Graphene dispersion

Name: Graphene dispersion
Brand: ALDRICH
Price: 106 EUR

≥0.2 mg/mLin DMF, sheet resistance 2 kΩ/sq, avg. no. of layers, 1 ‑ 3

Synonyme(s) :

Conductive ink, Electrochemically exfoliated graphene ink, Graphene ink

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50 ML

106,00 €

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A propos de cet article

UNSPSC Code:

12141908

NACRES:

NA.23

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Nom du produit

Graphene dispersion, ≥0.2 mg/mL in DMF, sheet resistance 2 kΩ/sq, avg. no. of layers, 1 ‑ 3

description

Dispersion in DMF
Electrodes

form

dispersion

feature

avg. no. of layers 1 ‑ 3

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

concentration

≥0.2 mg/mL (electrochemically exfoliated graphene)
≥0.2 mg/mL in DMF

greener alternative category

Enabling,

Quality Level

100

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Catégories apparentées

Carbon Nanomaterials

Electronic Materials

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Materials for Advanced Display Technology

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Cet article	803839	900450	902926
Sigma-Aldrich 900448 Graphene dispersion	Sigma-Aldrich 803839 Graphene dispersion	Sigma-Aldrich 900450 Graphene dispersion	Sigma-Aldrich 902926 Graphite dispersion
description Dispersion in DMF	description -	description -	description Capacity: 250 − 400 mAh/g, Conductivity: 1.0x10^-3 – 1.0x10^-5 S/m, I_D/I_G peak ratio: < 0.1 (by Raman), Surface area: 4.0x10⁶- 1.0x10⁸ mm²/g
form dispersion	form dispersion (in NMP)	form dispersion	form dispersion
feature avg. no. of layers 1 ‑ 3	feature -	feature avg. no. of layers 1 ‑ 3	feature avg. no. of layers 8 ‑ 30
greener alternative product characteristics Design for Energy Efficiency Learn more about the Principles of Green Chemistry.	greener alternative product characteristics -	greener alternative product characteristics Design for Energy Efficiency Learn more about the Principles of Green Chemistry.	greener alternative product characteristics -
sustainability Greener Alternative Product	sustainability -	sustainability Greener Alternative Product	sustainability -
concentration ≥0.2 mg/mL (electrochemically exfoliated graphene)	concentration 10 mg/mL	concentration 1 mg/mL (electrochemically exfoliated graphene), 1 mg/mL in DMF	concentration -

General description

Graphene preparation method: electrochemical exfoliation.
Graphene thickness by AFM: ∼80% 1-3 layers.
Sheet size by AFM: 5-10 μm.
Oxygen content: 5.5 at.% (C/O-ratio: 17.2).
Raman I_D/I_G ratio: 0.25.
Sheet resistance: 2 kΩ/sq.
Typical properties of films produced thereof (after dilution to 0.1 mg/mL and dry transfer from PTFE-filter):

6 nm film: 91% transmittance, sheet resistance of 24.2 kΩ/sq (as made), 7.9 kΩ/sq (after 30 min, 200 °C), <1 kΩ/sq (conc. HNO₃-treatment).
16 nm film: 73% transmittance, sheet resistance of 7.6 kΩ/sq (as made), 1.8 kΩ/sq (after 30 min, 200 °C), <500 Ω/sq (conc. HNO₃-treatment).

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with "Design for energy efficency". Graphene inks are highly conductive, low cost and super flexible. Click here for more information.

pictograms

GHS02,GHS08,GHS07

signalword

Danger

hcodes

H226,H312 + H332,H319,H360D

pcodes

P210 - P280 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 1B

Classe de stockage

3 - Flammable liquids

wgk

WGK 2

flash_point_f

131.0 °F

flash_point_c

55 °C

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Exfoliation of graphite into graphene in aqueous solutions of inorganic salts.

Khaled Parvez et al.

Journal of the American Chemical Society, 136(16), 6083-6091 (2014-04-02)

Mass production of high-quality graphene sheets is essential for their practical application in electronics, optoelectronics, composite materials, and energy-storage devices. Here we report a prompt electrochemical exfoliation of graphene sheets into aqueous solutions of different inorganic salts ((NH4)2SO4, Na2SO4, K2SO4

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