An Electrochemical Impedance Spectroscopy Study of Polymer Electrolyte Membrane Fuel Cells Electrocatalyst Single Wall Carbon Nanohorns-Supported

2011 ◽  
Vol 11 (10) ◽  
pp. 9016-9024 ◽  
Author(s):  
Lúcia Brandão ◽  
Marta Boaventura ◽  
Carolina Passeira ◽  
Daniele Mirabile Gattia ◽  
Renzo Marazzi ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Polymer Electrolyte ◽  
Electrochemical Impedance ◽  
Polymer Electrolyte Membrane ◽  
Spectroscopy Study ◽  
Carbon Nanohorns ◽  
Electrolyte Membrane ◽  
Impedance Spectroscopy Study ◽  
Single Wall Carbon Nanohorns

scholarly journals Electrochemical Impedance Spectroscopy as a Diagnostic Tool in Polymer Electrolyte Membrane Electrolysis

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1368 ◽  
Author(s):  
Stefania Siracusano ◽  
Stefano Trocino ◽  
Nicola Briguglio ◽  
Vincenzo Baglio ◽  
Antonino Aricò
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Polymer Electrolyte ◽  
Diagnostic Tool ◽  
Electrochemical Impedance ◽  
Polymer Electrolyte Membrane ◽  
Membrane Electrode ◽  
Short Side ◽  
Electrolyte Membrane ◽  
The Impact

Membrane–electrode assemblies (MEAs) designed for a polymer electrolyte membrane (PEM) water electrolyser based on a short-side chain (SSC) perfluorosulfonic acid (PFSA) membrane, Aquivion®, and an advanced Ir-Ru oxide anode electro-catalyst, with various cathode and anode noble metal loadings, were investigated. Electrochemical impedance spectroscopy (EIS), in combination with performance and durability tests, provided useful information to identify rate-determining steps and to quantify the impact of the different phenomena on the electrolysis efficiency and stability characteristics as a function of the MEA properties. This technique appears to be a useful diagnostic tool to individuate different phenomena and to quantify their effect on the performance and degradation of PEM electrolysis cells.

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