Single Layer Graphene Oxide Powder for High-Performance Energy Storage

Single Layer Graphene Oxide (GO) is a single layer graphene sheet material modified with oxygen functional groups, which is in powder form. Its structure is composed of a honeycomb shaped two-dimensional lattice formed by sp ² hybridization of carbon atoms, and there are oxygen functional groups such as hydroxyl (- OH), carboxyl (- COOH), and epoxy (- O -) on the surface of the carbon skeleton. These functional groups endow the material with good hydrophilicity and chemical modifiability, making it have diverse application potential in fields such as materials science, sensors, composite materials, and energy storage.

Single layer graphene oxide powder has a very high specific surface area, which can reach hundreds of square meters per gram. Its sheet thickness is usually between 0.8 and 1.2 nanometers, and the single-layer structure ensures its high flexibility and two-dimensional properties. Powder particles are in the micrometer or nanometer scale, with good dispersibility, and can be uniformly dispersed by solvents or surfactants for the preparation of functional materials.

Core Product Features

High Purity and Monolayer Structure: The product boasts a purity of up to 99.9% and features a thin-layer structure consisting of 1-2 layers, with a thickness of only 0.335-1 nanometers. This high purity and monolayer characteristic serve as the foundation for its outstanding performance.

Rich functional groups: As graphene oxide, its surface and edges contain a large number of oxygen-containing functional groups (oxygen content >54%). These functional groups make it easy to undergo chemical modification or composite with other materials, and also enable it to disperse readily in solvents such as water to form stable solutions, facilitating subsequent processing and applications.

Physical form: The product appears as a light brown flaky powder, with flake diameters ranging from 0.5 to 5 micrometers.

Structural characteristics

The two-dimensional structure of monolayer graphene oxide endows it with unique physicochemical characteristics. The presence of oxygen-containing functional groups enhances its dispersibility in aqueous or polar solvents while providing chemical modification sites that can further tailor material properties through chemical reactions or surface modifications. Due to the weak van der Waals forces between layers, monolayer graphene oxide powder is prone to restoration or exfoliation, forming the foundation for preparing high-performance conductive films, composites, and thin-film devices.

At the microscopic scale, monolayer graphene oxide exhibits irregular flake-like morphology, with carboxyl and hydroxyl functional groups at the edges of the flakes, while the surface primarily contains epoxy and hydroxyl groups. These functional groups demonstrate strong affinity for adsorbing metal ions, drug molecules, and polymer macromolecules. The material features high lattice continuity and relatively controllable defects, enabling the modulation of its electrical conductivity and chemical stability through methods such as thermal reduction and chemical reduction.

Main applications in battery research

As a high-performance electrode material:

Negative electrode material: In lithium-ion batteries, its extremely high specific surface area and good conductivity can be used as a negative electrode material to improve the transfer speed of ions and electrons, thereby achieving more efficient charging and discharging, and extending battery life with stable cycling performance.

Positive electrode material: In supercapacitors, it can be used as a positive electrode material with the goal of improving the energy density and power density of the device.

As a multifunctional additive:

Electrode additive: By combining it with traditional positive or negative electrode materials, a conductive network can be constructed to enhance the overall conductivity and structural stability of the electrode.

Electrolyte additives: As mentioned in the product description, graphene oxide nanocomposites can also be used as electrolyte additives to improve battery capacity, cycling performance, and even safety performance.

For in-situ composite modification: Due to its easy dispersion and modification properties, researchers can conveniently in-situ composite it with other functional materials, thereby endowing the composite material with various new functions such as conductivity, thermal conductivity, reinforcement, flame retardancy, etc.