Correlation of Synchrotron X-ray Radiography and Electrochemical Impedance Spectroscopy for the Investigation of HT-PEFCs
Source abstract
Abstract
Differently conditioned high temperature polymer electrolyte fuel cells (HT-PEFCs) were investigated by electrochemical impedance spectroscopy to study the influence of the break-in procedure on the overall fuel cell performance during the heating-up procedure as well as during different operating conditions. It is shown that a classical 70 h break-in leads to better fuel cell performance compared to a fuel cell which is used without any break-in procedure. A combination of synchrotron X-ray radiographic measurements with in situ time-dependent impedance spectroscopy was used to investigate the de-/hydration processes of the phosphoric acid type electrolyte within the components of the membrane electrode assembly (MEA) of a dynamically operated HT-PEFC. This helps to understand the fuel cell performance under different operating conditions.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Advancements in Solid Oxide Fuel Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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