Transport properties of fast proton conducting mesoporous silica xerogels

Mesoporous acid-free silica xerogels exhibiting a proton conductivity of 2.0 × 10 −2 S cm −1 at 80 °C and 81% RH is reported for the first time. The proton conductivity values, lower cost and higher hydrophilicity of mesoporous silica xerogels make them potential substitutes for Nafion membranes in...

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Veröffentlicht in:	Journal of power sources 2007-05, Vol.167 (1), p.53-57
Hauptverfasser:	Colomer, M.T., Rubio, F., Jurado, J.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Mesoporosity Proton exchange membranes Silica xerogels
Online-Zugang:	Volltext
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Zusammenfassung:	Mesoporous acid-free silica xerogels exhibiting a proton conductivity of 2.0 × 10 −2 S cm −1 at 80 °C and 81% RH is reported for the first time. The proton conductivity values, lower cost and higher hydrophilicity of mesoporous silica xerogels make them potential substitutes for Nafion membranes in proton exchange membranes fuel cells (PEMFCs).
ISSN:	0378-7753 1873-2755
DOI:	10.1016/j.jpowsour.2007.01.092