| Full text | |
| Author(s): |
Zanchet, Leticia
[1]
;
da Trindade, Leticia Guerreiro
[2]
;
Bariviera, William
[1]
;
Nobre Borba, Katiuscia M.
[1]
;
Santos, Rapher Donizete Moreira
[3]
;
Paganin, Valdecir Antonio
[3]
;
de Oliveira, Cristiane Pontes
[1]
;
Ticianelli, Edson Antonio
[3]
;
Martini, Emilse Maria Agostini
[1]
;
de Souza, Michele Oberson
[1]
Total Authors: 10
|
| Affiliation: | [1] Univ Fed Rio Grande, LRC Inst Chem, POB 15003, BR-91501970 Porto Alegre, RS - Brazil
[2] Univ Estadual Paulista Unesp, Dept Chem, POB 473, BR-17033360 Bauru, SP - Brazil
[3] Univ Sao Paulo, Sao Carlos Inst Chem, POB 780, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Journal of Materials Science; v. 55, n. 16 FEB 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
The 3-triethylammonium propane sulfonic (TEA-PS+) cation associated with the anion tetrafluoroborate, hydrogen sulfate or trifluoromethanesulfonate leads to the formation of the new protic ionic liquids (ILs) 3-triethylammonium propane sulfonic acid tetrafluoroborate (TEA-PS center dot BF4), 3-triethylammonium propane sulfonic acid hydrogen sulfate (TEA-PS center dot HSO4) and 3-triethylammonium propane sulfonic acid trifluoromethanesulfonate (TEA-PS center dot CF3SO3), respectively. These ILs are used to produce Nafion/IL composite membranes with 2.5, 5 or 10 wt% of IL. The results show that the IL addition improves the thermal stability, hydrophilicity and conductivity. Experiments performed with the Nafion/IL membranes in a single proton exchange membrane fuel cell at 100 degrees C indicate that the membrane containing 5 wt% of TEA-PS center dot HSO4 is the most efficient one producing an increase of the maximum current density of approximately 230% when compared to the pristine membrane. (AU) | |
| FAPESP's process: | 13/16930-7 - Electrocatalysis V: electrocatalytic processes of chemical and electrical energy interconversion |
| Grantee: | Edson Antonio Ticianelli |
| Support Opportunities: | Research Projects - Thematic Grants |