Direkt zum Inhalt
Merck
Alle Fotos(1)

Key Documents

900416

Sigma-Aldrich

Nitrogen-doped graphene

Synonym(e):

N-Doped graphene, NDG, NG

Anmeldenzur Ansicht organisationsspezifischer und vertraglich vereinbarter Preise
Alle Fotos(1)

About This Item

UNSPSC-Code:
12352200

Form

powder

Zusammensetzung

Carbon, >80 wt. %
Nitrogen, >4 wt. %

Farbe

black

Suchen Sie nach ähnlichen Produkten? Aufrufen Leitfaden zum Produktvergleich

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCC2706

Die passende Version wird nicht angezeigt?

Wenn Sie eine bestimmte Version benötigen, können Sie anhand der Lot- oder Chargennummer nach einem spezifischen Zertifikat suchen.

Suche nach COA

Besitzen Sie dieses Produkt bereits?

In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Kunden haben sich ebenfalls angesehen

Slide 1 of 4

1 of 4

Graphene silane modified, avg. no. of layers, 1 ‑ 5

Sigma-Aldrich

900552

Graphene

Monolayer graphene film 1 cm x 1 cm on SiO2/Si substrate, avg. no. of layers, 1

Sigma-Aldrich

773700

Monolayer graphene film

Reduced graphene oxide

Sigma-Aldrich

777684

Reduced graphene oxide

Graphene nanoplatelets <2 μm particle size

Sigma-Aldrich

900407

Graphene nanoplatelets

Facile synthesis of mesoporous nitrogen-dopedgraphene: An efficient methanol?tolerantcathodiccatalystfor oxygen reductionreaction.
Conga H, et al.
Nano Energy, 3, 55-63 (2014)
Tao Hu et al.
Physical chemistry chemical physics : PCCP, 16(3), 1060-1066 (2013-11-30)
Chemical doping of nitrogen into graphene can significantly enhance the reversible capacity and cyclic stability of the graphene-based lithium ion battery (LIB) anodes, and first principles calculations based on density functional theory suggested that pyridinic-N shows stronger binding with Li
Frédéric Joucken et al.
Scientific reports, 5, 14564-14564 (2015-09-29)
Understanding the modification of the graphene's electronic structure upon doping is crucial for enlarging its potential applications. We present a study of nitrogen-doped graphene samples on SiC(000) combining angle-resolved photoelectron spectroscopy, scanning tunneling microscopy and spectroscopy and X-ray photoelectron spectroscopy

Artikel

Graphene and Other 2D Crystals for Rechargeable Batteries

Advanced technologies for energy conversion and storage are widely sought after for their potential to improve consumer and electronic device performance as well as for the prospect of reducing the societal and environmental impact of energy generation.

Recent Advances in Scalable Synthesis and Processing of Two-Dimensional Materials

Advances in scalable synthesis and processing of two-dimensional materials

Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..

Setzen Sie sich mit dem technischen Dienst in Verbindung.