Transmission electron microscopy study of core-shell metal-oxide structure in nanoparticles of Ni and Fe

2000 ◽  
Author(s):  
Yuen-shan Kwok
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Metal Oxide ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Core Shell ◽  
Transmission Electron Microscopy Study ◽  
Oxide Structure ◽  
Transmission Electron

Synthesis, Characterisation, and Conductive Superparamagnetism Studies of γ-Fe2O3/Polyaniline-Levodopa Composites

2012 ◽  
Vol 3 (1) ◽  
pp. 1-12
Author(s):  
Rong Tang ◽  
Min Liu ◽  
Jinqing Kan
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Microscopy Study ◽  
Ammonium Persulfate ◽  
Electron Microscopy Study ◽  
Core Shell ◽  
Transmission Electron Microscopy Study ◽  
Pani Chain ◽  
Chemotherapy Drugs ◽  
Transmission Electron

γ-Fe2O3/polyaniline–levodopa (γ-Fe2O3/PANI–levodopa) composites were prepared using γ-Fe2O3 and levodopa as dopants and ammonium persulfate as oxidant. The composites were characterised by Fourier transform infrared spectra and confirmed that the γ-Fe2O3 and levodopa were doped into the PANI chain. A transmission electron microscopy study revealed that the size of the γ-Fe2O3 was of the order of 10 nm, whereas the composite size was of the order of 25 nm; furthermore, it was observed that the PANI–levodopa chain was intercalated to form a core shell of γ-Fe2O3. Cyclic voltammetry and magnetisation studies showed that the γ-Fe2O3/PANI–levodopa composites had both electrochemical activity and conductive superparamagnetism, so these composites may be well suited for chemotherapy drugs.

A transmission electron microscopy study of lattice defects in Mn3O4 hausmannite

1994 ◽  
Vol 70 (5) ◽  
pp. 1077-1094 ◽  
Author(s):  
J. J. Couderc ◽  
S. Fritsch ◽  
M. Brieu ◽  
G. Vanderschaeve ◽  
M. Fagot ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Lattice Defects ◽  
Transmission Electron Microscopy Study ◽  
Transmission Electron
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