Journal Article

FZJ-2021-00118

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Exploring the Interface of Skin‐Layered Titanium Fibers for Electrochemical Water Splitting

Liu, C. (Corresponding author)FZJ*RWTH* ; Shviro, M.FZJ* ; Gago, A. S. ; Zaccarine, S. F. ; Bender, G. ; Gazdzicki, P. ; Morawietz, T. ; Biswas, I. ; Rasinski, M. (Corresponding author)FZJ* ; Everwand, A.FZJ* ; Schierholz, R.FZJ* ; Pfeilsticker, J. ; Müller, M.FZJ* ; Lopes, P. P. ; Eichel, R.-A.FZJ*RWTH* ; Pivovar, B. ; Pylypenko, S. ; Friedrich, K. A. ; Lehnert, W.FZJ*RWTH* ; Carmo, M. (Corresponding author)FZJ*

2021
Wiley-VCH Weinheim

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Please use a persistent id in citations: http://hdl.handle.net/2128/27308  doi: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, it is shown for the first time how PTLs can be adapted so that their interface remains well protected and resistant to corrosion across ≈4000 h under real electrolysis conditions. It is also demonstrated 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.

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Contributing Institute(s):

1. Elektrochemische Verfahrenstechnik (IEK-14)
2. Grundlagen der Elektrochemie (IEK-9)
3. Plasmaphysik (IEK-4)

Research Program(s):

1. 134 - Plasma-Wand-Wechselwirkung (POF4-134) (POF4-134)
2. 123 - Chemische Energieträger (POF4-123) (POF4-123)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 20 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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