Design of experiment techniques for fuel cell characterisation and development

Wahdame, Bouchra; Candusso, Denis; François, Xavier; Harel, Fabien; Kauffmann, J.M.; Coquery, G.

doi:10.1016/j.ijhydene.2008.10.066

Cited by 70 publications

(31 citation statements)

References 42 publications

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“…Electrochemical impedance spectroscopy (EIS) is one the most efficient and reliable methods for electrochemical characterization of a system which includes double layer capacitance, diffusion impedance, charge transfer and solution resistance measurements [28]. EIS uses two theoretical models, namely, homogeneous [29] and porous [30], to explain the behavior of an electrode which is coated with a polymer layer.…”

Section: Introductionmentioning

confidence: 99%

Supercapacitor behaviors of polyaniline/CuO, polypyrrole/CuO and PEDOT/CuO nanocomposites

et al. 2015

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Polyaniline (PANI)/copper oxide (CuO), poly(3,4-ethylenedioxythiophene) (PEDOT)/CuO and polypyrrole (PPy)/CuO have been synthesized electrochemically on glassy carbon electrode in sodium dodecyl sulfate in sulfuric acid solution as an electroactive material. To our best knowledge, the first report on comparison of supercapacitor behaviors of PANI/CuO, PEDOT/CuO and PPy/CuO nanocomposite films was studied by electrochemical impedance spectroscopy, related to the plots of Nyquist, Bode magnitude and Bode phase. The highest specific capacitance (C sp ) was obtained as C sp = 286.35 F 9 g -1 at the scan rate of 20 mV 9 s -1 for PANI/CuO amongst the PEDOT/CuO (C sp = 198.89 F 9 g -1 at 5 mV 9 s -1 ) and PPy/CuO (C sp = 20.78 F 9 g -1 at 5 mV 9 s -1 ) by CV method. Long-term stability of the capacitor has also been tested by CV method, and the results indicated that, after 500 cycles, the specific capacitance of PANI/CuO nanocomposite film is 81.82 % of the initial capacitance. An equivalent circuit model of R s (C dl (R 1 (Q(R 2 W)))) has been used to fit the experimental and theoretical data.

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Section: Introductionmentioning

confidence: 99%

Supercapacitor behaviors of polyaniline/CuO, polypyrrole/CuO and PEDOT/CuO nanocomposites

et al. 2015

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“…An effective way of identifying a suitable dead-ended anode purge strategy is to use the Design of Experiment (DoE) methodology. This creates a factorial experimental plan which increases productivity by both minimising the number of test runs required and also maximising the accuracy of the results obtained [22,23]. As fuel cells have a wide range of component options and operating conditions, DoE has been used extensively for analysis of material properties [24], improvement of bipolar plate design [25,26], and optimisation of membrane electrode assembly composition [27,28] (including membrane type, platinum loading, Nafion impregnation in the electrode and gas diffusion layer assessment).…”

Section: Design Of Experiments Methodologymentioning

confidence: 99%

Development of a polymer electrolyte fuel cell dead-ended anode purge strategy for use with a nitrogen-containing hydrogen gas supply

Okedi

Meyer

Hunter

et al. 2017

International Journal of Hydrogen Energy

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Graphical Highlight2 Highlights (<85 characters per highlight; 3-5 highlights needed)  Nitrogen-containing hydrogen gas mix supplied to PEFC dead-ended anode. Voltage decay seen as both nitrogen content in fuel and fuel cell load increase. Design of Experiments methodology used to assess stack efficiency. Optimised purge strategy identified for nitrogen-containing hydrogen fuel. AbstractThe effect of nitrogen content within the hydrogen fuel supplied to a polymer electrolyte fuel cell (PEFC) operating in dead-ended anode mode is examined, with a view to using an ammonia decomposition product gas mix (containing 75H2:25N2) as the hydrogen-containing fuel. The impact of this impure hydrogen stream, supplied to the anode, was evaluated in terms of mean cell voltage and in relation to actual operating conditions (purge interval, dead-ended interval and fuel cell load). Design of Experiments (DoE) methodology, using multi-linear models, assessed hydrogen utilisation in terms of stack efficiency and identified an effective and viable dead-ended anode purge strategy for this nitrogen-containing hydrogen fuel.

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“…The EIS work done in our lab has focused on water management issues and different flooding/drying states, which are usually reversible and quite easy to control, were induced in the FC generator. In the project, all the experimental data were recorded according to a fractional experimental design [18] including five operating factors (FC temperature, anode and cathode stoichiometry rates, relative humidity rates at anode and cathode) with two levels each. In total, 16 EIS experiments were led on the 20 cell stack.…”

Section: Validation On a 20 Cell Stackmentioning

confidence: 99%

Development of new test instruments and protocols for the diagnostic of fuel cell stacks

Wasterlain

Candusso

Harel

et al. 2011

Journal of Power Sources

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In the area of fuel cell research, most of the experimental techniques and equipments are still devoted to the analysis of single cells or very short stacks. However, the diagnosis of fuel cell stacks providing significant power levels is a critical aspect to be considered for the integration of fuel cell systems into real applications such as vehicles or stationary gensets. In this article, a new instrument developed in-lab is proposed in order to satisfy the requirements of electrochemical impedance studies to be led on large FC generators made of numerous individual cells. Moreover, new voltammetry protocols dedicated to PEMFC stack analysis are described. They enable for instance the study of membrane permeability and loss of platinum activity inside complete PEMFC assemblies. Keywords: PEMFC; Stack; Characterization; Electrochemical Impedance Spectroscopy; Cyclic Voltammetry; Linear Sweep Voltammetry

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Design of experiment techniques for fuel cell characterisation and development

Cited by 70 publications

References 42 publications

Supercapacitor behaviors of polyaniline/CuO, polypyrrole/CuO and PEDOT/CuO nanocomposites

Supercapacitor behaviors of polyaniline/CuO, polypyrrole/CuO and PEDOT/CuO nanocomposites

Development of a polymer electrolyte fuel cell dead-ended anode purge strategy for use with a nitrogen-containing hydrogen gas supply

Development of new test instruments and protocols for the diagnostic of fuel cell stacks

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