Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes
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...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/7362131 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832555519841140736 |
|---|---|
| author | Sekhar Chandra Ray |
| author_facet | Sekhar Chandra Ray |
| author_sort | Sekhar Chandra Ray |
| collection | DOAJ |
| description | 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 (Hc) of the MWCNTs (~750 Oe) is higher than FLG (~85 Oe) which could be used for various technological magnetic applications. |
| format | Article |
| id | doaj-art-2dc4cc70649340cdb3f9f43c8cef1aa3 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2dc4cc70649340cdb3f9f43c8cef1aa32025-02-03T05:47:59ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/73621317362131Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon NanotubesSekhar Chandra Ray0Department of Physics, College of Science, Engineering and Technology, University of South Africa, Science Campus, Private Bag X6, Christiaan de Wet and Pioneer Avenue, Florida Park, Florida, Johannesburg 1710, South AfricaA 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 (Hc) of the MWCNTs (~750 Oe) is higher than FLG (~85 Oe) which could be used for various technological magnetic applications.http://dx.doi.org/10.1155/2016/7362131 |
| spellingShingle | Sekhar Chandra Ray Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes Advances in Materials Science and Engineering |
| title | Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes |
| title_full | Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes |
| title_fullStr | Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes |
| title_full_unstemmed | Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes |
| title_short | Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes |
| title_sort | comparison of electronic structure and magnetic properties of few layer graphene and multiwall carbon nanotubes |
| url | http://dx.doi.org/10.1155/2016/7362131 |
| work_keys_str_mv | AT sekharchandraray comparisonofelectronicstructureandmagneticpropertiesoffewlayergrapheneandmultiwallcarbonnanotubes |