TY  - JOUR
AU  - Elumeeva, Karina
AU  - Masa, Justus
AU  - Tietz, Frank
AU  - Yang, Fengkai
AU  - Xia, Wei
AU  - Muhler, Martin
AU  - Schuhmann, Wolfgang
TI  - A Simple Approach towards High-Performance Perovskite-Based Bifunctional Oxygen Electrocatalysts
JO  - ChemElectroChem
VL  - 3
IS  - 1
SN  - 2196-0216
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2016-03349
SP  - 138 - 143
PY  - 2016
AB  - To accelerate the large-scale commercialization of electrochemical energy storage and conversion technologies through water splitting and regeneration in reversible fuel cells, cost-effective, highly efficient, and durable reversible oxygen electrodes are required. We report a comparatively simple approach to modify a group of oxygen-evolving perovskites based on lanthanum cobaltite into effective bifunctional systems through partial atom substitution, which, upon intermixing with nitrogen-doped carbon nanotubes, achieve remarkably low round-trip overvoltage of <850 mV in the electrocatalysis of oxygen reduction and oxygen evolution in an alkaline electrolyte, KOH (0.1 m). Besides the bifunctional electrocatalytic performance, the composite systems with a low Fe content possessed promising long-term stability.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000371253500018
DO  - DOI:10.1002/celc.201500353
UR  - https://juser.fz-juelich.de/record/810760
ER  -