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Exploring the interface of skin-layered titanium fibers for electrochemical water-splitting

Liu, Chang and Shviro, Meital and Gago, Aldo and Zaccarine, Sarah and Bender, Guido and Gazdzicki, Pawel and Morawietz, Tobias and Biswas, Indro and Rasinski, Marcin and Everwand, Andreas and Schierholz, Roland and Pfeilsticker, Jason and Müller, Martin and Lopes, Pietro and Eichel, Rüdiger and Pivovar, Bryan and Pylypenko, Svitlana and Friedrich, Kaspar Andreas and Lehnert, Werner and Carmo, Marcelo (2021) Exploring the interface of skin-layered titanium fibers for electrochemical water-splitting. Advanced Energy Materials, p. 202002926. Wiley. doi: 10.1002/aenm.202002926. ISSN 1614-6832.

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Official URL: https://onlinelibrary.wiley.com/doi/full/10.1002/aenm.202002926

Abstract

Water electrolysis is the key to a decarbonized energy system, as it enables the conversion and storage of renewably-generated intermittent electricity in the form of hydrogen. However, reliability challenges arising from titanium-based porous transport layers (PTLs) have hitherto restricted the deployment of next-generation water-splitting devices. Here, we show for the first time how PTLs can be adapted so that their interface remains well-protected and resistant to corrosion across ~4000 hours under real electrolysis conditions. We also demonstrate that the malfunctioning of unprotected PTLs is a result triggered by additional fatal degradation mechanisms over the anodic catalyst layer beyond the impacts expected from iridium oxide stability. Now, superior durability and efficiency in water electrolyzers can be achieved over extended periods of operation with less-expensive PTLs with proper protection, which can be explained by the detailed reconstruction of the interface between the different elements, materials, layers and components presented in this work.

Item URL in elib:https://elib.dlr.de/139428/
Document Type:Article
Title:Exploring the interface of skin-layered titanium fibers for electrochemical water-splitting
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Liu, ChangForschungzentrum JülichUNSPECIFIEDUNSPECIFIED
Shviro, MeitalForschungzentrum JülichUNSPECIFIEDUNSPECIFIED
Gago, AldoUNSPECIFIEDhttps://orcid.org/0000-0001-7000-171XUNSPECIFIED
Zaccarine, SarahColorado School of MinesUNSPECIFIEDUNSPECIFIED
Bender, GuidoNational Renewable Energy Laboratory, Colorado, USAUNSPECIFIEDUNSPECIFIED
Gazdzicki, PawelUNSPECIFIEDhttps://orcid.org/0000-0002-5728-7861UNSPECIFIED
Morawietz, TobiasUNSPECIFIEDhttps://orcid.org/0000-0003-2291-9360UNSPECIFIED
Biswas, IndroUNSPECIFIEDhttps://orcid.org/0000-0002-6815-4204UNSPECIFIED
Rasinski, MarcinForschungszentrum JülichUNSPECIFIEDUNSPECIFIED
Everwand, AndreasForschungszentrum JülichUNSPECIFIEDUNSPECIFIED
Schierholz, RolandForschungszentrum JülichUNSPECIFIEDUNSPECIFIED
Pfeilsticker, JasonNational Renewable Energy Laboratory, Colorado, USAUNSPECIFIEDUNSPECIFIED
Müller, MartinForschungszentrum JülichUNSPECIFIEDUNSPECIFIED
Lopes, PietroArgonne National LaboratoryUNSPECIFIEDUNSPECIFIED
Eichel, RüdigerForschungszentrum JülichUNSPECIFIEDUNSPECIFIED
Pivovar, BryanNational Renewable Energy Laboratory, Colorado, USAUNSPECIFIEDUNSPECIFIED
Pylypenko, SvitlanaColorado School of MinesUNSPECIFIEDUNSPECIFIED
Friedrich, Kaspar AndreasUNSPECIFIEDhttps://orcid.org/0000-0002-2968-5029UNSPECIFIED
Lehnert, WernerForschungszentrum JülichUNSPECIFIEDUNSPECIFIED
Carmo, MarceloForschungszentrum JülichUNSPECIFIEDUNSPECIFIED
Date:5 January 2021
Journal or Publication Title:Advanced Energy Materials
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1002/aenm.202002926
Page Range:p. 202002926
Publisher:Wiley
ISSN:1614-6832
Status:Published
Keywords:Iridium, degradation, durability, porous transport layer, polymer electrolyte membrane water electrolysis
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Electrolysis and Hydrogen
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Elektrochemical Processes (Electrolysis) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Biswas, Dr. Indro
Deposited On:20 Jul 2021 14:05
Last Modified:27 Jun 2023 09:47

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