Hybrid polymer electrolyte fuel cells combine a proton exchange membrane PEM and anion exchange membrane AEM and exhibit unique advantages. The electrochemical performance and current limitations of a hybrid cell with an alkaline electrode fabricated on a Nafion membrane was characterized at 70°C as a function of relative humidity. To separate the individual characteristics of the AEM anode and...

In this study, the poisoning effects of cerium oxide (CeO2) as contaminant on performance proton exchange membrane fuel cells (PEMFCs) are evaluated. An experimental setup was developed to analyze characteristic (I-V) curves in contaminated and non-contaminated conditions. Focused ion-beam scanning electron microscopy (FIB-SEM) cross-section images were obtained an input for energy dispersive X...

An oral controlled release suspension of chlorpheniramine maleate was prepared using ion-exchange resin technology. A strong cation exchange resin Indion 244 was utilized for the sorption of the drug and the drug resinates was evaluated for various physical and chemical parameters. The drug-resinate complex was microencapsulated with a polymer Eudragit RS 100 to further retard the release chara...

In this study, we addressed the straightforward reconstitution of red blood cell (RBC) membranes on the surface of cationic organic polymer beads. The RBC membrane-bead complex was obtained by the incubation of white, unsealed rat RBC ghost membranes with a nonporous quaternary ammonium-type anion-exchange polymer bead with a 350-550 microm diameter. Confocal microscopic observations using a fl...

A novel method for flexibly implementing sample dialysis on microchips is introduced. Nanoporous polymer membranes (5-20 pm thickness) with up to 1OOO:l aspect ratio are fabricated in-situ on silica microchips via photopatterned phase-separation polymerization. These membranes enable selective diffusion of molecules smaller than a cutoff specified by the membrane pore size. Diffusion measuremen...

Abstract AEMFC is an attractive alternative to PEMFCs, due the faster reaction kinetics that permits use non‐platinum‐group metal catalysts and thanks high pH of electrolyte allows less expensive hardware. In any case, alkaline exchange polymeric membrane as requires development optimization electrode structures MEA. this work, MEAs, based on FAA3‐50 commercial membrane, were developed electroc...