Details
| Original language | English |
|---|---|
| Pages (from-to) | 2673-2679 |
| Number of pages | 7 |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 4 |
| Issue number | 12 |
| Publication status | Published - 14 May 2002 |
Abstract
Employing photoelectron emission microscopy (PEEM) and scanning photoelectron microscopy (SPEM) the surface reduction of zirconia solid electrolyte under cathodic polarisation has been observed in situ. A microstructured platinum film and a porous platinum paste have been used as electrodes. Starting from the three phase boundary (tpb) between platinum, solid electrolyte and the gas phase, a reduction front was detected in PEEM by a significant local work function decrease. Local XPS shows that zirconia has been reduced behind the front, resulting in the presence of Zr atoms in a low oxidation state and Zr0.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Physical Chemistry Chemical Physics, Vol. 4, No. 12, 14.05.2002, p. 2673-2679.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Microspectroscopy at a moving reduction front in zirconia solid electrolyte
AU - Luerßen, B.
AU - Janek, J.
AU - Günther, S.
AU - Kiskinova, M.
AU - Imbihl, R.
PY - 2002/5/14
Y1 - 2002/5/14
N2 - Employing photoelectron emission microscopy (PEEM) and scanning photoelectron microscopy (SPEM) the surface reduction of zirconia solid electrolyte under cathodic polarisation has been observed in situ. A microstructured platinum film and a porous platinum paste have been used as electrodes. Starting from the three phase boundary (tpb) between platinum, solid electrolyte and the gas phase, a reduction front was detected in PEEM by a significant local work function decrease. Local XPS shows that zirconia has been reduced behind the front, resulting in the presence of Zr atoms in a low oxidation state and Zr0.
AB - Employing photoelectron emission microscopy (PEEM) and scanning photoelectron microscopy (SPEM) the surface reduction of zirconia solid electrolyte under cathodic polarisation has been observed in situ. A microstructured platinum film and a porous platinum paste have been used as electrodes. Starting from the three phase boundary (tpb) between platinum, solid electrolyte and the gas phase, a reduction front was detected in PEEM by a significant local work function decrease. Local XPS shows that zirconia has been reduced behind the front, resulting in the presence of Zr atoms in a low oxidation state and Zr0.
UR - http://www.scopus.com/inward/record.url?scp=0036268881&partnerID=8YFLogxK
U2 - 10.1039/b109893d
DO - 10.1039/b109893d
M3 - Article
AN - SCOPUS:0036268881
VL - 4
SP - 2673
EP - 2679
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 12
ER -