TITLE

Electrical and thermal investigation of a self-breathing fuel cell

AUTHOR(S)
Sailler, S.; Rosini, S.; Chaib, M.A.; Voyant, J.-Y.; Bultel, Y.; Druart, F.; Ozil, P.
PUB. DATE
January 2007
SOURCE
Journal of Applied Electrochemistry;Jan2007, Vol. 37 Issue 1, p161
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This study presents a new method of PEMFC characterisation carried out experimentally on a self-breathing fuel cell from PaxiTech® (25 cm2 electrode surface area). First, dc and ac measurements were performed on this cell on the basis of models originally dedicated to a Gas Diffusion Cathode. Electrochemical Impedance Spectroscopy (EIS) measurements were performed to characterise the general electrical behaviour of the cell. This technique is of particular interest for improving our understanding of mass transport limitations in PEMFCs. Second, current and temperature distributions over the fuel cell area were determined. Measurements of the locally induced magnetic field and the temperature then provided an indirect evaluation of the current densities in the fuel cell. Both methods were used to determine heterogeneous current density distributions and showed that the highest current densities were close to the current collectors.
ACCESSION #
23479631

 

Related Articles

  • Ionic relaxation in polyethyleneimine-lithium bis(trifluoromethylsulfonyl) imide polymer electrolytes. Pehlivan, İlknur Bayrak; Marsal, Roser; Georén, Peter; Granqvist, Claes G.; Niklasson, Gunnar A. // Journal of Applied Physics;Oct2010, Vol. 108 Issue 7, p074102 

    Polymer electrolytes containing polyethyleneimine and different concentrations of lithium bis(trifluoromethylsulfonyl) imide were investigated by impedance spectroscopy at different temperatures. Two equivalent circuit models were compared for the bulk impedance response. The first one includes...

  • The role of shallow traps in dynamic characterization of organic semiconductor devices. Knapp, Evelyne; Ruhstaller, Beat // Journal of Applied Physics;7/15/2012, Vol. 112 Issue 2, p024519 

    We present an analysis of charge mobility determination methods for the steady as well as the transient state and investigate shallow charge traps with respect to their dynamic behavior. We distinguish between fast and slow trap states in our numerical model corresponding to two characteristic...

  • Impedance spectroscopy of micron sized magnetic tunnel junctions with MgO tunnel barrier. Ingvarsson, Snorri; Arikan, Mustafa; Carter, Matthew; Weifeng Shen; Gang Xiao // Applied Physics Letters;6/7/2010, Vol. 96 Issue 23, p232506 

    We have studied the magnetoimpedance of micron sized magnetic tunnel junction sensors with 1.7 nm MgO tunnel barrier. We performed ac impedance spectroscopy in the frequency range between 100 Hz–40 MHz as a function of applied magnetic field in the sensing direction. We model our devices...

  • Label-free detection of charged macromolecules by using a field-effect-based sensor platform: Experiments and possible mechanisms of signal generation. Poghossian, A.; Ingebrandt, S.; Abouzar, M.H.; Sch&;#x00F6;ning, M.J. // Applied Physics A: Materials Science & Processing;Jun2007, Vol. 87 Issue 3, p517 

    The possibilities and limitations of a direct electrical detection of charged macromolecules using a field-effect-based sensor platform is evaluated, mainly focusing on capacitive EIS (electrolyte-insulator-semiconductor) devices. The experimentally obtained results on the detection of DNA...

  • Using Localized Impedance Spectroscopy to Study the Effect of Loading Potential Variation on DMFC Anode Performance. Nai-bao Huang; Wan Li; Cheng-hao Liang; Li-shuang Xu; Xiao-ye Wang; Tian-hang Sun; Min Sun // Materials Science Forum;2016, Vol. 852, p785 

    By localized impedance spectroscopy (LEIS) and electrochemical impedance spectroscopy (EIS), the effect of loading potential variation on the performance of direct methanol fuel cell ( DMFC ) anode was studied. During surface scanning, the local impedance of the anode showed sawtooth-like...

  • Electrochemical characterisation of fuel cell stack during cold start. Harel, F.; Bégot, S.; Wasterlain, S.; Candusso, D. // European Physical Journal - Applied Physics;May2011, Vol. 54 Issue 2, pN.PAG 

    Fuel cell self start at negative temperature conditions is not an easy task due to the water produced by the reduction of oxygen at the cathode. This amount of water can turn into ice and block the reaction before the temperature inside the fuel cell reaches positive values. The mechanism of the...

  • Polyvinyl Pyrrolidone as a Green Corrosion Inhibitor of Carbon Steel in Neutral Solutions Containing NaCl: Electrochemical and Thermodynamic Study. Al Juhaiman, Layla A.; Mustafa, Amal Abu; Mekhamer, Waffa K. // International Journal of Electrochemical Science;Sep2012, Vol. 7 Issue 9, p8578 

    The corrosion inhibition of carbon steel (CS) using the "green" inhibitor, polyvinyl pyrrolidone (PVP) was investigated. This study was conducted at pH 7 and pH 8 in an aerated medium containing 0.1 M NaCl. The effects caused by some additives (KI and untreated clay) were investigated. The study...

  • Electrochemical characterization of anodic biofilm development in a microbial fuel cell. Martin, Edith; Savadogo, Oumarou; Guiot, Serge; Tartakovsky, Boris // Journal of Applied Electrochemistry;May2013, Vol. 43 Issue 5, p533 

    Electrochemical impedance spectroscopy, cyclic voltammetry, and polarization tests were used to monitor the progress of the anode colonization by electrode-reducing microorganisms in a single-chamber membraneless microbial fuel cell seeded with anaerobic sludge. The electrochemical methods...

  • Morphology and electrochemical activity of SOFC composite cathodes: I. experimental analysis. Barbucci, Antonio; Paola Carpanese, M.; Viviani, Massimo; Vatistas, Nicolaos; Nicolella, Cristiano // Journal of Applied Electrochemistry;Apr2009, Vol. 39 Issue 4, p513 

    This paper describes the first part of an experimental and theoretical study performed on composite Lanthanum Strontium Manganite (LSM) and Yttria-stabilized Zirconia (YSZ) electrodes. Cathode electrocatalytic activity was investigated using different cell configurations and carrying out...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics