Reduced Graphene Oxide Nanopowder
Reduced Graphene Oxide Nanopowder
| Product Name | Reduced Graphene Oxide Nanopowder |
| Product No | NRE-39021 |
| HS Code | 38019000 |
| Purity | 99.9% |
| Form | Powder |
| Color | Black |
| Density | 1.71 g/cm3 |
| Electrical Conductivity | 3112 S/cm |
| Average Particle (lateral) size | ~3-10 microns (Customized) |
| Average flake thickness | 1 monolayer |
| Reduction method | Chemically reduced |
| Dispersibility | It can be dispersed at low concentration in NMP, DMSO, DMF |
| Concentrations | <0.1mg/mL |
| Humidity (Karl Fisher) | 1.7 – 2.2% |
| BET surface area | 402.69 – 425.85 m2/g |
| Solubility | Insoluble |
Chemical Analysis
| C (%) | 78 – 88% |
| H (%) | 0 – 1% |
| N (%) | 0 – 1% |
| S (%) | 0 |
| O (%) | 12 – 21% |
Reduced Graphene Oxide Nanopowder
Introduction
Reduced Graphene Oxide nanopowder (rGO) is a derivative of graphene oxide (GO), which is a chemically modified form of graphene. These functional groups make graphene oxide highly hydrophilic and dispersible in water, but they also reduce its electrical conductivity and limit its potential for certain applications.
Applications of Reduced Graphene Oxide Nanopowder
The unique properties of reduced graphene oxide nanopowder (rGO) make it an attractive material for a wide range of applications, spanning electronics, energy storage, composites, sensors, and environmental remediation. Some of the key applications include:
Energy Storage and Supercapacitors
Supercapacitors: rGO nanopowder is used as a high-performance electrode material in supercapacitors. Its high surface area, electrical conductivity, and pseudocapacitive behavior (due to the presence of some oxygenated groups) enhance the energy storage and charge/discharge rates. rGO-based supercapacitors have fast charge times, high power density, and long cycle life, making them ideal for energy storage applications such as in electric vehicles, consumer electronics, and renewable energy storage.
Lithium-Ion Batteries: rGO is also used in lithium-ion batteries (LIBs) to improve the performance of anodes. By combining rGO with materials like silicon or tin, the overall capacity, stability, and cycling efficiency of the batteries can be enhanced. The rGO nanopowder improves the conductivity of the electrode materials and supports the formation of a stable solid-electrolyte interface (SEI), which leads to longer-lasting batteries.
Sodium-Ion Batteries: Similar to lithium-ion batteries, rGO is being researched for sodium-ion batteries, an alternative energy storage technology. Sodium-ion batteries are considered a more cost-effective solution for large-scale energy storage applications, and rGO helps improve electrode conductivity and capacity retention during cycling.
Electronics and Conductive Materials
Flexible Electronics: rGO nanopowder is used to fabricate conductive films and inks for flexible electronics. When combined with polymer substrates (e.g., plastic or paper), rGO provides excellent conductivity while maintaining the flexibility needed for devices like wearable electronics, flexible sensors, and OLED displays.
Conductive Inks: rGO nanopowder is incorporated into conductive inks used in printed electronics, such as RFID tags, solar cells, and electronic circuits. These inks allow the production of low-cost, flexible, and lightweight electronic devices, and rGO serves as a cost-effective alternative to traditional conductive materials like silver and copper.
Transparent Conductive Films: rGO can be used to produce transparent conductive films, which are essential components in touchscreens, OLED displays, and solar panels. These films combine the high transparency of graphene with the conductivity of rGO, offering a flexible, lightweight, and cost-efficient alternative to traditional transparent conductors such as indium tin oxide (ITO).
Composites and Structural Materials
Lightweight and High-Strength Composites: rGO nanopowder is used in the fabrication of composite materials, where it acts as a reinforcing agent. When incorporated into polymers, metals, or ceramics, rGO improves the mechanical strength, thermal stability, and electrical conductivity of the composite. These composites are used in a variety of industries, including automotive, aerospace, construction, and electronics, where lightweight yet durable materials are required.
Conductive Polymers: rGO nanopowder is also used to enhance the conductivity of polymers. These conductive polymer composites can be used in applications such as antistatic coatings, electromagnetic shielding, and sensors.
3D Printing: In additive manufacturing (3D printing), rGO can be incorporated into printing inks to produce 3D-printed conductive objects, offering applications in prototyping, flexible electronics, and functional devices.
