Electrochemical ozone production in inert supporting electrolytes on a boron-doped diamond electrode with a solid polymer electrolyte electrolyzer

This study investigated how inert supporting electrolytes (SEs), which increase the electrical conductivity, affect electrochemical ozone production (EOP) on a boron-doped diamond (BDD) electrode. Regardless of the SE species, the EOP was suppressed about 60% in a SE concentration of 1 mM for which...

Full description

Saved in:
Bibliographic Details
Published in:Desalination and water treatment 2016-05, Vol.57 (22), p.10152-10158
Main Authors: Choi, Jusol, Kim, Choonsoo, Kim, Jiye, Kim, Seonghwan, Tak, Yongsug, Lee, Changha, Yoon, Jeyong
Format: Article
Language:English
Subjects:
Anions
Boron
Boron-doped diamond (BDD)
Diamonds
Drinking water
Electrochemical ozone production (EOP)
Electrochemistry
Electrodes
Electrolytes
Hydrogen peroxide
Inert
Ozone
Polymers
Resistivity
Solid polymer electrolyte (SPE) electrolyzer
Supporting electrolyte
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study investigated how inert supporting electrolytes (SEs), which increase the electrical conductivity, affect electrochemical ozone production (EOP) on a boron-doped diamond (BDD) electrode. Regardless of the SE species, the EOP was suppressed about 60% in a SE concentration of 1 mM for which the conductivity is similar to that of tap water compared to deionized water. The production of H2O2, which is known to be generated by the combination of ⋅OH, was also suppressed. On the other hand, the formation of ⋅OH was not significantly affected by the presence of SEs, an intermediate for ozone production. Consequently, suppression of EOP by SE can be explained by physical interference from the diffusion or combination of ⋅OH by the SE anions concentrated near the electrode surface. This study contributes by providing a better mechanistic understanding of the effect of SEs on EOP in a solid polymer electrolyte/BDD system.
ISSN:1944-3986
1944-3994
1944-3986
DOI:10.1080/19443994.2015.1043490