| Measurement of Electrochemical Active Surface Area (ECAS) of Single Cell PEMFC Using Test Procedure of European Union Hydrogen and Fuel Cell Joint Undertaking: Test Module P-10d |
| کد مقاله : 1043-THFC |
| نویسندگان |
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مجید صدیقی *1، محمد غلامی2، وحید کرد فیروزجایی3 1دانشگاه صنعتی مالک اشتر، پژوهشکده سیستم های انرژی و پیل سوختی 2دانشگاه صنعتی مالک اشتر، پژوهشکده علوم و فناوری شمال 3دانشگاه مالک اشتر، پژوهشکده علوم و فناوری شمال |
| چکیده مقاله |
| Quantifying of an electrochemical surface area of fuel cell's electrodes creates a useful parameter for monitoring of performance, degradation, and state of health of polymer electrolyte membrane fuel cells (PEMFCs). However, conventional potentiodynamic methods for measuring ECSA require potentiostatic control of the cell, which is not feasible in the fuel cell stack. In-stack electrode potentiometry which requires galvanostatic control of the cell is an alternative to measure the electrochemically active surface areas of the electrodes of a PEMFC stack. Before routinely using the potentiometry method to determine ECSAs in the stack, it should be calibrated against in-cell voltammetry, i.e., find the constant current that will give the same ECSAs as those resulting from voltammetry. In this work, we calibrate potentiometry against voltammetry by calculating ECSA of a single cell PEMFC. Based on our result, performing potentiometry with a constant current near 0.4 A gives the same results as cyclic voltammetry. |
| کلیدواژه ها |
| Single cell PEMFC, Electrochemical active surface area, Potentiometry |
| وضعیت: چکیده برای ارائه پذیرفته شده است |