The electro-deoxidation of porous titanium dioxide precursors in molten calcium chloride under cathodic potential control

2009 ◽  
Vol 54 (14) ◽  
pp. 3819-3829 ◽  
Author(s):  
C. Schwandt ◽  
D.T.L. Alexander ◽  
D.J. Fray
Keyword(s):  
Titanium Dioxide ◽  
Calcium Chloride ◽  
Porous Titanium ◽  
Cathodic Potential ◽  
Potential Control

The Electrochemical Reduction of Chromium Sesquioxide in Molten Calcium Chloride under Cathodic Potential Control

2007 ◽  
Vol 62 (10-11) ◽  
pp. 655-670 ◽  
Author(s):  
Carsten Schwandt ◽  
Derek J. Fray
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction ◽  
Calcium Chloride ◽  
Calcium Oxide ◽  
Reference Electrode ◽  
Graphite Anode ◽  
Cathodic Potential ◽  
Potential Control ◽  
Calcium Metal ◽  
The Stability

Electrochemical polarization and reduction experiments are reported which were performed with a three-terminal cell and a molten salt electrolyte consisting of calcium chloride with additions of calcium oxide. Employing a metal cathode, a graphite anode and a pseudo-reference electrode also made from graphite, polarization measurements were carried out with the aim to validate the performance of the pseudo-reference electrode and to assess the stability of the electrolyte. Using a chromium sesquioxide cathode in conjunction with a graphite anode and a graphite pseudo-reference electrode, electrochemical reduction experiments were conducted under potentiostatic control. The key results are: a graphite pseudo-reference electrode has been shown to be appropriate in the present type of molten salt electrochemical experiments that take place on a time scale of many hours; the conversion of chromium oxide into chromium metal has been accomplished under cathodic potential control and in the absence of calcium metal deposition; a significant amount of calcium oxide in the calcium chloride has been found necessary to preclude anodic chlorine formation throughout the entire experiment; a considerable overpotential has been identified at the anode.

Voltammetry of Titanium Dioxide in Molten Calcium Chloride at 900°C

2005 ◽  
Vol 152 (3) ◽  
pp. E104 ◽  
Author(s):  
K. Dring ◽  
R. Dashwood ◽  
D. Inman
Keyword(s):  
Titanium Dioxide ◽  
Calcium Chloride

Surface modification of a novel porous titanium dioxide/glass composite

2003 ◽  
Vol 34 (12) ◽  
pp. 1058-1063
Author(s):  
H. J. Erli ◽  
M. von Walter ◽  
C. Ragoß ◽  
G. C. M. Steffens ◽  
O. Paar ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Surface Modification ◽  
Porous Titanium ◽  
Glass Composite

Studies on Effect Factors of Porous Titanium Dioxide Film Degrading Azo Dyes

2012 ◽  
Vol 531 ◽  
pp. 403-406 ◽  
Author(s):  
Sheng Min Sun
Keyword(s):  
Titanium Dioxide ◽  
Ph Value ◽  
Uv Light ◽  
Pure Titanium ◽  
Degradation Process ◽  
Porous Titanium ◽  
Titanium Dioxide Film ◽  
Effect Factors ◽  
Micro Arc Oxidation ◽  
Dioxide Film

In pure titanium body, through the method of micro-arc oxidation (MAO) on the surface of porous titanium dioxide film and study on factors of methyl orange in the light influence of catalytic degradation process, the results show that: with uv light for the source, pH value of 5, micro-arc oxidation voltage is 400 V, the catalytic activity of porous titanium dioxide film was the highest.

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