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777684

Sigma-Aldrich

Reduced graphene oxide

Synonyme(s) :

rGO

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About This Item

Formule linéaire :
CxOyHz
Code UNSPSC :
12352103
Nomenclature NACRES :
NA.23

Description

chemically reduced

Forme

powder

Composition

Carbon, ≥75 wt. %
Nitrogen, >5 wt. %
Oxygen, <22 wt. %

Superficie

450 m2/g

Conductivité

>600 S/m

Solubilité

water: insoluble

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Catégories apparentées

Description générale

The structure of graphene oxide is similar to graphene containing residual oxygen, heteroatoms and structural defects. Reduced graphene oxide (rGO) can be extracted as thin film from an aqueous solution of graphite oxide (GO) slurry. Many modern procedures for the synthesis of GO are based on the Hummers method, in which graphite is oxidized by a solution of potassium permanganate in sulfuric acid. Reduction of GO using hydrazine has been reported. However, hydrazine is highly toxic and can potentially functionalize GO with nitrogen heteroatoms. Because of these issues, alternatives to hydrazine including NaBH4, ascorbic acid, and HI, among others have been used for the reduction of GO. GO can be reduced as a thin film or in an aqueous solution. Reduction methods have been recently reviewed.

Application

Webinar: Graphene-Based Nanomaterials for Versatile Biosensors
The spin-coated reduced graphene oxide (rGO) thin films have been used as annode buffer layer to fabricate bulk heterojunction org. solar cells. PEGylated rGO may be used as:
  • chemical sensors, biosensors
  • as transparent electrodes in light emitting diodes (LEDs) and ITOs
  • in lithium ion batteries.

Notes préparatoires

  • Reduction method: Chemically reduced
  • Color: Black
  • Odor: Odorless
  • Solubility: Insoluble
  • Dispersability: It can be dispersed at low concentrations (<0.1mg/mL) in NPM, DMSO, DMF
  • Electrical conductivity: > 600S/m
  • BET surface area: 450 m2/g

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Consulter la Bibliothèque de documents

Goki Eda et al.
Nature nanotechnology, 3(5), 270-274 (2008-07-26)
The integration of novel materials such as single-walled carbon nanotubes and nanowires into devices has been challenging, but developments in transfer printing and solution-based methods now allow these materials to be incorporated into large-area electronics. Similar efforts are now being
Zhang; Liming;
Journal of Material Chemistry B: Materials for Biology and Medicine, 1(6), 749-755 (2013)
Somayeh Mousavi Nodoushan et al.
Biosensors & bioelectronics, 127, 221-228 (2019-01-10)
Detection of staphylococcal enterotoxin B (SEB) as a bacterial toxin causing severe food poisoning is of great importance. Herein, we developed an electrochemical aptasensor for SEB detection using a screen printed electrode modified with reduced graphene oxide (rGO) and gold
Monique C P Mendonça et al.
Nanomaterials (Basel, Switzerland), 9(6) (2019-06-15)
Graphene-based nanomaterials (GBNs) possess unique physicochemical properties, allowing a wide range of applications in physical, chemical, and biomedical fields. Although GBNs are broadly used, information about their adverse effects on ecosystem health, especially in the terrestrial environment, is limited. Therefore
Rosa Garriga et al.
Nanomaterials (Basel, Switzerland), 10(8) (2020-08-23)
Carbon nanomaterials have attracted increasing attention in biomedicine recently to be used as drug nanocarriers suitable for medical treatments, due to their large surface area, high cellular internalization and preferential tumor accumulation, that enable these nanomaterials to transport chemotherapeutic agents

Articles

Graphene Oxide & Reduced Graphene Oxide Applications

Graphene oxide, a monomolecular layer of graphite with oxygen functionalities, holds unique properties valuable for various applications in materials science.

Graphene Oxide & Reduced Graphene Oxide Applications

Graphene oxide, a monomolecular layer of graphite with oxygen functionalities, holds unique properties valuable for various applications in materials science.

Graphene Oxide & Reduced Graphene Oxide Applications

Graphene oxide, a monomolecular layer of graphite with oxygen functionalities, holds unique properties valuable for various applications in materials science.

Graphene Oxide & Reduced Graphene Oxide Applications

Graphene oxide, a monomolecular layer of graphite with oxygen functionalities, holds unique properties valuable for various applications in materials science.

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