scholarly journals Influence of solution properties and gas addition on hydrogen peroxide production by a novel plasma source

2021 ◽  
Vol 7 (3) ◽  
pp. 65-70
Author(s):  
Zdenka Kozáková ◽  
František Krčma ◽  
Aneta Možíšová ◽  
Anastasia Durrová
Keyword(s):  
Hydrogen Peroxide ◽  
Flow Rate ◽  
Plasma Source ◽  
Electrolyte Solutions ◽  
Oxygen Flow Rate ◽  
Solution Properties ◽  
Plasma Region ◽  
Hydrogen Peroxide Production ◽  
Ph Values ◽  
Solution Conductivity

The paper evaluates concentration of hydrogen peroxide produced by a novel pin-hole plasma source in electrolyte solutions with or without gas addition. An effective production rate of hydrogen peroxide is decreased by the increased argon as well as oxygen flow rate through the plasma region. Further, it is enhanced by higher solution conductivity while it is decreased in the strongly basic conditions with the highest pH values.

scholarly journals Removal of Polyvinyl Alcohol Using Photoelectrochemical Oxidation Processes Based on Hydrogen Peroxide Electrogeneration

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Kai-Yu Huang ◽  
Chih-Ta Wang ◽  
Wei-Lung Chou ◽  
Chi-Min Shu
Keyword(s):  
Hydrogen Peroxide ◽  
Light Intensity ◽  
Removal Efficiency ◽  
Flow Rate ◽  
Current Density ◽  
Uv Light ◽  
Supporting Electrolyte ◽  
Oxygen Flow Rate ◽  
Oxygen Flow ◽  
Solution Ph

This study investigates the removal efficiency of PVA from aqueous solutions using UV irradiation in combination with the production of electrogenerated hydrogen peroxide (H2O2) at a polyacrylonitrile-based activated carbon fiber (ACF) cathode. Three cathode materials (i.e., platinum, graphite, and ACF) were fed with oxygen and used for the electrogeneration of H2O2. The amount of electrogenerated H2O2produced using the ACF cathode was five times greater than that generated using the graphite cathode and nearly 24 times greater than that from platinum cathode. Several parameters were evaluated to characterize the H2O2electrogeneration, such as current density, oxygen flow rate, solution pH, and the supporting electrolyte used. The optimum current density, oxygen flow rate, solution pH, and supporting electrolyte composition were found to be 10 mA cm−2, 500 cm3 min−1, pH 3, and Na2SO4, respectively. The PVA removal efficiencies were achieved under these conditions 3%, 16%, and 86% using UV, H2O2electrogeneration, and UV/H2O2electrogeneration, respectively. A UV light intensity of 0.6 mW cm−2was found to produce optimal PVA removal efficiency in the present study. A simple kinetic model was proposed which confirmed pseudo-first-order reaction. Reaction rate constant (kap) was found to depend on the UV light intensity.

Photoelectrochemical Hydrogen Peroxide Production from Water on a WO3/BiVO4Photoanode and from O2on an Au Cathode Without External Bias

2017 ◽  
Vol 12 (10) ◽  
pp. 1111-1119 ◽  
Author(s):  
Kojiro Fuku ◽  
Yuta Miyase ◽  
Yugo Miseki ◽  
Takashi Funaki ◽  
Takahiro Gunji ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Hydrogen Peroxide Production ◽  
External Bias

Changes in oxygen tension affect cardiac mitochondrial respiration rate via changes in the rate of mitochondrial hydrogen peroxide production

2009 ◽  
Vol 47 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Carla A. Di Maria ◽  
Marie A. Bogoyevitch ◽  
Douglas J. McKitrick ◽  
Leonard F. Arnolda ◽  
Livia C. Hool ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxygen Tension ◽  
Respiration Rate ◽  
Mitochondrial Respiration ◽  
Hydrogen Peroxide Production
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