Electrochemical intercalation of bis(fluorosulfonyl)amide anions into graphite from aqueous solutions
| Autor: | Yuto Miyahara, Kohei Miyazaki, Takeshi Abe, Yasuyuki Kondo, Tomokazu Fukutsuka |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Intercalation (chemistry)
Inorganic chemistry 02 engineering and technology 010402 general chemistry 01 natural sciences Redox Potential window Concentrated aqueous solutions lcsh:Chemistry chemistry.chemical_compound Amide Electrochemistry Graphite Aqueous solution biology Chemistry 021001 nanoscience & nanotechnology Decomposition 0104 chemical sciences Water decomposition lcsh:Industrial electrochemistry lcsh:QD1-999 biology.protein 0210 nano-technology Electrode potential Organic anion Graphite intercalation compounds lcsh:TP250-261 |
| Zdroj: | Electrochemistry Communications, Vol 100, Iss, Pp 26-29 (2019) |
| ISSN: | 1388-2481 |
| Popis: | Graphite intercalation compounds of bis(fluorosulfonyl)amide (FSA-GICs) are electrochemically synthesized in a highly concentrated aqueous solution. While only water decomposition occurs at the graphite electrode in a dilute aqueous solution (1 mol kg−1 NaFSA), redox peaks clearly appear in a highly concentrated aqueous solution (19 mol kg−1 NaFSA). Under the application of a constant current, the electrode potential reaches 1.7 V (vs. Ag/AgCl), which is far beyond the upper limit of the potential window, in 19 mol kg−1 NaFSA aq., and the formation of FSA-GIC is confirmed by X-ray diffraction patterns. Acceptor-type GICs using organic anions are observed for the first time in highly concentrated aqueous solutions of NaFSA. Keywords: Concentrated aqueous solutions, Graphite intercalation compounds, Water decomposition, Potential window |
| Databáze: | OpenAIRE |
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