Research output: Contribution to journal › Article › peer-review
Atomic layer deposition for efficient oxygen evolution reaction at Pt/Ir catalyst layers. / Schlicht, Stefanie; Percin, Korcan; Kriescher, Stefanie; Hofer, André; Weidlich, Claudia; Wessling, Matthias; Bachmann, Julien.
In: Beilstein Journal of Nanotechnology, Vol. 11, 22.06.2020, p. 952-959.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Atomic layer deposition for efficient oxygen evolution reaction at Pt/Ir catalyst layers
AU - Schlicht, Stefanie
AU - Percin, Korcan
AU - Kriescher, Stefanie
AU - Hofer, André
AU - Weidlich, Claudia
AU - Wessling, Matthias
AU - Bachmann, Julien
N1 - Funding Information: This research was funded by the German Ministry of Education and Research (BMBF) in the projects 'TubulAir?' and 'Tubulyze' (project numbers 03SF0436G and 03SF0564A). The authors thank Karin Faensen for the SEM-EDX measurements and Prof. Wolfgang Peukert and Paula Hoppe for ICPOES analysis. Publisher Copyright: © 2020 Schlicht et al. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/6/22
Y1 - 2020/6/22
N2 - We provide a direct comparison of two distinct methods of Ti felt surface treatment and Pt/Ir electrocatalyst deposition for the positive electrode of regenerative fuel cells and vanadium-air redox flow batteries. Each method is well documented in the literature, and this paper provides a direct comparison under identical experimental conditions of electrochemical measurements and in identical units. In the first method, based on classical engineering, the bimetallic catalyst is deposited by dip-coating in a precursor solution of the salts followed by their thermal decomposition. In the alternative method, more academic in nature, atomic layer deposition (ALD) is applied to the felts after anodization. ALD allows for a controlled coating with ultralow noble-metal loadings in narrow pores. In acidic electrolyte, the ALD approach yields improved mass activity (557 A·g-1 as compared to 80 A·g-1 at 0.39 V overpotential) on the basis of the noble-metal loading, as well as improved stability.
AB - We provide a direct comparison of two distinct methods of Ti felt surface treatment and Pt/Ir electrocatalyst deposition for the positive electrode of regenerative fuel cells and vanadium-air redox flow batteries. Each method is well documented in the literature, and this paper provides a direct comparison under identical experimental conditions of electrochemical measurements and in identical units. In the first method, based on classical engineering, the bimetallic catalyst is deposited by dip-coating in a precursor solution of the salts followed by their thermal decomposition. In the alternative method, more academic in nature, atomic layer deposition (ALD) is applied to the felts after anodization. ALD allows for a controlled coating with ultralow noble-metal loadings in narrow pores. In acidic electrolyte, the ALD approach yields improved mass activity (557 A·g-1 as compared to 80 A·g-1 at 0.39 V overpotential) on the basis of the noble-metal loading, as well as improved stability.
KW - Atomic layer deposition (ALD)
KW - Oxygen evolution reaction (OER)
KW - Redox flow battery
KW - Vanadium-air redox flow battery (VARFB)
KW - atomic layer deposition (ALD)
KW - redox flow battery
KW - vanadium-air redox flow battery (VARFB)
KW - REDUCTION
KW - oxygen evolution reaction (OER)
KW - BEHAVIOR
KW - ELECTRODES
KW - ELECTROCATALYSTS
UR - http://www.scopus.com/inward/record.url?scp=85089346780&partnerID=8YFLogxK
U2 - 10.3762/bjnano.11.79
DO - 10.3762/bjnano.11.79
M3 - Article
AN - SCOPUS:85089346780
VL - 11
SP - 952
EP - 959
JO - Beilstein Journal of Nanotechnology
JF - Beilstein Journal of Nanotechnology
SN - 2190-4286
ER -
ID: 70656429