A STUDY OF THE DECOMPOSITION REACTION OF METHANOL OVER Ru FIELD EMITTER SURFACES

1986 ◽  
Vol 47 (C7) ◽  
pp. C7-435-C7-440
Author(s):  
G.-K. CHUAH ◽  
N. KRUSE ◽  
G. ABEND ◽  
J. H. BLOCK
Keyword(s):  
Decomposition Reaction ◽  
Field Emitter

Design of a Field-Emission Gun for the Phillips CM20/STEM microscope

1990 ◽  
Vol 48 (2) ◽  
pp. 100-101
Author(s):  
P.M. Mul ◽  
B.J.M. Bormans ◽  
L. Schaap
Keyword(s):  
High Resolution ◽  
Field Emission ◽  
Analytical Electron Microscopy ◽  
Emission Region ◽  
Attractive Alternative ◽  
Electron Holography ◽  
Field Emitter ◽  
Field Emitters ◽  
Resolution Electron ◽  
High Resolution Tem

The first Field Emission Guns (FEG) on TEM/STEM instruments were introduced by Philips in 1977. In the past decade these EM400-series microscopes have been very successful, especially in analytical electron microscopy, where the high currents in small probes are particularly suitable. In High Resolution Electron Holography, the high coherence of the FEG has made it possible to approach atomic resolution.Most of these TEM/STEM systems are based on a cold field emitter (CFE). There are, however, a number of disadvantages to CFE’s, because of their very small emission region: the maximum current is limited (a strong disadvantage for high-resolution TEM imaging) and the emission is unstable, requiring special measures to reduce the strong FEG-induced noise. Thermal field emitters (TFE), i.e. a zirconiated field emitter source operating in the thermal or Schottky mode, have been shown to be a viable and attractive alternative to CFE’s. TFE’s have larger emission regions, providing much higher maximum currents, better stability, and reduced sensitivity to vacuum conditions as well as mechanical and electrical interferences.

STUDY OF LANTHANUM ON TUNGSTEN FIELD EMITTER

1986 ◽  
Vol 47 (C7) ◽  
pp. C7-101-C7-103 ◽  
Author(s):  
G. KOZLOWSKI ◽  
W. SWIECH ◽  
S. SURMA
Keyword(s):  
Field Emitter

O-O bond activation with cobalt(II)-ethylenediamine complexes in ion-exchange resins

1980 ◽  
Vol 45 (6) ◽  
pp. 1780-1784 ◽  
Author(s):  
Atanas Andreev ◽  
Lachezar Prahov ◽  
Dimitar Shopov
Keyword(s):  
Ion Exchange ◽  
Bond Activation ◽  
Catalytic Properties ◽  
Decomposition Reaction ◽  
Ion Exchange Resins ◽  
Hydrogen Peroxide Decomposition ◽  
Surface Complexes ◽  
Peroxide Decomposition ◽  
Epr Parameters ◽  
Exchange Resins

The formation of Oxygen paramagnetic adducts of Co(II) containing ion-exchange resins in the presence of adsorbed ethylenediamine has been found. The EPR parameters of a complex of the type Co(III) (en)2O-2 and of O-2 species formed in the presence of Co(en)2+3 have been described. The catalytic properties of Co-ethylenediamine surface complexes with respect to the hydrogen peroxide decomposition reaction have been investigated and a probable mechanism has been suggested.

Effect of Ni incorporation in cobalt oxide lattice on carbon formation during ethanol decomposition reaction

2019 ◽  
Vol 254 ◽  
pp. 300-311 ◽  
Author(s):  
Anchu Ashok ◽  
Anand Kumar ◽  
Janarthanan Ponraj ◽  
Said A. Mansour ◽  
Faris Tarlochan
Keyword(s):  
Cobalt Oxide ◽  
Decomposition Reaction ◽  
Carbon Formation ◽  
Ethanol Decomposition

Arrays Of Gated Field-emitter Cones Having 0.32-μm Tip-to-tip Spacings

2005 ◽  
Author(s):  
C.O. Bozler ◽  
C.T. Harris ◽  
S. Rabe ◽  
D.D. Rathman ◽  
W.D. Goodhue ◽  
...  
Keyword(s):  
Field Emitter
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