Issue 8, 2015

Directly bonded hybrid of graphene nanoplatelets and fullerene: facile solid-state mechanochemical synthesis and application as carbon-based electrocatalyst for oxygen reduction reaction

Abstract

Using a facile solid-state mechanochemical method by ball milling, we successfully synthesized the first directly bonded graphene–C60 hybrid, for which LiOH is found to play a crucial role as the catalyst. The hybrid structure of graphene–C60 is confirmed by FTIR, Raman, XRD and XPS characterizations, and its conformation is proposed, featuring the direct bonding of graphene nanoplatelets and C60via two C–C single bonds. SEM measurement suggests that severe edge distortions occur for graphene–C60 hybrid, and HR-TEM study indicate the covalent attaching of C60 molecules onto the edge of graphene nanoplatelets. The graphene–C60 hybrid is applied as a carbon-based electrocatalyst toward oxygen reduction reaction (ORR), showing improved ORR electrocatalytic activity than the pristine graphite.

Graphical abstract: Directly bonded hybrid of graphene nanoplatelets and fullerene: facile solid-state mechanochemical synthesis and application as carbon-based electrocatalyst for oxygen reduction reaction

Supplementary files

Article information

Article type
Paper
Submitted
13 Oct 2014
Accepted
24 Nov 2014
First published
24 Nov 2014

J. Mater. Chem. A, 2015,3, 4139-4146

Directly bonded hybrid of graphene nanoplatelets and fullerene: facile solid-state mechanochemical synthesis and application as carbon-based electrocatalyst for oxygen reduction reaction

J. Guan, X. Chen, T. Wei, F. Liu, S. Wang, Q. Yang, Y. Lu and S. Yang, J. Mater. Chem. A, 2015, 3, 4139 DOI: 10.1039/C4TA05456C

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