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Main Title: Efficient direct seawater electrolysers using selective alkaline NiFe-LDH as OER catalyst in asymmetric electrolyte feeds
Author(s): Dresp, Sören
Thanh, Trung Ngo
Klingenhof, Malte
Brückner, Sven
Hauke, Philipp
Strasser, Peter
Type: Article
Language Code: en
Abstract: Direct seawater electrolysis faces fundamental catalytic and process engineering challenges. Here we demonstrate a promising seawater electrolyser configuration using asymmetric electrolyte feeds. We further investigated the faradaic O2 efficiency of NiFe-LDH in alkalinized Cl−-containing electrolytes in comparison to commercial IrOx-based catalysts. Other than IrOx, NiFe-LDH prevents the oxidation of Cl− and appears highly selective for the oxygen evolution reaction in alkalinized seawater even at cell potentials beyond 3.0 Vcell.
Issue Date: 20-May-2020
Date Available: 26-Jun-2020
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): direct seawater electrolysis
oxygen evolution reaction
Sponsor/Funder: TU Berlin, Open-Access-Mittel - 2020
BMWI, 03EIV041F, Verbundvorhaben: MethQuest - MethFuel - Innovative Methanerzeugung auf Basis Erneuerbarer Quellen; Teilvorhaben: Meerwasserelektrolyse
DFG, 424873219, Einfluss der Katalysator-Träger-Wechselwirkung auf die Aktivität und Stabilität von Wasserspaltungs-Katalysatoren
Journal Title: Energy & Environmental Science
Publisher: Royal Society of Chemistry (RSC)
Publisher Place: Cambridge
Volume: 13
Publisher DOI: 10.1039/D0EE01125H
Page Start: 1725
Page End: 1729
EISSN: 1754-5706
ISSN: 1754-5692
Appears in Collections:FG Technische Chemie » Publications

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