Issue 113, 2015
From the journal:

RSC Advances

Ferromagnetism of three-dimensional graphene framework†

Sai Qin,a   Pingping Sun,a   Qitao Di,b   Shuang Zhou,a   Caiping Yanga  and  Qingyu Xu*acd  

* Corresponding authors

a Department of Physics & Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 211189, China
E-mail: xuqingyu@seu.edu.cn

b Department of Materials Science and Engineering, Nanjing University, Nanjing 210008, China

c National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China

d Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China

Abstract

A three-dimensional graphene framework (3DGF) was synthesized via hydrothermal growth of graphene oxide (GO) suspension. The structure of 3DGF was characterized by scanning electron microscope, Raman spectroscopy and X-ray photoelectron spectroscopy. The reduction of GO with increased defect density has been confirmed, promoting the formation of 3D pore structure. The magnetic properties of 3DGF were investigated experimentally. Pure diamagnetism was observed in GO, while weak ferromagnetism was observed in 3DGF with saturated ferromagnetic magnetization of 0.005 emu gāˆ’1 at 300 K. The observed ferromagnetism has been attributed to the presence of increased concentration of sp3-type hydroxyl groups attached on the basal plane at the interconnected 3D porous network structure of 3DGF.

Graphical abstract: Ferromagnetism of three-dimensional graphene framework

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C5RA14377B
Article type
Paper
Submitted
21 Jul 2015
Accepted
23 Oct 2015
First published
23 Oct 2015

RSC Adv., 2015,5, 92899-92904

Permissions

Request permissions

Ferromagnetism of three-dimensional graphene framework

S. Qin, P. Sun, Q. Di, S. Zhou, C. Yang and Q. Xu, RSC Adv., 2015, 5, 92899 DOI: 10.1039/C5RA14377B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements