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Proton Exchange Membrane Electrolyzer Systems Operating Dynamically at High Current Densities

Lettenmeier, Philipp and Wang, rainey and Abouatallah, Rami and Burggraf, Fabian and Gago, Aldo and Friedrich, K. Andreas (2016) Proton Exchange Membrane Electrolyzer Systems Operating Dynamically at High Current Densities. ECS Transactions, 72 (23), pp. 11-21. Electrochemical Society, Inc.. DOI: 10.1149/07223.0011ecst ISSN 1938-5862

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Official URL: http://ecst.ecsdl.org/content/72/23/11.abstract

Abstract

The fluctuating behavior of renewable energy sources hinders the widespread integration of those in a reliable electricity grid. Presumably, the wide operation range and rapid response of proton exchange membrane (PEM) electrolyzers can stabilize the grid, yet the degradation effects are not fully understood. The results presented here show no negative effect of dynamic operation at current 0.8, 1.6, 2.5 and 3.3 A cm-2, on commercial membrane electrode assemblies (MEA) with two different catalyst loadings. Conversely, the reduction of the loading of precious metal in the MEA leads to a cell voltage increase by 100 mV at 3.3 A cm-2. In addition, stack temperature correction of industrial facilities is necessary for proper comparison of cell potential and analysis of degradation mechanisms.

Item URL in elib:https://elib.dlr.de/107903/
Document Type:Article
Title:Proton Exchange Membrane Electrolyzer Systems Operating Dynamically at High Current Densities
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lettenmeier, PhilippdlrUNSPECIFIED
Wang, raineyhydrogenicsUNSPECIFIED
Abouatallah, RamihydrogenicsUNSPECIFIED
Burggraf, FabiandlrUNSPECIFIED
Gago, Aldoaldo.gago (at) dlr.deUNSPECIFIED
Friedrich, K. Andreasandreas.friedrich (at) dlr.deUNSPECIFIED
Date:2016
Journal or Publication Title:ECS Transactions
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:72
DOI :10.1149/07223.0011ecst
Page Range:pp. 11-21
Publisher:Electrochemical Society, Inc.
Series Name:Hydrogen and Oxygen Evolution Catalysis for Water Electrolysis 2
ISSN:1938-5862
Status:Published
Keywords:PEM Elektrolyzer, Degradation, Hydrogen, MEA,
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Electrolysis and Hydrogen
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Electrochemical Processes (Electrolysis) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Lettenmeier, Philipp
Deposited On:22 Nov 2016 10:01
Last Modified:06 Sep 2019 15:24

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