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Electrochemical ozone generation using compacted high pressure high temperature synthesized boron doped diamond microparticle electrodes
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Wood, Georgia, Terrero Rodríguez, Irina M., Tully, Joshua J., Chaudhuri, Shayantan and Macpherson, Julie V. (2021) Electrochemical ozone generation using compacted high pressure high temperature synthesized boron doped diamond microparticle electrodes. Journal of The Electrochemical Society, 168 (12). 126514. doi:10.1149/1945-7111/ac3ff4
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WRAP-Electrochemical-ozone-generation-compacted-high-pressure-high-temperature-2021.pdf - Accepted Version - Requires a PDF viewer. Download (970Kb) | Preview |
Official URL: http://dx.doi.org/10.1149/1945-7111/ac3ff4
Abstract
Electrochemical ozone production (EOP) from water is an attractive, green technology for disinfection. Boron doped diamond (BDD) electrodes, grown by chemical vapor deposition (CVD), have been widely adopted for EOP due to their wide anodic window in water and excellent chemical and electrochemical stability. High pressure high temperature (HPHT) synthesis, an alternative growth technique used predominantly for the high-volume synthesis of nitrogen doped diamond microparticles, has been seldom employed for the production of conductive BDD electrodes. In this paper, we demonstrate, for the first time, the use of BDD electrodes fabricated from HPHT conductive BDD microparticles for EOP. The BDD microparticles are first compacted to produce freestanding solid electrodes and then laser micromachined to produce a perforated electrode. The compacted HPHT BDD microparticle electrodes are shown to exhibit high EOP, producing 2.23 ± 0.07 mg L−1 of ozone per ampere of current, at consistent levels for a continuous 20 h period with no drop off in performance. The HPHT electrodes also achieve a reasonable current efficiency of 23%, at a current density of 770 mA cm−2.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science > Chemistry | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Boron, Diamonds, Electrochemistry, Electrochemical analysis, High pressure (Technology), Ozone | |||||||||||||||
| Journal or Publication Title: | Journal of The Electrochemical Society | |||||||||||||||
| Publisher: | Electrochemical Society, Inc. | |||||||||||||||
| ISSN: | 0013-4651 | |||||||||||||||
| Official Date: | 16 December 2021 | |||||||||||||||
| Dates: |
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| Volume: | 168 | |||||||||||||||
| Number: | 12 | |||||||||||||||
| Article Number: | 126514 | |||||||||||||||
| DOI: | 10.1149/1945-7111/ac3ff4 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | Published | |||||||||||||||
| Publisher Statement: | "This is an author-created, un-copyedited version of an article published in Journal of The Electrochemical Society. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| RIOXX Funder/Project Grant: |
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