Related Experiment Video
Updated: May 30, 2025
09:50
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
12.7K
Highly Efficient and Durable Ammonia Electrolysis Cell Using Zirfon Separator.
Haeyong Shin1, Sang-Mun Jung1, Young Jin Lim1
1Department of Materials Science and Engineering, Pohang University of Science and Technology, Gyeongbuk, 37673, Republic of Korea.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|January 31, 2025
Summary
This study introduces a novel ammonia electrolysis cell (AEC) using a Zirfon separator, overcoming limitations of traditional anion exchange membranes (AEMs). The Zirfon-based AEC demonstrates superior performance and durability under challenging conditions.
Area of Science:
- Electrochemistry
- Materials Science
- Chemical Engineering
Background:
- Anion exchange membranes (AEMs) are commonly used in ammonia electrolysis but have limitations in pH and ammonia concentration.
- Existing AEMs show significant conductivity degradation during operation.
Purpose of the Study:
- To introduce and evaluate a novel ammonia electrolysis cell (AEC) utilizing a Zirfon separator.
- To assess the performance and durability of Zirfon-based AECs under high pH and ammonia concentrations.
Main Methods:
- Fabrication and testing of an ammonia electrolysis cell with a Zirfon separator.
- Performance evaluation through current density measurements.
- Durability assessment via cycling tests and conductivity degradation analysis.
Main Results:
- The Zirfon-based AEC achieved a peak current density of 915 mA cm⁻², the highest reported in AEC literature.
- Zirfon separator exhibited significantly less conductivity degradation (14.1%) compared to AEMs (30.2%) during cycling tests.
- The Zirfon-based AEC demonstrated superior durability and performance under demanding operating conditions.
Conclusions:
- Zirfon separators offer a promising alternative to AEMs for ammonia electrolysis.
- Zirfon-based AECs provide enhanced performance and durability, enabling operation under high pH and ammonia concentrations.
