TY  - JOUR
AU  - Liu, Chang
AU  - Shviro, Meital
AU  - Gago, Aldo S.
AU  - Zaccarine, Sarah F.
AU  - Bender, Guido
AU  - Gazdzicki, Pawel
AU  - Morawietz, Tobias
AU  - Biswas, Indro
AU  - Rasinski, Marcin
AU  - Everwand, Andreas
AU  - Schierholz, Roland
AU  - Pfeilsticker, Jason
AU  - Müller, Martin
AU  - Lopes, Pietro P.
AU  - Eichel, Rüdiger-A.
AU  - Pivovar, Bryan
AU  - Pylypenko, Svitlana
AU  - Friedrich, K. Andreas
AU  - Lehnert, Werner
AU  - Carmo, Marcelo
TI  - Exploring the Interface of Skin‐Layered Titanium Fibers for Electrochemical Water Splitting
JO  - Advanced energy materials
VL  - 11
IS  - 8
SN  - 1614-6840
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2021-00118
SP  - 2002926
PY  - 2021
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000604739000001
DO  - DOI:10.1002/aenm.202002926
UR  - https://juser.fz-juelich.de/record/889212
ER  -