Oxygen Transfer on Substituted ZrO2, Bi2O3, and CeO2 Electrolytes with Platinum Electrodes. I. Electrode Resistance by D-C Polarization
Oxygen Transfer on Substituted ZrO2, Bi2O3, and CeO2 Electrolytes with Platinum Electrodes. I. Electrode Resistance by D-C Polarization
复制标题
使用铂电极在取代的 ZrO2、Bi2O3 和 CeO2 电解质上进行氧转移。
DOI：
10.1149/1.2119686
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发表时间：
1983
影响因子：
3.9
通讯作者：
A. Burggraaf
中科院分区：
文献类型：
--
作者：
M. Verkerk;W. Hammink;A. Burggraaf
在770-1050 K温度范围内，在10 ~（-5）-1 atm O_2氧分压范围内，用N_2-O_2混合气体，用直流测量法研究了Pt溅射电极和Pt丝网电极在ZrO_2-Y_2 O_3，Bi_2 O_3-Er_2 O_3和CeO_2-Gd_2 O_3固体电解质上的电极行为。在这些不同的材料上，实现了相同的电极形态，并在随后的实验中得以保留。电解质的性质对电极过程有很大的影响。发现Bi_2 O_3-Er_2 O_3上的Pt电极的电极电阻比ZrO_2-Y_2 O_3和CeO_2-Gd_2 O_3上的低许多倍。在氧化锆和二氧化铈基材料上，原子氧在Pt电极上的扩散是电极过程中的速率决定步骤，而对于三氧化二铋基材料，氧化物表面上的扩散是速率决定步骤。
The electrode behavior of Pt-sputtered and PT-gauze electrodes on ZrO2-Y2O3, Bi2O3-Er2O3, and CeO2-Gd2O3 solid electrolyteswas investigated by means of d-c measurements in the temperature region of 770–1050 K and in the oxygen partialpressure region of 10–5 – 1 atm O2 using N2-O2 mixtures. On these different materials the same electrode morphology wasrealized and was preserved during the subsequent experiments. The electrode process is strongly influenced by the natureof the electrolyte. The electrode resistance for Pt electrodes on Bi2O3-Er2O3 was found to be many times lower than onZrO2-Y2O3 and CeO2-Gd2O3. On zirconia- and ceria-based materials diffusion of atomic oxygen on the Pt electrode is therate-determining step in the electrode process, whereas for bismuth sesquioxide-based materials diffusion on the oxidesurfaces is rate determining.