Issue 28, 2012
From the journal:

Journal of Materials Chemistry

The effect of reduced graphene oxide addition on the superconductivity of MgB2

K. S. B. De Silva,*a   S. Gambhir,*b   X. L. Wang,a   X. Xu,a   W. X. Li,a   D. L. Officer,b   D. Wexler,a   G. G. Wallaceb  and  S. X. Doua  

* Corresponding authors

a Institute for Superconducting and Electronic Materials, University of Wollongong, Northfields Avenue, Wollongong, New South Wales, Australia
E-mail: ksbds664@uowmail.edu.au

b ARC Centre of Excellence for Electromaterials Science and Intelligent Polymer Research Institute, University of Wollongong, Northfields Avenue, Wollongong, New South Wales, Australia
E-mail: sanjeev@uow.edu.au

Abstract

Reduced graphene oxide (rGO) and highly reduced chemically converted graphene (rCCG) samples were prepared under different processing conditions and were doped into MgB2 by a diffusion process at 800 °C for 10 hours. It was demonstrated that a small addition rCCG can significantly improve the superconducting properties of MgB2. Doping of MgB2 with 1 mol% of rCCG resulted in a Jc of 5.45 × 105 A cm−2 at 20 K in self-fields, which is nearly 32% improvement over that of the undoped sample. This is a significant improvement as most carbon sources adversely affect the Jc performance at the zero field.

Graphical abstract: The effect of reduced graphene oxide addition on the superconductivity of MgB2

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Article information

DOI
https://doi.org/10.1039/C2JM30323J
Article type
Paper
Submitted
17 Jan 2012
Accepted
09 May 2012
First published
09 May 2012

J. Mater. Chem., 2012,22, 13941-13946

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The effect of reduced graphene oxide addition on the superconductivity of MgB2

K. S. B. De Silva, S. Gambhir, X. L. Wang, X. Xu, W. X. Li, D. L. Officer, D. Wexler, G. G. Wallace and S. X. Dou, J. Mater. Chem., 2012, 22, 13941 DOI: 10.1039/C2JM30323J

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