THE HETEROGENEOUS CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE IN HEAVY WATER

1940 ◽  
Vol 18b (3) ◽  
pp. 84-89 ◽  
Author(s):  
P. A. Giguère ◽  
O. Maass
Keyword(s):  
Hydrogen Peroxide ◽  
Alkaline Medium ◽  
Heavy Water ◽  
Catalytic Decomposition ◽  
Metallic Gold ◽  
Experimental Results ◽  
Ordinary Water ◽  
Heterogeneous Catalytic

The catalytic decomposition of hydrogen peroxide dissolved in heavy water, both on the surface of glass in alkaline medium and on metallic gold, was measured at 35 °C. The results, compared with those obtained under similar conditions for hydrogen peroxide in ordinary water, indicate that deuterium peroxide (D2O2) is much more stable than ordinary hydrogen peroxide towards such catalysts. The experimental results in both cases are of interest chiefly for comparison, and further investigations will be necessary before any sound conclusion can be drawn regarding the mechanism of the reactions involved.

Silver-Nafion coated cylindrical carbon fiber microelectrode for amperometric monitoring of hydrogen peroxide heterogeneous catalytic decomposition

2010 ◽  
Vol 165 (3) ◽  
pp. 813-818 ◽  
Author(s):  
Vladimir Halouzka ◽  
Petr Jakubec ◽  
Cenek Gregor ◽  
Dalibor Jancik ◽  
Kyriakos Papadopoulos ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Fiber ◽  
Catalytic Decomposition ◽  
Heterogeneous Catalytic ◽  
Carbon Fiber Microelectrode

Hydrogen peroxide decomposition on a two-component CuO-Cr2O3 catalyst

1988 ◽  
Vol 53 (8) ◽  
pp. 1636-1646 ◽  
Author(s):  
Viliam Múčka ◽  
Kamil Lang
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Activity ◽  
Extreme Values ◽  
Catalytic Properties ◽  
Active Components ◽  
Catalytic Systems ◽  
Heterogeneous Catalytic ◽  
Peroxide Decomposition ◽  
Two Component ◽  
Catalytically Active

Some physical and catalytic properties of the two-component copper(II)oxide-chromium(III)oxide catalyst with different content of both components were studied using the decomposition of the aqueous solution of hydrogen peroxide as a testing reaction. It has been found that along to both basic components, the system under study contains also the spinel structure CuCr2O4, chromate washable by water and hexavalent ions of chromium unwashable by water. The soluble chromate is catalytically active. During the first period of the reaction the equilibrium is being established in both homogeneous and heterogeneous catalytic systems. The catalytic activity as well as the specific surface area of the washed solid is a non-monotonous function of its composition. It seems highly probable that the extreme values of both these quantities are not connected with the detected admixtures in the catalytic system. The system under study is very insensitive with regard to the applied doses of gamma radiation. Its catalytic properties are changed rather significantly after the thermal treatment and particularly after the partial reduction to low degree by hydrogen. The observed changes of the catalytic activity of the system under study are very probably in connection with the changes of the valence state of the catalytically active components of the catalyst.

Dual- vs single-active site mechanism in the catalytic decomposition of hydrogen peroxide

1978 ◽  
Vol 40 (6) ◽  
pp. 1277-1278 ◽  
Author(s):  
Mario Barteri ◽  
Marcello Farinella ◽  
Basilio Pispisa
Keyword(s):  
Hydrogen Peroxide ◽  
Active Site ◽  
Catalytic Decomposition
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