Next-generation anion exchange membrane water electrolyzers operating for commercially relevant lifetimes
| Autor: | Zheng Richard Ni, Zengcai Liu, Laureen Meroueh, Rich I. Masel, Behrooz Motealleh, Julian P. Sculley |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Materials science Ion exchange Electrolysis of water Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology 02 engineering and technology Alkaline anion exchange membrane Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Fuel Technology Membrane Chemical engineering chemistry Degradation (geology) Cubic zirconia 0210 nano-technology Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 46:3379-3386 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2020.10.244 |
| Popis: | Alkaline anion exchange membrane (AEM) water electrolysis has gained increasing attention due to its potential to achieve low-cost, high performance hydrogen production. However, most existing membranes are not durable in industrial settings. Here, we demonstrate good performance relative to industrial parameters using Sustainion® anion exchange membranes. Long-duration tests showed stable performance of 1 A/cm2 at 1.85 V with a degradation rate of less than 1 μV/h over 10,000 h. The projected lifetime is thus over 20 years. Daily on/off cycling performance over the course of 30 years was simulated experimentally through accelerated voltage shock tests, resulting in a performance loss of only 0.15 μV/cycle over 11,000 cycles. As shown through impact and crossover testing, an improvement in performance is achieved by the addition of zirconia to the polymer matrix and mechanically reinforcing the membrane. |
| Databáze: | OpenAIRE |
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