Issue 24, 2018

Temperature-tuned ferromagnetism in hydrogenated multilayer graphene

Abstract

Improving the ferromagnetism properties of pure carbon-based materials is extremely important for their application in spintronics. Hydrogenation of graphene is an effective way to induce magnetic moment into graphene with the advantage of reversibility. However, little experimental work has been done to prove the effect of hydrogen on the magnetic properties of graphene so far, except for systems containing a large amount of oxygen or plasma-induced vacancy which complicated the magnetic origin. Here we report a facile electrochemical cathodic method to generate hydrogenated multilayer graphene or few-layer graphite using graphite powder as the raw material, and observed hydrogen-induced ferromagnetism in samples annealed at different temperatures. The observed results suggest that ferromagnetism of hydrogenated multilayer graphene can be tuned by high temperature treatment, which is attributed to a changeable relative amount of hydrogen atoms chemisorpted on two different sublattices during thermal treatment.

Graphical abstract: Temperature-tuned ferromagnetism in hydrogenated multilayer graphene

Supplementary files

Article information

Article type
Paper
Submitted
27 Mar 2018
Accepted
03 Apr 2018
First published
09 Apr 2018
This article is Open Access
Creative Commons BY license

RSC Adv., 2018,8, 13148-13153

Temperature-tuned ferromagnetism in hydrogenated multilayer graphene

M. Zhao, H. Xiao, S. Chen, T. Hu, J. Jia and H. Wu, RSC Adv., 2018, 8, 13148 DOI: 10.1039/C8RA02648C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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