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900416

Sigma-Aldrich

Nitrogen-doped graphene

Synonym(e):

N-Doped graphene, NDG, NG

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About This Item

UNSPSC-Code:
12352200

Form

powder

Zusammensetzung

Carbon, >80 wt. %
Nitrogen, >4 wt. %

Farbe

black

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Allgemeine Beschreibung

This highly exfoliated nitrogen-doped graphene exhibits high electrochemical activity towards oxygen reduction in alkali medium providing an affordable industrial alternative to currently used noble metal-based catalysts (i.e. Pt, Pd). This nitrogen-doped graphene shows high onset potential (ca. 940 mV vs. RHE) carrying out the electrochemical oxygen reduction reaction (ORR) towards a 4 electron pathway avoiding the production of H2O2. Furthermore, this material is reported to be more stable (to MeOH) and durable (CO tolerance) than Pt-based catalysts.This highly exfoliated nitrogen-doped graphene exhibits high electrochemical activity towards oxygen reduction in alkali medium providing an affordable industrial alternative to currently used noble metal-based catalysts (i.e. Pt, Pd). This nitrogen-doped graphene shows high onset potential (ca. 940 mV vs. RHE) carrying out the electrochemical oxygen reduction reaction (ORR) towards a 4 electron pathway avoiding the production of H2O2. Furthermore, this material is reported to be more stable (to MeOH) and durable (CO tolerance) than Pt-based catalysts.

Physikalische Eigenschaften

Electrocatalytic oxygen reduction reaction (ORR) onset potential: >-0.1 V (0.1 M KOH vs Ag/AgCl).

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

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