Abstract
The changes in interface structure and chemical composition of a 99.995% pure nickel/yttria-stabilised zirconia (YSZ) interface were examined after heat treatment at 1000 °C in 97% H2/3% H2O with and without polarisation. Impedance spectroscopy was used for electrochemical characterisation. The results were compared to earlier investigations of a less pure nickel/YSZ interface.
The pure interface developed different structures depending on whether or not the samples were polarised. Despite the purity of the nickel, impurities were found in the interfacial region. The pure electrodes/interfaces showed area specific polarisation resistances 10 times lower than the impure interfaces.
The pure interface developed different structures depending on whether or not the samples were polarised. Despite the purity of the nickel, impurities were found in the interfacial region. The pure electrodes/interfaces showed area specific polarisation resistances 10 times lower than the impure interfaces.
| Original language | English |
|---|---|
| Pages (from-to) | 27-37 |
| Journal | Solid State Ionics |
| Volume | 160 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2003 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
Subject classification (UKÄ)
- Chemical Sciences
Free keywords
- Foreign phases
- Polarisation resistance
- Ni–YSZ interface
- SOFC
- Anode
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