Electrochemical ozone production in inert supporting electrolytes on a boron-doped diamond electrode with a solid polymer electrolyte electrolyzer. Issue 22 (8th May 2016)

• Record Type: Journal Article
• Authors: Choi, Jusol; Kim, Choonsoo; Kim, Jiye; Kim, Seonghwan; Tak, Yongsug; Lee, Changha; Yoon, Jeyong
• Is Part Of: Desalination and water treatment. Volume 57:Issue 22(2016)
• Page Start: 10152
• Page End: 10158
• Publication Date: 2016-05-08
• Subjects: Electrochemical ozone production (EOP) -- Boron-doped diamond (BDD) -- Solid polymer electrolyte (SPE) electrolyzer -- Supporting electrolyte; Saline water conversion -- Periodicals; Saline water conversion; Water -- Purification; Periodicals; 628.167
• DOI: 10.1080/19443994.2015.1043490
• Languages: English
• ISSNs: 1944-3994

Abstract

Abstract: 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 H2 O2, which is known to be generated by the combination of, was also suppressed. On the other hand, the formation of 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 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.