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777684

Sigma-Aldrich

Reduced graphene oxide

Sinónimos:

rGO

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About This Item

Fórmula lineal:
CxOyHz
Código UNSPSC:
12352103
NACRES:
NA.23

descripción

chemically reduced

Nivel de calidad

100

formulario

powder

composición

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

superficie

450 m2/g

conductividad

>600 S/m

solubilidad

water: insoluble

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Descripción general

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.

Aplicación

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.

Nota de preparación

  • 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

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
MKCQ2807
MKCP3009
MKCM4978
MKCJ9529
MKCG3921

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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
Zhang; Liming;
Journal of Material Chemistry B: Materials for Biology and Medicine, 1(6), 749-755 (2013)
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
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

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3D Printing of Carbon Fiber-Reinforced Composites

3D printing is a type of additive manufacturing that can be used to rapidly fabricate components with highly customizable geometries.

Fluorescence Quenching Microscopy: Imaging Two-Dimensional Materials

Developed in the last several years, fluorescence quenching microscopy (FQM) has enabled rapid, inexpensive, and high-fidelity visualization of two-dimensional (2D) materials such as graphene-based sheets and MoS2.

Graphene Nanoribbons: Production and Applications

Graphene is a one-atomic-layer thick two-dimensional material made of carbon atoms arranged in a honeycomb structure. Its fascinating electrical, optical, and mechanical properties ignited enormous interdisciplinary interest from the physics, chemistry, and materials science fields.

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