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Issue 29, 2013

Three-dimensional B,N-doped graphene foam as a metal-free catalyst for oxygen reduction reaction

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Abstract

Using a modified chemical vapor deposition (CVD) method, we have prepared a class of new graphene foams (GFs) doped with nitrogen, boron or both. Nitrogen-doped graphene foams (N-GFs) with a nitrogen doping level of 3.1 atom% were prepared by CVD of CH4 in the presence of NH3 while boron-doped graphene foams (B-GFs) with a boron doping level of 2.1 atom% were produced by using toluene and triethyl borate as a carbon and a boron source. On the other hand, graphene foams co-doped with nitrogen (4.5 atom%) and boron (3 atom%) (BN-GFs) were prepared by CVD using melamine diborate as the precursor. In all cases, scanning electron microscope (SEM) images revealed well-defined foam-like microstructures, while electrochemical measurements showed much higher electrocatalytic activities toward oxygen reduction reaction for the doped graphene foams than their undoped counterparts.

Graphical abstract: Three-dimensional B,N-doped graphene foam as a metal-free catalyst for oxygen reduction reaction

Supplementary files

Article information


Submitted
08 May 2013
Accepted
09 May 2013
First published
10 May 2013

Phys. Chem. Chem. Phys., 2013,15, 12220-12226
Article type
Paper

Three-dimensional B,N-doped graphene foam as a metal-free catalyst for oxygen reduction reaction

Y. Xue, D. Yu, L. Dai, R. Wang, D. Li, A. Roy, F. Lu, H. Chen, Y. Liu and J. Qu, Phys. Chem. Chem. Phys., 2013, 15, 12220 DOI: 10.1039/C3CP51942B

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