Atomic Heterointerface Engineering Breaks Activity Limitation of Electrocatalysts and Promises Highly-Efficient Alkaline Water Splitting

2021 ◽  
Author(s):  
Qiucheng Xu ◽  
Jiahao Zhang ◽  
Haoxuan Zhang ◽  
Liyue Zhang ◽  
Ling Chen ◽  
...  
Keyword(s):  
Water Splitting ◽  
Anion Exchange ◽  
Low Cost ◽  
Water Electrolysis ◽  
Anion Exchange Membrane ◽  
Alkaline Water Electrolysis ◽  
Green Electricity ◽  
Alkaline Water ◽  
Highly Efficient ◽  
Exchange Membrane

Alkaline water splitting, especially the anion-exchange-membrane based water electrolysis, is an attractive way for low-cost and scalable H2 production. Green electricity-driven alkaline water electrolysis is requested to develop highly-efficient electrocatalysts...

scholarly journals Overview: State-of-the Art Commercial Membranes for Anion Exchange Membrane Water Electrolysis

2020 ◽  
Vol 18 (2) ◽  
Author(s):  
Dirk Henkensmeier ◽  
Malikah Najibah ◽  
Corinna Harms ◽  
Jan Žitka ◽  
Jaromír Hnát ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Water Electrolysis ◽  
Anion Exchange Membrane ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Alkaline Water Electrolysis ◽  
Chemical Structures ◽  
Technical Requirements ◽  
Target Values ◽  
Exchange Membrane

Abstract One promising way to store and distribute large amounts of renewable energy is water electrolysis, coupled with transport of hydrogen in the gas grid and storage in tanks and caverns. The intermittent availability of renewal energy makes it difficult to integrate it with established alkaline water electrolysis technology. Proton exchange membrane (PEM) water electrolysis (PEMEC) is promising, but limited by the necessity to use expensive platinum and iridium catalysts. The expected solution is anion exchange membrane (AEM) water electrolysis, which combines the use of cheap and abundant catalyst materials with the advantages of PEM water electrolysis, namely, a low foot print, large operational capacity, and fast response to changing operating conditions. The key component for AEM water electrolysis is a cheap, stable, gas tight and highly hydroxide conductive polymeric AEM. Here, we present target values and technical requirements for AEMs, discuss the chemical structures involved and the related degradation pathways, give an overview over the most prominent and promising commercial AEMs (Fumatech Fumasep® FAA3, Tokuyama A201, Ionomr Aemion™, Dioxide materials Sustainion®, and membranes commercialized by Orion Polymer), and review their properties and performances of water electrolyzers using these membranes.

Highly Efficient Platinum Group Metal Free Based Membrane-Electrode Assembly for Anion Exchange Membrane Water Electrolysis

2014 ◽  
Vol 126 (5) ◽  
pp. 1402-1405 ◽  
Author(s):  
Claudiu C. Pavel ◽  
Franco Cecconi ◽  
Chiara Emiliani ◽  
Serena Santiccioli ◽  
Adriana Scaffidi ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Water Electrolysis ◽  
Platinum Group Metal ◽  
Membrane Electrode Assembly ◽  
Anion Exchange Membrane ◽  
Membrane Electrode ◽  
Metal Free ◽  
Highly Efficient ◽  
Group Metal ◽  
Exchange Membrane

scholarly journals Durability of Anion Exchange Membrane Water Electolyzers

2021 ◽  
Author(s):  
Dongguo Li ◽  
Andrew R Motz ◽  
Chulsung Bae ◽  
Cy Fujimoto ◽  
Gaoqiang Yang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Anion Exchange ◽  
Low Cost ◽  
Anion Exchange Membrane ◽  
Production Technologies ◽  
Exchange Membrane

Interest in the low-cost production of clean hydrogen is growing. Anion exchange membrane water electrolyzers (AEMWEs) are considered one of the most promising sustainable hydrogen production technologies because of their...

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