Efficient Hydrogen Peroxide Production at High Current Density by Gas Diffusion Electrode Based on Pristine Carbon Black

2021 ◽  
Author(s):  
Jiacheng Liao ◽  
Yao Jiaxiong ◽  
Dian Xu ◽  
Peng Liao ◽  
Shiwei Xie
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Black ◽  
Current Density ◽  
High Current Density ◽  
Gas Diffusion ◽  
Gas Diffusion Electrode ◽  
High Current ◽  
Hydrogen Peroxide Production

scholarly journals Synthesis and application of gas diffusion cathodes in an advanced type of undivided electrochemical cell

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
S. Z. J. Zaidi ◽  
Y. Luan ◽  
C. Harito ◽  
L. Utari ◽  
B. Yuliarto ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Black ◽  
Electrochemical Cell ◽  
Gas Diffusion ◽  
Iron Ions ◽  
Constant Voltage ◽  
Hydrogen Peroxide Production ◽  
Degradation Study ◽  
Remazol Black B ◽  
Remazol Black

Abstract This paper reports the oxidation of Remazol black B dye by employing iron ions catalyst based gas diffusion cathodes, (GDCs). A GDC was synthesized by using a layer of carbon black and iron ions catalyst for oxygen reduction to hydrogen peroxide. The results demonstrated around 97% decolorization of Remazol black-B dye for 50 min by iron ions catalyst based GDC. The degradation study was performed under electrogenerated hydrogen peroxide at a constant voltage of − 0.6 V vs Hg/HgSO4 in which the rate of degradation was correlated with hydrogen peroxide production. Overall, the GDC’s found to be effective method to degrade the dyes via electro-Fenton.

Reducing Physical Adsorption of Enzymes by Surface Modification of Carbon Black for High-Current-Density Biofuel Cells

2014 ◽  
Vol 161 (13) ◽  
pp. H3095-H3099 ◽  
Author(s):  
Takanori Tamaki ◽  
Tomoharu Sugiyama ◽  
Masahiro Mizoe ◽  
Yuhei Oshiba ◽  
Takeo Yamaguchi
Keyword(s):  
Surface Modification ◽  
Carbon Black ◽  
Current Density ◽  
High Current Density ◽  
Physical Adsorption ◽  
Biofuel Cells ◽  
High Current

Copper and silver gas diffusion electrodes performing CO2 reduction studied through operando X-ray absorption spectroscopy

2020 ◽  
Vol 10 (17) ◽  
pp. 5870-5885 ◽  
Author(s):  
Nienke J. Firet ◽  
Thomas Burdyny ◽  
Nathan T. Nesbitt ◽  
Sanjana Chandrashekar ◽  
Alessandro Longo ◽  
...  
Keyword(s):  
Detailed Analysis ◽  
Absorption Spectroscopy ◽  
Current Density ◽  
High Current Density ◽  
Co2 Reduction ◽  
Gas Diffusion ◽  
High Current ◽  
Gas Diffusion Electrodes ◽  
X Ray ◽  
X Ray Absorption

A guide on operando XAS for high current density CO2 reduction and a detailed analysis of the obtained XAS data.

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.

Sign in / Sign up

Export Citation Format

Share Document