Journal article
Cr- and Ti-Based Spinels as Materials for Anodic Catalyst Support in PEM Electrolysis Cells: Assessing Corrosion Stability and Support Role in Catalyst Activity of Corrosion Stable Ceramics
In
E C S Transactions
—
2018, Volume 85, Issue 11, pp. 65-77
Abstract
This work aims to determine the stability of Cr- and Ti- based spinels as catalyst supports for oxygen evolution reaction (OER) catalyst in PEM electrolyzers (PEMECs). Different compositions of MCr2O4 (M=Ni, NiFe, Zn, Mg) and MTi2O4 (Li, Mg, Mn) have been synthesized by solid state synthesis. Pure and doped Cr-based spinels exhibit low conductivities at the operating temperatures of PEMECs (1.5 V vs SHE.
LiTi2O4 is completely oxidized upon cycling up to 2.0 V vs SHE. Mixtures of IrO2/oxide support deposited on glassy carbon were tested toward OER, which showed a 10% higher absolute current at 2.0 V vs SHE in the case of IrO2/Cu-MnCr2O4 compared with pure IrO2.
| Language: | English |
|---|---|
| Publisher: | The Electrochemical Society |
| Year: | 2018 |
| Pages: | 65-77 |
| ISSN: | 19386737 and 19385862 |
| Types: | Journal article |
| DOI: | 10.1149/08511.0065ecst |
| ORCIDs: | 0000-0002-5525-9779 , Hansen, K. K. and Mogensen, M. B. |
