Anion Exchange Ionomer Dispersion (NEXIONIC NA5) for Alkaline Electrolyzer and Fuel Cell, 10 mL/bottle, CAEFCAEIDNA5
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NEXIONIC was developed to provide a high-performance, stable alternative for alkaline electrochemical systems, bridging the gap between established brands like Fumatech (FAA-3) and specialized materials like PiperION or Sustainion.
The NEXIONIC™ NA5 dispersion (often specifically referred to as NA5-05) is a high-stability Anion Exchange Ionomer (AEI) produced by Ion Power. It is based on a Quaternary Ammonium Poly(phenylene terphenyl) (QAPPT) backbone. In the AEM (Anion Exchange Membrane) research community, NA5 is a premium alternative to older materials like FAA-3, offering a balance between ease of use and extreme chemical durability.
The performance of NA5 is defined by its ether-bond-free structure. Most traditional anion-exchange materials degrade because their oxygen-based ether linkages are attacked by hydroxide ions (OH-). (1) Backbone: A rigid, all-carbon aryl-phenylene chain that is chemically inert in high-pH environments. (2) Functional Group: A quaternary ammonium cation tethered to the rings. These sites facilitate the transport of anions like OH-, Cl-, or HCO3^-. (3) Solvent: Usually provided as a 5 wt% dispersion in a mixture of propanol, ethanol, and water.
NA5 is specifically formulated for the construction of Membrane Electrode Assemblies (MEAs). (1) AEM Water Electrolyzers (AEMWE): Acting as the binder for non-precious catalysts like NiFe Layered Double Hydroxides (LDH). (2) AEM Fuel Cells (AEMFC): Used in the cathode to facilitate the oxygen reduction reaction. (3) CO2 Electrolysis: Used in the cathode layer to manage ion transport while maintaining gas permeability.
| Part Number |
CAEFCAEIDNA45 |
| Polymer Backbone |
Quaternary Ammonium Poly(phenylene terphenyl) (QAPPT) |
| Appearance |
Transparent liquid with light yellow |
| Solvent System |
~70-80% Alcohol / ~20-30% Water |
| Ion-Exchange Capacity (IEC) |
2.6 meq/g |
| Ionic Conductivity (80 °C) |
155 mS/cm |
| Package Size | 10 mL/bottle |
References:
- S. Han, et al. Advancing the Co-Based Anode Catalysts Using Ionomers in Pure-Water Anion Exchange Membrane Electrolyzers, Adv. Funct. Mater., 2025, 35, 2508175.
- R. Sgarbi, et al. Improved Activity and Durability of Carbon-Capped Pd and PdNi Catalysts─From Model Active Layers to Anion-Exchange Membrane Fuel Cell Electrodes, ACS Catal. 2025, 15, 11, 9379–9392.