Proton exchange membrane electrolysis - Wikipedia
Proton exchange membrane (PEM) electrolysis is the electrolysis of water in a cell equipped with a solid polymer electrolyte (SPE) [3] that is responsible for the conduction of protons, separation of product gases, and electrical insulation of the electrodes. The PEM electrolyzer was introduced to overcome the issues of partial load, low ...
Membrane electrolysis—History, current status and perspective
2016年8月10日 · This review is devoted to membrane electrolysis, in particular utilizing ion-selective membranes, as an important part of both existing and emerging industrial electrochemical processes. It aims to provide fundamental information on the history and development, current status and future perspectives of membrane electrolysis.
Advancements in ordered membrane electrode assembly (MEA) …
2024年12月1日 · Membrane electrode assembly (MEA) is at the forefront of water electrolysis research and development. Compared to conventional alkaline water electrolyzers (ALKWE), proton exchange membrane (PEM) and anion exchange membrane (AEM) water electrolyzers based on MEA exhibit higher efficiency at large current density (>2 A cm −2 ) and produce ...
Anion-Exchange Membrane Water Electrolyzers | Chemical Reviews
2022年4月20日 · Research on anion-exchange polymers (AEPs) has focused on the cationic head/backbone/side-chain structures and key properties such as ionic conductivity and alkaline stability.
Enhanced bipolar membranes for durable ampere-level water electrolysis …
2024年11月21日 · Bipolar membrane (BPM) electrolyzers maintain a steady-state pH gradient, enabling optimal kinetics for electrode reactions. Traditional BPMs face issues with slow water dissociation (WD) kinetics and water transport limitations at high current densities, causing frequent failures during ampere-level electrolysis.
Membrane-Based Electrolysis for Hydrogen Production: A Review
We highlight the basic principles, recent studies, and achievements in membrane-based electrolysis for hydrogen production. Previously, the Nafion™ membrane was the gold standard for PEM electrolyzers, but today, cheaper and more effective membranes are favored. In this paper, CuCl–HCl electrolysis and its operating parameters are summarized.
Proton-exchange membrane water electrolysis: From …
2023年9月21日 · Improving the durability and lifespan of PEMs is key to enhancing their reliability and reducing maintenance costs. On the other hand, the high price of current membranes is prompting researchers to search for new materials, including a wide range of grafted membranes, that can efficiently work in PEMWE.
Hydrogen Production: Electrolysis | Department of Energy
In a polymer electrolyte membrane (PEM) electrolyzer, the electrolyte is a solid specialty plastic material. Water reacts at the anode to form oxygen and positively charged hydrogen ions (protons). The electrons flow through an external circuit and the hydrogen ions selectively move across the PEM to the cathode.
Membrane Strategies for Water Electrolysis | ACS Energy Letters
2022年9月15日 · Green hydrogen production from renewable energy-powered water electrolysis can decarbonize hard-to-abate industries and transport applications. Ion-exchange membranes are an essential component of membrane-based water electrolysis, enabling high hydrogen production efficiency through a zero-gap configuration.
Proton Exchange Membrane Water Electrolysis | SpringerLink
2023年8月22日 · Polymer electrolyte membrane (PEM) electrolysis occurs within an acidic electrolyte using a proton exchange membrane to transport protons (H+). PEM electrolysis operates at temperatures of 50–80 °C, pressures of less than 30 bar, achieving current densities of above 2 Acm −2 and energy efficiencies of 50–65%.
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