3-Triethylammonium propane sulfonate ionic liquids for Nafion-based composite membranes for PEM fuel cells

Autor(es)

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]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: Journal of Materials Science; v. 55, n. 16 FEB 2020.
• Citações Web of Science: 0

Resumo

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)

• Processo FAPESP: 13/16930-7 - Eletrocatálise V: processos eletrocatalíticos de interconversão entre as energias química e elétrica
• Beneficiário: Edson Antonio Ticianelli
• Modalidade de apoio: Auxílio à Pesquisa - Temático