化石墨烯
                                                  1 g 单层氧化石墨烯 Dry paper-like powder

                                                  Color: Brown
                                                  Composition: Carbon (79%), Oxygen (20%)
                                                  Flake size: 0.3-0.7 microns.
                                                  Thickness: 1 atomic layer - about 50%.

                                                  Graphene oxide disperses readily in water and other solvents, breaking up into macroscopic flakes, mostly one layer thick. Graphene oxide layers are about 1.1 ± 0.2 nm thick.
                                                   
                                                  氧化石墨烯:溶液 Graphene Oxide: Solutions
                                                  Dispersion in Water: Single Layer Graphene Oxide
                                                  单层氧化石墨烯水溶液
                                                  60 ml 单层氧化石墨烯水溶液 Concentration: 500 mg/L
                                                  Composition: Carbon (79%), Oxygen (20%)
                                                  Flake size: 0.3-0.7 microns
                                                  Thickness: 1 atomic layer - at least 80%.
                                                  Color:Brown

                                                  SEM图像
                                                  175 ml 单层氧化石墨烯水溶液
                                                  Highly Concentrated Graphene Oxide
                                                  高浓缩氧化石墨烯
                                                  60 ml 高浓缩氧化石墨烯 Highly Concentrated Graphene Oxide Dispersion in Water
                                                  Aqueous dispersion, 60 ml
                                                  Concentration: 5g/L
                                                  Composition: Carbon (79%), Oxygen (20%)
                                                  Flake size: 0.5-5 microns
                                                  Thickness: 1 atomic layer - at least 60%.
                                                  Color:Brown

                                                  SEM图像
                                                  175 ml 高浓缩氧化石墨烯
                                                  1000 ml 高浓缩氧化石墨烯
                                                  Ultra Highly Concentrated Single-Layer Graphene Oxide
                                                  超高浓缩单层氧化石墨烯
                                                  60 ml 高浓缩氧化石墨烯 Properties:
                                                  Concentration: 6.2 g/L
                                                  Single Layer > 80%
                                                  Flake Size: 0.5-5 Microns
                                                  Color: Brown
                                                  Highly Viscous

                                                  Centrifugation has been used to prepare extra-large flakes and get an ultra-high concentration of Graphene Oxide. The ultra-highly concentrated graphene oxide forms paper-like substances and will coat virtually any surface, including the bottle itself.

                                                  Production of Graphene Oxide:
                                                  Graphene Oxide is the oxidized form of graphene produced by oxidizing crystal graphite with a mixture of sulfuric acid, sodium nitrate, and potassium permanganate (the Hummers method). Structurally, Graphene Oxide can be visualized as a graphene sheet with its basal plane decorated by oxygen-containing groups. Due to high affinity to water molecules by these groups, Graphene Oxide is hydrophilic and can be dissolved in water. The solubility in water makes the deposition of the thin films of the Graphene Oxide straightforward. Graphene Oxide is a poor conductor but its treatment by light, heat, or chemical reduction can restore most properties of pristine graphene.

                                                  拉曼图像
                                                  175 ml 高浓缩氧化石墨烯
                                                  500 ml 高浓缩氧化石墨烯

                                                   


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