Proton conductivity of Nafion-azolebisphosphonates membranes for PEM fuel cells

Teixeira, Fatima; Sá, A.I. De; Teixeira, António P. S.; Rangel, C. M.

Publication

Proton conductivity of Nafion-azolebisphosphonates membranes for PEM fuel cells

2018Conference object

dc.contributor.author	Teixeira, Fatima
dc.contributor.author	Sá, A.I. De
dc.contributor.author	Teixeira, António P. S.
dc.contributor.author	Rangel, C. M.
dc.date.accessioned	2019-01-30T17:00:10Z
dc.date.available	2019-01-30T17:00:10Z
dc.date.issued	2018
dc.description.abstract	ABSTRACT: Energy systems with cleaner and sustainable sources are crucial challenges of the 21st century to deal with the environmental threat of global warming and the declining reserves of fossil fuels. Fuel cells are electrochemical devices that convert the chemical energy stored in a fuel directly into electrical energy, providing electrical energy with high efficiency and low environmental impact. Among them, proton exchange membrane fuel cells (PEMFCs) are considered promising power sources, due to their high power density and high power-to-weight ratio but their performance depends crucially on their proton exchange membranes. Usually, these membranes are made of organic polymers containing acidic functionalities (ex. Nafion®), which proton transport properties strongly depend on their water content and, consequently, limit their operation temperatures up to 90ºC. Preliminary studies have demonstrated that incorporation of aryl-bisphosphonic acids into Nafion, by casting, results in an enhancement of the proton conductivity of the membrane. The aim of this work was the preparation of new Nafion membranes doped with azolebisphosphonates derivatives, which could act as a source of protons and also function as proton acceptors, facilitating the intermolecular transmission of protons through the membrane.	pt_PT
dc.description.version	N/A	pt_PT
dc.identifier.citation	Teixeira, F.C.; Sá, A.I. de; Teixeira, A.P.S... [et.al.] - Proton conductivity of Nafion-azolebisphosphonates membranes for PEM fuel cells. In: AEM2018: 3rd International Conference on Advanced Energy Materials, Surrey, England, 10-12 September, 2018	pt_PT
dc.identifier.uri	http://hdl.handle.net/10400.9/3119
dc.language.iso	eng	pt_PT
dc.relation	PEMFCSUD OE - SOE1/P1/E0293	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Fuel cells	pt_PT
dc.subject	Polymer electrolyte membrane	pt_PT
dc.title	Proton conductivity of Nafion-azolebisphosphonates membranes for PEM fuel cells	pt_PT
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Surrey, England	pt_PT
oaire.citation.title	AEM2018: 3rd International Conference on Advanced Energy Materials	pt_PT
person.familyName	Teixeira
person.familyName	Sá
person.familyName	Teixeira
person.familyName	Rangel
person.givenName	Fatima
person.givenName	Ana
person.givenName	António Paulo Silva
person.givenName	Carmen M.
person.identifier.ciencia-id	C014-509B-D1DC
person.identifier.ciencia-id	B615-CCF2-424E
person.identifier.ciencia-id	AA13-FF7C-9E29
person.identifier.orcid	0000-0003-0801-2068
person.identifier.orcid	0000-0003-1267-7994
person.identifier.orcid	0000-0001-7448-0893
person.identifier.orcid	0000-0001-7996-8142
person.identifier.rid	N-5456-2014
person.identifier.rid	D-5477-2011
person.identifier.scopus-author-id	7102746385
person.identifier.scopus-author-id	36856362300
person.identifier.scopus-author-id	7006108156
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
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