Durability challenges of anion exchange membrane fuel cells

Hybrid Anion and Proton Exchange Membrane Fuel Cells

A novel hybrid fuel cell is described using at least one electrode operating at high pH in an effort to use the high conductivity of Nafion and exploit the electrochemical advantages of high-pH operation. The electrochemical behavior of a hybrid anion exchange membrane (AEM)/proton exchange membrane (PEM) junction and corresponding fuel cell are presented. Two AEM/PEM junctions and fuel cells h...

Ionic Copolymers for Alkaline Anion Exchange Membrane Fuel Cells (AAEMFCs)

High performance anion exchange ionomer for anion exchange membrane fuel cells

The anion exchange ionomer incorporated into the electrodes of an anion exchange membrane fuel cell (AEMFC) enhances anion transport in the catalyst layer of the electrode, and thus improves performance and durability of the AEMFC. In this work, a novel ionomer based on a triblock copolymer with high conductivity and good durability is synthesized successfully. The spectroscopy (such as H-NMR, ...

Fuel cell durability enhancement by crosslinking alkaline anion exchange membrane electrolyte

Article history: Received 22 November 2011 Received in revised form 21 December 2011 Accepted 5 January 2012 Available online 12 January 2012

Durability Study of Proton Exchange Membrane Fuel Cells via Experimental Investigations and Mathematical Modeling

In this dissertation, novel approaches to PEMFC durability research are summarized. These efforts are significantly different from most other studies on durability in that rather than focusing on chemical degradation, more attention is given to the mechanical aspects of the PEMFC system. The tensile stress-strain behavior of Nafion 117 (N117) and sulfonated poly(arylene ether sulfone) random co...