The effect of electrode parameters on the performance of anion exchange polymer membrane fuel cells

Mamlouk, Mohamed; Scott, Keith; Horsfall, J.A.; Williams, Colleen A.

doi:10.1016/j.ijhydene.2011.03.074

Cited by 67 publications

(58 citation statements)

References 35 publications

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“…% resulted in a complete Pt surface blockage by the 4VP molecules, as shown in Figure 2c, even though the adherence and mechanical properties of the 4VP-Pt/CB/GDE/T improved significantly compared to the other percentages. In this regard, Mamlouk et al [23] and references therein [22,[41][42][43][44][45][46] have reviewed the importance of ionomer optimisation on the preparation of catalytic inks, and therefore on the electrocatalytic layers of both cathode and anode electrodes towards hydrogen and direct alcohol alkaline fuel cells. Accordingly, the design of the catalytic ink is crucial to obtain electrodes with improved mechanical, thermal stability, electrocatalytic activity and durability performance.…”

Section: Physicochemical and Electrochemical Characterisation Of The mentioning

confidence: 99%

“…With regard to electrocatalytic layer, the functions of the ionomer are (i) binding of nanoparticulate electrocatalyst to form a 3D structure facilitating the mobility and transfer of OH -as well as reactants and products, (ii) increase of electrochemically active surface area (EASA) and (iii) the enhancement of the MEA mechanical durability [17,22,23].…”

Section: Introductionmentioning

confidence: 99%

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Performance Assessment of a Polymer Electrolyte Membrane Electrochemical Reactor Under Alkaline Conditions − a Case Study With the Electrooxidation of Alcohols

García‐Cruz

Casado-Coterillo

Irabien

et al. 2016

Electrochimica Acta

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A novel polymer electrolyte membrane electrochemical reactor (PEMER) configuration has been employed for the direct electrooxidation of propargyl alcohol (PGA), a model primary alcohol, towards its carboxylic acid derivatives in alkaline medium. The PEMER configuration comprised of an anode and cathode based on nano-particulate Ni and Pt electrocatalysts, respectively, supported on carbonaceous substrates. The electrooxidation of PGA was performed in 1.0 M NaOH, where a cathode based on a gas diffusion electrode was manufactured for the reduction of oxygen in alkaline conditions. The performance of a novel alkaline anion-exchange membrane based on Chitosan (CS) and Poly(vinyl) alcohol (PVA) in a 50:50 composition ratio doped with a 5 wt.% of poly (4-vinylpyridine) organic ionomer cross-linked, methyl chloride quaternary salt resin (4VP) was assessed as solid polymer electrolyte. The influence of 4VP anionic ionomer loading of 7, 12 and 20 wt.% incorporated into the electrocatalytic layers was examined by SEM and cyclic voltammetry (CV) upon the optimisation of the electroactive area, the mechanical stability and cohesion of the catalytic ink onto the carbonaceous substrate for both electrodes. The performance of the 4VP/CS:PVA membrane was compared with the commercial alkaline anion-exchange membrane FAA -a membrane generally used in alkaline fuel cells-in terms of polarisation plots in alkaline conditions. Furthermore, preparative electrolyses of the electrooxidation of PGA was performed under alkaline conditions of 1 M NaOH at constant current density of 20 mA cm -2 using a PEMER configuration to provide proof of the principle of the feasibility of the electrooxidation of other alcohols in alkaline media. PGA conversion to Z isomers of 3-(2-propynoxy)-2-propenoic acid (Z-PPA) was circa 0.77, with average current efficiency of 0.32. Alkaline stability of the membranes within the PEMER configuration was finally evaluated after the electrooxidation of PGA.

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Section: Physicochemical and Electrochemical Characterisation Of The mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance Assessment of a Polymer Electrolyte Membrane Electrochemical Reactor Under Alkaline Conditions − a Case Study With the Electrooxidation of Alcohols

García‐Cruz

Casado-Coterillo

Irabien

et al. 2016

Electrochimica Acta

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“…Because the thickness of the CL with such a Pt loading is much thinner than that of GDE-LD5 and the other samples, gas transport will be unimpeded. Therefore, the mass transport resistance may be related to water management [29].…”

Section: Effect Of Pt Loading On Single Cell Performancementioning

confidence: 99%

Effect of gas diffusion electrode parameters on anion exchange membrane fuel cell performance

Yang¹,

Yu²,

Li³

et al. 2014

Chinese Journal of Catalysis

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“…AAEMs produced from the radiation-induced grafting of monomers onto preformed fluorinated, partially fluorinated, and non-fluorinated polymer films have been extensively studied and reported [7][8][9][10]. Generally, precursor polymer films are modified using either a simultaneous grafting method [11] or a pre-irradiation method [8,12] with either gamma-ray or electron-beam irradiation.…”

Section: Introductionmentioning

confidence: 99%

Reduction of the monomer quantities required for the preparation of radiation-grafted alkaline anion-exchange membranes

Poynton

Varcoe

2015

Solid State Ionics

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The effect of electrode parameters on the performance of anion exchange polymer membrane fuel cells

Cited by 67 publications

References 35 publications

Performance Assessment of a Polymer Electrolyte Membrane Electrochemical Reactor Under Alkaline Conditions − a Case Study With the Electrooxidation of Alcohols

Performance Assessment of a Polymer Electrolyte Membrane Electrochemical Reactor Under Alkaline Conditions − a Case Study With the Electrooxidation of Alcohols

Effect of gas diffusion electrode parameters on anion exchange membrane fuel cell performance

Reduction of the monomer quantities required for the preparation of radiation-grafted alkaline anion-exchange membranes

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