Probing the structures and chemical bonding of boron-boronyl clusters using photoelectron spectroscopy and computational chemistry: B4(BO)n−(n= 1–3)

2012 ◽  
Vol 137 (4) ◽  
pp. 044307 ◽  
Author(s):  
Qiang Chen ◽  
Hua-Jin Zhai ◽  
Si-Dian Li ◽  
Lai-Sheng Wang
Keyword(s):  
Computational Chemistry ◽  
Chemical Bonding ◽  
Photoelectron Spectroscopy

COMPOSITION AND NANOHARDNESS OF SiC FILMS DEPOSITED BY ELECTRON BEAM PHYSICAL VAPOR DEPOSITION

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1910-1915 ◽  
Author(s):  
MIN TENG ◽  
XIAODONG HE ◽  
YUE SUN
Keyword(s):  
Electron Beam ◽  
Chemical Bonding ◽  
Vapor Deposition ◽  
Photoelectron Spectroscopy ◽  
Physical Vapor Deposition ◽  
Current Intensity ◽  
X Ray ◽  
Deposited Films ◽  
Sic Films

SiC films with a quantity of carbon and silicon were obtained by electron beam physical vapor deposition (EB-PVD) from a sintered SiC target with different current intensity of EB. The X-ray photoelectron spectroscopy (XPS) was used for characterization of chemical bonding states of C and Si elements in SiC films in order to study the influence of current intensity of EB on the compositions in the deposited films. At the same time, the nanohardness of the deposited films was investigated.

Soft X-ray Photoelectron Spectroscopy on Chemical Bonding States of Boron Doped in Si Fin Structures

2011 ◽  
Author(s):  
Y. Miyata ◽  
J. Kanehara ◽  
H. Nohira ◽  
Y. Izumi ◽  
T. Muro ◽  
...  
Keyword(s):  
Chemical Bonding ◽  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Boron Doped

Anion photoelectron spectroscopy and chemical bonding of ThO2− and ThO3−

2018 ◽  
Vol 148 (24) ◽  
pp. 244304 ◽  
Author(s):  
Yanli Li ◽  
Jinghan Zou ◽  
Xiao-Gen Xiong ◽  
Hua Xie ◽  
Zichao Tang ◽  
...  
Keyword(s):  
Chemical Bonding ◽  
Photoelectron Spectroscopy ◽  
Anion Photoelectron Spectroscopy

scholarly journals Chemical Bonding Information from Photoelectron Spectroscopy

Science ◽  
1967 ◽  
Vol 157 (3796) ◽  
pp. 1571-1573 ◽  
Author(s):  
C. S. Fadley ◽  
S. B. M. Hagstrom ◽  
J. M. Hollander ◽  
M. P. Klein ◽  
D. A. Shirley
Keyword(s):  
Chemical Bonding ◽  
Photoelectron Spectroscopy

scholarly journals Structure and Ferromagnetism in Carbon Nanofibers from PAN/PVP

2021 ◽  
Author(s):  
Suminya - Teeta ◽  
Somchai - Sonsupap ◽  
Ratchaneekorn - Wanchanthuek ◽  
Santi - Maensiri ◽  
Narong - Chanlek ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Carbon Nanofibers ◽  
Chemical Bonding ◽  
Photoelectron Spectroscopy ◽  
Room Temperature ◽  
New Technologies ◽  
Room Temperature Ferromagnetism ◽  
Weight Ratio ◽  
Average Diameter ◽  
X Ray

Abstract We report on the room-temperature ferromagnetism in carbon nanofibers. Carbon nanofibers were fabricated using sequential electrospinning of polyacrylonitrile (PAN) and polyvinylpyrrolidone (PVP). The morphologies, crystal structures, chemical bonding states and magnetic properties were characterized for three different polyacrylonitrile (PAN) to polyvinylpyrrolidone (PVP) weight ratios (10:0, 7:3 and 6:4) of PAN/PVP. The as-spun PAN/PVP were carbonized in three steps; stabilization, carbonization and activation at 800 ºC to obtain carbon nanofibers. The morphology and structure of the carbon nanofibers (CNFs) were completely characterized by field emission scanning electron microscopy (FE-SEM), x-ray diffraction (XRD) and Raman spectroscopy. The elemental composition and the chemical bonding of CNFs were analyzed by x-ray photoelectron spectroscopy (XPS), the magnetic properties of CNFs were measured by vibrating sample magnetometer (VSM) at room-temperature. XRD patterns showed the phase of amorphous carbon structure. The average diameter sizes of the carbon nanofibers ranged from 340 to 484 nm. Raman analysis was used to determine the carbon qualities in the samples by the numbers of sp3/sp2 hybridized atoms. Chemical analysis with XPS indicated that there were no magnetic contaminants in the samples. The PAN/PVP weight ratio of 6:4 showed ferromagnetic carbon nanofibers with the highest specific magnetization as ~144.2 memu/g at 300 K. These results inspire us to further research the potential of carbon materials, as a completely new class of magnetic devices. This will aid the development of new technologies in the near future.

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