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          Institute: MPI für bioanorganische Chemie     Collection: MPI für bioanorganische Chemie     Display Documents

ID: 733902.0, MPI für bioanorganische Chemie / MPI für bioanorganische Chemie
Microwave-Assisted Synthesis of Stable and Highly Active Ir Oxohydroxides for Electrochemical Oxidation of Water
Authors:Massue, Cyriac; Huang, Xing; Tarasov, Andrey; Ranjan, Chinmoy; Cap, Sebastian; Schlögl, Robert
Date of Publication (YYYY-MM-DD):2017
Title of Journal:ChemSusChem
Journal Abbrev.:ChemSusChem
Issue / Number:9
Start Page:1958
End Page:1968
Review Status:Internal review
Audience:Experts Only
Abstract / Description:Water splitting for hydrogen production in acidic media has been limited by the poor stability of the anodic electrocatalyst devoted to the oxygen evolution reaction (OER). To help circumvent this problem we have synthesized a class of novel Ir oxohydroxides by rapid microwave-asisted hydrothermal synthesis, which bridges the gap between electrodeposited amorphous IrOx films and crystalline IrO2 electrocatalysts prepared by calcination routes. For electrode loadings two orders of magnitude below current standards, the synthesized compounds present an unrivalled combination of high activity and stability under commercially relevant OER conditions in comparison to reported benchmarks, without need for pretreatment. The best compound achieved a lifetime 33times longer than the best commercial Ir benchmark. Thus, the reported efficient synthesis of an Ir oxohydroxide phase with superior intrinsic OER performance constitutes a major step towards the targeted design of cost-efficient Ir based OER electrocatalysts for acidic media.
Comment of the Author/Creator:Date: 2017, MAY 9 2017
External Publication Status:published
Document Type:Article
Version Comment:Automatic journal name synchronization
Communicated by:N. N.
Affiliations:MPI für bioanorganische Chemie
Identifiers:ISI:000401165900012 [ID No:1]
ISSN:1864-5631 [ID No:2]
DOI:10.1002/cssc.201601864 [ID No:3]
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