Evidence for superoxide-initiated oxidation of aniline in water by pulsed, atmospheric pressure plasma
2024-05-13
Persistent link to this item
Statistics
View StatisticsKeywords
Collection period
2022-10-25
2023-03-18
2023-03-18
Date completed
2024-06-06
Date updated
Time period coverage
Geographic coverage
Source information
Journal Title
Journal ISSN
Volume Title
Title
Evidence for superoxide-initiated oxidation of aniline in water by pulsed, atmospheric pressure plasma
Published Date
2024-05-13
Group
Author Contact
Frontiera, Renee R
rrf@umn.edu
rrf@umn.edu
Type
Dataset
Experimental Data
Experimental Data
Abstract
Plasma-driven solution electrochemistry (PDSE) uses plasma-generated reactive species to drive redox reactions in solution. Non-thermal, atmospheric pressure plasmas, when irradiating water, produce many redox species. While PDSE is a promising chemical tool, there is limited insight into the mechanisms of the reactions due to the variety of short-lived reagents produced. In this study, we use aniline as a model system for studying redox mechanisms of PDSE. We show that the plasma irradiation of aqueous aniline solutions drives the formation of polyaniline oligomer, which is suppressed under acidic starting conditions. The addition of (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO), a radical scavenger, decreases the formation of oligomer by 80%, and the addition of superoxide dismutase fully hinders oligomerization. These results lead us to conclude that the oligomerization of aniline by plasma irradiation is initiated by superoxide. This discovery provides novel insights into PDSE mechanisms and illustrates a potential method of harnessing superoxide for chemical reactions.
Description
Attached are the raw data files for the Raman spectra of various samples irradiated by atmospheric pressure plasma and the controls. The Igor files are also included that were used to work up the data analysis. All analysis was done using Igor Pro 7.
Referenced by
Clay, Collin D; Mueller, Chelsea M; Rich, Christopher; Schatz, George C; Bruggeman, Peter; Frontiera, Renee R. Superoxide-initiated oxidation of aniline in water by pulsed, atmospheric pressure plasma. (under review)
Related to
Replaces
item.page.isreplacedby
Publisher
Collections
Funding information
Army Research Office Grant No. W911NF‐20‐1‐0105
item.page.sponsorshipfunderid
item.page.sponsorshipfundingagency
item.page.sponsorshipgrant
Previously Published Citation
Other identifiers
Suggested citation
Clay, Collin D; Mueller, Chelsea M; Rich, Christopher; Schatz, George C; Bruggeman, Peter; Frontiera, Renee R. (2024). Evidence for superoxide-initiated oxidation of aniline in water by pulsed, atmospheric pressure plasma. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/z00b-wa52.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.