Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes

被引：4
|
作者：
Ray, Sekhar Chandra [1 ]
机构：
[1] Univ South Africa, Coll Sci Engn & Technol, Dept Phys, Sci Campus,Private Bag X6, ZA-1710 Johannesburg, South Africa
来源：
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2016年 / 2016卷
基金：
新加坡国家研究基金会;
关键词：
GROWTH; ARRAY;
D O I：
10.1155/2016/7362131
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A comparative study has been made for the non-catalyst based few layer graphene (FLG) and Fe-catalyst based multiwall carbon nanotubes (MWCNTs). Magnetic and electronic properties of FLG and MWCNTs were studied using magnetic M-H hysteresis loops and synchrotron radiation based X-ray absorption fine structure spectroscopy measurements. Structural defects and electronic and bonding properties of FLG/MWCNTs have been studied using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS). The work functions of FLG and MWCNTs are 4.01 eV and 3.79 eV, respectively, obtained from UPS (He-I) spectra. UPS (He-II) results suggest that the density of states (DOS) of MWCNTs is higher than FLG and is consistent with Raman spectroscopy result that shows the defect of MWCNTs is higher than FLG. The magnetic coercivity (H-c) of the MWCNTs (similar to 750 Oe) is higher than FLG (similar to 85 Oe) which could be used for various technological magnetic applications.
引用
收藏
页数：7
相关论文
共 50 条
  • [11] The electronic properties of graphene and carbon nanotubes
    Tsuneya Ando
    NPG Asia Materials, 2009, 1 : 17 - 21
  • [12] Electronic properties of carbon nanotubes and graphene
    Brus, Louis
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2012, 244
  • [13] On the oxidation degree of few-layer graphene oxide sheets obtained from chemically oxidized multiwall carbon nanotubes
    Torres, D.
    Pinilla, J. L.
    Moliner, R.
    Suelves, I.
    CARBON, 2015, 81 : 405 - 417
  • [14] Intercalated multiwall carbon nanotubes with cobalt: structure and properties
    Ovsiienko, I., V
    Len, T. A.
    Matzui, L. Yu
    Le Normand, F.
    Tsaregradskaya, T. L.
    Saenko, G., V
    Spylka, D. O.
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2021, 718 (01) : 80 - 91
  • [15] Field emission properties of hybrid few-layer graphene-carbon nanotubes
    Qi, Jun Lei
    Zhang, Fu
    Zhang, Li Xia
    Cao, Jian
    Feng, Ji Cai
    MATERIALS RESEARCH EXPRESS, 2014, 1 (02):
  • [16] Magnetic properties of multiwall nanotubes
    Glenis, S
    Likodimos, V
    Guskos, N
    Lin, CL
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 : 1660 - 1661
  • [17] The electronic structure and magnetic properties of the chiral toroidal carbon nanotubes
    Zhang, ZH
    Peng, JC
    Chen, XH
    Zhang, H
    ACTA PHYSICA SINICA, 2001, 50 (06) : 1150 - 1156
  • [18] The electronic structure and magnetic properties of the chiral toroidal carbon nanotubes
    2001, Science Press (50):
  • [19] Effect of Covalent Chemistry on the Electronic Structure and Properties of Carbon Nanotubes and Graphene
    Bekyarova, Elena
    Sarkar, Santanu
    Wang, Feihu
    Itkis, Mikhail E.
    Kalinina, Irina
    Tian, Xiaojuan
    Haddon, Robert C.
    ACCOUNTS OF CHEMICAL RESEARCH, 2013, 46 (01) : 65 - 76
  • [20] Effect of covalent chemistry on the electronic structure and properties of graphene and carbon nanotubes
    Haddon, Robert C.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2013, 246
12345