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Main Title: Stannites – a new promising class of durable electrocatalysts for efficient water oxidation
Author(s): Hausmann, Jan Niklas
Heppke, Eva Maria
Beltrán-Suito, Rodrigo
Schmidt, Johannes
Mühlbauer, Martin
Lerch, Martin
Menezes, Prashanth Wilfried
Drieß, Matthias
Type: Article
Abstract: The oxygen evolution reaction (OER) through water oxidation is a key process for multiple energy storage technologies required for a sustainable energy economy such as the formation of the fuel hydrogen from water and electricity, or metal‐air batteries. Herein, we investigate the suitability of Cu2FeSnS4 for the OER and demonstrate its superiority over iron sulfide, iron (oxy)hydroxides and benchmark noble‐metal catalysts in alkaline media. Electrodeposited Cu2FeSnS4 yields the current densities of 10 and 1000 mA/cm2 at overpotentials of merely 228 and 330 mV, respectively. State‐of‐the‐art analytical methods are applied before and after electrocatalysis to uncover the fate of the Cu2FeSnS4 precatalyst under OER conditions and to deduce structure‐activity relationships. Cu2FeSnS4 is the first compound reported for OER among the broad class of stannite structure type materials containing multiple members with highly active earth‐abundant transition‐metals for OER.
Subject(s): oxygen evolution reaction
water splitting
iron (Fe) oxyhydroxide
in situ transformation
Issue Date: 9-Jan-2020
Date Available: 26-Feb-2020
Is Part Of: 10.14279/depositonce-11220
Language Code: en
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Sponsor/Funder: DFG, 390540038, EXC 2008: Cluster of Excellence UniSysCat
TU Berlin, Open-Access-Mittel - 2019
Journal Title: ChemCatChem
Publisher: Wiley
Volume: 12
Issue: 4
Publisher DOI: 10.1002/cctc.201901705
Page Start: 1161
Page End: 1168
EISSN: 1867-3899
ISSN: 1867-3880
TU Affiliation(s): Fak. 2 Mathematik und Naturwissenschaften » Inst. Chemie » FG Metallorganische Chemie und Anorganische Materialien
Appears in Collections:Technische Universität Berlin » Publications

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