Preparation of hydrogen peroxide by cathodic reduction of oxygen in porous electrodes made of different carbonaceous materials

1977 ◽  
Vol 42 (3) ◽  
pp. 952-959 ◽  
Author(s):  
O. Špalek ◽  
J. Balej ◽  
K. Balogh
Keyword(s):  
Hydrogen Peroxide ◽  
Porous Electrodes ◽  
Cathodic Reduction ◽  
Carbonaceous Materials

Relation between the activity of electrodes from various carbonaceous meterials for reduction of oxygen to hydrogen peroxide and concentration of their paramagnetic centers

1980 ◽  
Vol 45 (12) ◽  
pp. 3249-3253 ◽  
Author(s):  
Jan Balej ◽  
Karel Balogh ◽  
Pavel Stopka ◽  
Otomar Špalek
Keyword(s):  
Hydrogen Peroxide ◽  
Alkali Metal ◽  
Porous Electrodes ◽  
Substantial Decrease ◽  
Current Yield ◽  
Paramagnetic Centers ◽  
Carbonaceous Materials

The current yield of hydrogen peroxide during cathodic readuction of oxygen in porous electrodes from various carbonaceous materials is the lower the higher is the number of paramagnetic centers in these materials. A substantial decrease in the concentration of paramagnetic centers by heating to 900 °C in vacuum is only temporary, whereas by heating with alkali metal sulphides it is practically permanent.

Inhibition Effects in the Electrochemical Reduction of Hydrogen Peroxide on Sodium Tungsten Bronzes

1974 ◽  
Vol 52 (14) ◽  
pp. 2542-2545 ◽  
Author(s):  
Jean-Paul Randin
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Reduction ◽  
Cathodic Reduction ◽  
Inhibition Effect ◽  
Surface Sites ◽  
Sodium Tungsten ◽  
Cathodic Side ◽  
Current Maximum ◽  
Current Potential

An inhibition effect has been observed during the cathodic reduction of hydrogen peroxide on sodium tungsten bronzes (NaxWO3). The effect is explained as competition for available surface sites between hydrogen peroxide and protons. The competing reaction is believed to be the formation of hydrogen bronze (NaxHzWO3). The experimental current–potential relationships fit with the theoretical curves calculated under Langmuirian conditions of adsorption to a point 30–40 mV on the cathodic side of the current maximum.

Removal of COD and color from textile industrial effluents using different carbonaceous materials modified with acids, salts, and hydrogen peroxide

2020 ◽  
Vol 184 ◽  
pp. 1-14
Author(s):  
Juana Díaz de León Chiquito ◽  
Rigoberto Tovar Gómez ◽  
Ma. del Rosario Moreno Virgen ◽  
Carlos Javier Durán Valle ◽  
María Ana Pérez Cruz
Keyword(s):  
Hydrogen Peroxide ◽  
Industrial Effluents ◽  
Carbonaceous Materials

Amperometric determination of hydrogen peroxide using a copper microelectrode

2014 ◽  
Vol 6 (7) ◽  
pp. 2112-2116 ◽  
Author(s):  
L. M. F. Dantas ◽  
P. S. Castro ◽  
R. C. Peña ◽  
M. Bertotti
Keyword(s):  
Hydrogen Peroxide ◽  
Phosphate Buffer ◽  
Cathodic Reduction ◽  
Amperometric Determination ◽  
Buffer Solutions

The cathodic reduction of hydrogen peroxide at copper microelectrodes was investigated in phosphate buffer solutions.

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