Please use this identifier to cite or link to this item:
Title: Probing the catalytic activity of porous graphene oxide and the origin of this behaviour
Authors: Su, C.
Acik, M.
Takai, K.
Lu, J.
Hao, S.-J.
Zheng, Y. 
Wu, P.
Bao, Q. 
Enoki, T.
Chabal, Y.J.
Loh, K.P. 
Issue Date: 2012
Source: Su, C., Acik, M., Takai, K., Lu, J., Hao, S.-J., Zheng, Y., Wu, P., Bao, Q., Enoki, T., Chabal, Y.J., Loh, K.P. (2012). Probing the catalytic activity of porous graphene oxide and the origin of this behaviour. Nature Communications 3 : -. ScholarBank@NUS Repository.
Abstract: Graphene oxide, a two-dimensional aromatic scaffold decorated by oxygen-containing functional groups, possesses rich chemical properties and may present a green alternative to precious metal catalysts. Graphene oxide-based carbocatalysis has recently been demonstrated for aerobic oxidative reactions. However, its widespread application is hindered by the need for high catalyst loadings. Here we report a simple chemical treatment that can create and enlarge the defects in graphene oxide and impart on it enhanced catalytic activities for the oxidative coupling of amines to imines (up to 98% yield at 5 wt% catalyst loading, under solvent-free, open-air conditions). This study examines the origin of the enhanced catalytic activity, which can be linked to the synergistic effect of carboxylic acid groups and unpaired electrons at the edge defects. The discovery of a simple chemical processing step to synthesize highly active graphene oxide allows the premise of industrial-scale carbocatalysis to be explored. © 2012 Macmillan Publishers Limited. All rights reserved.
Source Title: Nature Communications
ISSN: 20411723
DOI: 10.1038/ncomms2315
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Mar 6, 2018


checked on Jan 23, 2018

Page view(s)

checked on Mar 11, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.