The need to provide clean drinking water to a growing population is well-recognized as a major engineering challenge for the 21st century. Ozone is a powerful disinfectant with many advantageous properties, but the existing methods of production are energy-intensive and require bulky, expensive equipment. Electrochemical ozone production could greatly reduce the operating and capital expense required, but existing catalyst materials do not have adequate performance. In this work, we develop an electrodeposition technique to synthesize nanostructured Ni-Sb-SnO2 electrocatalysts with improved activity and selectivity for the EOP reaction over existing materials1. The optimal temperature of the post-deposition oxidation treatment is determined by the tradeoff between catalyst stability and crystallinity. Analyzing the effect of catalyst loading indicates that the reaction is mediated by a solution-phase intermediate, while selective radical quenching experiments strongly suggest that peroxo species play a key role in the mechanism. Additional studies have identified new combinations of transition- and rare-earth-metal dopants that increase ozone selectivity up to 75%2. Efforts to identify the origin of this improved performance using spectroscopic and other methods are ongoing.

Improving efficiency for electrocatalytic ozone production with catalyst microstructure and dopant composition

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.