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

Manipulating Water in High-Performance Hydroxide Exchange Membrane Fuel Cells through Asymmetric Humidification and Wetproofing

“…12 In HEMFCs the hydrogen oxidation reaction (HOR) produces water so in principle the anode is analogously susceptible to flooding; yet, while GDL thickness has been studied in the HEMFC literature, 4 there is little discussion of hydrophobic treatment or MPLs. 3,[13][14][15] Cathode drying is also a potential concern for HEMFCs because the oxygen reduction reaction (ORR) consumes water (Scheme 1).…”

Experimental investigation on the performance and durability of hydrogen AEMFC with electrochemical impedance spectroscopy

“…[13][14][15][16][17][18][19][20] Sommer et al 13 numerically optimized the structures of AEMFC, aiming at achieving maximum net power. [13][14][15][16][17][18][19][20] Sommer et al 13 numerically optimized the structures of AEMFC, aiming at achieving maximum net power.…”

“…Recently, more and more studies on the performance and durability of AEMFCs with different cell designs and operating conditions have been conducted. [13][14][15][16][17][18][19][20] Sommer et al 13 numerically optimized the structures of AEMFC, aiming at achieving maximum net power. Omasta et al 14 pointed out that water management was a critical parameter, restricting the AEMFC performance, and electrode optimization such as carbon ratio had huge research potential.…”

“…Omasta et al 14 pointed out that water management was a critical parameter, restricting the AEMFC performance, and electrode optimization such as carbon ratio had huge research potential. The effects of gas diffusion electrode structure parameters on the AEMFC performance were studied by Yang et al 15 With Pt loading of 1.0 mg cm −2 and 20-wt% polytetrafluoroethylene (PTFE), the power density of 213 mW cm −2 (50°C) was achieved. Mamlouk et al 16 studied how catalyst layer (CL) thickness/membrane thickness and ionomer fraction affected the performance of AEMFC, and a peak power density of 337 mW cm −2 was reached at 0.5 V with air as cathode gas.…”

3D Pd/Co core–shell nanoneedle arrays as a high-performance cathode catalyst layer for AAEMFCs

“…State-of-the-art methods for the preparation of CLs for AAEMFCs, taken from the methods used to synthesize its acidic counterpart PEMFCs, include the preparation of a catalyst coated membrane (CCM) where the CLs are formed by directly coating a slurry of a catalyst on both sides of the AEM and the gas diffusion electrode (GDE), where the CL is brushed on the microporous layer side of the gas diffusion layer. [7][8][9] The CLs are composed of nely divided particles of a platinum group metal (PGM) supported on carbon and mixed with an ionomer (an ion conducting polymer). This structure provides conductive pathways for electrons through the carbon support, hydroxyl ions through the ionomer, and gas diffusion pathways for reactants through gas-lled pores.…”