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Insights into the reversible oxygen reduction reaction in a series of phosphonium-based ionic liquids.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pozo-Gonzalo, Cristina Howlett, Patrick C. Hodgson, Jennifer L. Madsen, Louis A. Macfarlane, Douglas R. Forsyth, Maria |
| Copyright Year | 2014 |
| Abstract | New findings supporting the stability of the superoxide ion, O2˙(-), in the presence of the phosphonium cation, [P6,6,6,14](+), are presented. Extended electrochemical investigations of a series of neat phosphonium-based ILs with different anions, including chloride, bis(trifluoromethylsulfonyl)imide and dicyanamide, demonstrate the chemical reversibility of the oxygen reduction process. Quantum chemistry calculations show a short intermolecular distance (r = 3.128 Å) between the superoxide ion and the phosphonium cation. NMR experiments have been performed to assess the degree of long term degradation of [P6,6,6,14](+), in the presence of superoxide and peroxide species, showing no chemically distinct degradation products of importance in reversible air cathodes. |
| Starting Page | 124 |
| Ending Page | 129 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/cp/c4/c4cp04101a/c4cp04101a1.pdf |
| Alternate Webpage(s) | http://pubs.rsc.org/en/content/getauthorversionpdf/C4CP04101A |
| PubMed reference number | 25330106v1 |
| Alternate Webpage(s) | https://doi.org/10.1039/c4cp04101a |
| DOI | 10.1039/c4cp04101a |
| Journal | Physical chemistry chemical physics : PCCP |
| Volume Number | 16 |
| Issue Number | 45 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Anions Cation Exchange Resins Cations Chloride Ion Ionic Liquids Ions Liquid substance Organic Chemistry Phenomena Oxygen Peroxides Superoxides |
| Content Type | Text |
| Resource Type | Article |
