Novel Gas Diffusion Electrode System for Effective Production of Hydrogen Peroxide

2006 ◽  
Vol 22 (07) ◽  
pp. 883-887
Author(s):  
YU Qing-Hong ◽  
◽  
◽  
ZHOU Ming-Hua ◽  
LEI Le-Cheng
Keyword(s):  
Hydrogen Peroxide ◽  
Gas Diffusion ◽  
Electrode System ◽  
Gas Diffusion Electrode ◽  
Production Of Hydrogen

Novel Gas Diffusion Electrode System for Effective Production of Hydrogen Peroxide

2014 ◽  
Vol 496-500 ◽  
pp. 159-162
Author(s):  
Yan Hou ◽  
Fan Gong Kong ◽  
Shou Juan Wang ◽  
Gui Hua Yang
Keyword(s):  
Hydrogen Peroxide ◽  
Calcination Temperature ◽  
Current Density ◽  
Waste Water Treatment ◽  
Gas Diffusion ◽  
Electrode System ◽  
Gas Diffusion Electrode ◽  
Mass Ratio ◽  
Pulp Bleaching ◽  
Production Of Hydrogen

Hydrogen peroxide production via cathodic reduction of oxygen on self-made gas diffusion electrode was investigated in an undivided electrochemical system. The effects of mass ratio between graphite and PTFE in cathode, the calcination temperature, current density, pH, and plate distance on hydrogen peroxide generation were discussed. The results showed that the self-made gas diffusion cathode had high catalyze capacity for production of hydrogen peroxide using cathodic oxygen-reducing reaction. The hydrogen peroxide concentration could reach 80.52 mg·L- 1 within 2 h. The optimal conditions for this system are as follows: mass ratio of graphite to PTFE in cathode, 21, calcination temperature, 300 °C, current density,4.69mA/cm2, pH 13.0, and the distance between anode and cathode, 8cm. The high concentration of hydrogen peroxide generated gives a promising application of this novel gas diffusion electrode system in pulp bleaching and waste-water treatment.

scholarly journals Hydrogen peroxide electrogeneration in gas diffusion electrode nanostructured with Ta2O5

2016 ◽  
Vol 517 ◽  
pp. 161-167 ◽  
Author(s):  
Jussara F. Carneiro ◽  
Robson S. Rocha ◽  
Peter Hammer ◽  
R. Bertazzoli ◽  
M.R.V. Lanza
Keyword(s):  
Hydrogen Peroxide ◽  
Gas Diffusion ◽  
Gas Diffusion Electrode

Use of Gas Diffusion Electrode for the In Situ Generation of Hydrogen Peroxide in an Electrochemical Flow-By Reactor

2011 ◽  
Vol 51 (2) ◽  
pp. 649-654 ◽  
Author(s):  
Rafael M. Reis ◽  
André A. G. F. Beati ◽  
Robson S. Rocha ◽  
Mônica H. M. T. Assumpção ◽  
Mauro C. Santos ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Gas Diffusion ◽  
Gas Diffusion Electrode ◽  
In Situ Generation

scholarly journals Development and testing of bioelectrochemical reactors converting wastewater organics into hydrogen peroxide

2012 ◽  
Vol 66 (4) ◽  
pp. 831-836 ◽  
Author(s):  
Oskar Modin ◽  
Kensuke Fukushi
Keyword(s):  
Hydrogen Peroxide ◽  
Wastewater Treatment Plants ◽  
Energy Content ◽  
Coulombic Efficiency ◽  
Gas Diffusion ◽  
Synthetic Wastewater ◽  
H2o2 Production ◽  
Production Of Hydrogen ◽  
Carbon Fiber Paper ◽  
Real Wastewater

In a bioelectrochemical system, the energy content in dissolved organic matter can be used to power the production of hydrogen peroxide (H2O2), which is a potentially useful chemical at wastewater treatment plants. H2O2 can be produced by the cathodic reduction of oxygen. We investigated four types of gas-diffusion electrodes (GDEs) for this purpose. A GDE made of carbon nanoparticles bound with 30% polytetrafluoroethylene (PTFE) (wt./wt.C) to a carbon fiber paper performed best and catalyzed H2O2 production from oxygen in air with a coulombic efficiency of 95.1%. We coupled the GDE to biological anodes in two bioelectrochemical reactors. When the anodes were fed with synthetic wastewater containing acetate they generated a current of up to ∼0.4 mA/mL total anode compartment volume. H2O2 concentrations of ∼0.2 and ∼0.5% could be produced in 5 mL catholyte in 9 and 21 h, respectively. When the anodes were fed with real wastewater, the generated current was ∼0.1 mA/mL and only 84 mg/L of H2O2 was produced.

Synthesis of peroxyacetic acid using in situ electrogenerated hydrogen peroxide on gas diffusion electrode

2003 ◽  
Vol 5 (6) ◽  
pp. 445-448 ◽  
Author(s):  
Madhu Sudan Saha ◽  
Ao Denggerile ◽  
Yoshinori Nishiki ◽  
Tsuneto Furuta ◽  
Takeo Ohsaka
Keyword(s):  
Hydrogen Peroxide ◽  
Gas Diffusion ◽  
Gas Diffusion Electrode ◽  
Peroxyacetic Acid
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