Generation of hydrogen peroxide by reduction of oxygen in semihydrophobic trickle electrodes

[img]PDF - Authorized users only
Language: English
254Kb
Title:Generation of hydrogen peroxide by reduction of oxygen in semihydrophobic trickle electrodes
Creators:
Špalek, Otomar
Balogh, Karel
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 2, pp. 309-316

Abstract

The reduction of oxygen to hydrogen peroxide was studied in semihydrophobic trickle electrodes prepared from crushed graphite and teflonized carbon black. The potential of these electrodes was found markedly more positive and the peroxide current yields appreciably higher than for electrodes made of used crushed graphite. The reason for this is the higher surface area of the electrodes containing carbon black and occurrence of a three-phase interface in them. The relevant properties, i.e. electric resistance, electrolyte holdup, polarization curves for the oxygen reduction and pexide current yields, were also studied for trickle electrodes containing graphite felt. The electrochemical activity of electrodes made from untreated felt was found rather low but it increased several times when felt pretreated by oxidation was used.

Title:Generation of hydrogen peroxide by reduction of oxygen in semihydrophobic trickle electrodes
Creators:
Špalek, Otomar
Balogh, Karel
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:2
Page Range:pp. 309-316
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19910309UNSPECIFIED
ID Code:4951
Item Type:Article
Deposited On:22 Feb 2010 11:27
Last Modified:22 Feb 2010 10:27

Citation

Špalek, Otomar; Balogh, Karel (1991) Generation of hydrogen peroxide by reduction of oxygen in semihydrophobic trickle electrodes. Collection of Czechoslovak Chemical Communications, 56 (2). pp. 309-316. ISSN 0010-0765

Repository Staff Only: item control page