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Exploration of the active center structure of nitrogen-doped graphene-based catalysts for oxygen reduction reaction

Author(s): Linfei Lai , Jeffrey R. Potts , Da Zhan , Liang Wang , Chee Kok Poh , Chunhua Tang , Hao Gong , Zexiang Shen , Jianyi Lin , Rodney S. Ruoff

Publication date Created: 2012

Publication date (Print): 2012

Journal: Energy & Environmental Science

Publisher: Royal Society of Chemistry (RSC)

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Structural evolution during the reduction of chemically derived graphene oxide.

Akbar Bagri, Cecilia Mattevi, Muge Acik … (2010)

The excellent electrical, optical and mechanical properties of graphene have driven the search to find methods for its large-scale production, but established procedures (such as mechanical exfoliation or chemical vapour deposition) are not ideal for the manufacture of processable graphene sheets. An alternative method is the reduction of graphene oxide, a material that shares the same atomically thin structural framework as graphene, but bears oxygen-containing functional groups. Here we use molecular dynamics simulations to study the atomistic structure of progressively reduced graphene oxide. The chemical changes of oxygen-containing functional groups on the annealing of graphene oxide are elucidated and the simulations reveal the formation of highly stable carbonyl and ether groups that hinder its complete reduction to graphene. The calculations are supported by infrared and X-ray photoelectron spectroscopy measurements. Finally, more effective reduction treatments to improve the reduction of graphene oxide are proposed.

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Nitrogen-Doped Ordered Mesoporous Graphitic Arrays with High Electrocatalytic Activity for Oxygen Reduction

Ruili Liu, Dongqing Wu, Xinliang Feng … (2010)

0 comments Cited 346 times – based on 0 reviews      Review now

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High oxygen-reduction activity and durability of nitrogen-doped graphene

Dongsheng Geng, Ying Chen, Yougui Chen … (2011)

0 comments Cited 299 times – based on 0 reviews      Review now

Author and article information

Journal

Journal ID (publisher-id): EESNBY

Title: Energy & Environmental Science

Abbreviated Title: Energy Environ. Sci.

Publisher: Royal Society of Chemistry (RSC)

ISSN (Print): 1754-5692

ISSN (Electronic): 1754-5706

Publication date Created: 2012

Publication date (Print): 2012

Volume: 5

Issue: 7

Page: 7936

Article

DOI: 10.1039/c2ee21802j

SO-VID: 16bd73a7-4910-47c2-a278-8300114d96c6

Copyright © © 2012

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