Material changes in yttrium-doped barium zirconate, BaZr0.8Y0.2O3–x, were studied using in situ Raman spectroscopy and ex situ x-ray photoelectron spectroscopy analysis. During in situ Raman analysis, samples were heated to temperatures of 300–600 °C and exposed to both dry and humidified H2 atmospheres. At the lower temperatures (300–450 °C), a new vibrational peak appears in the Raman spectra during exposure to humidified H2. The appearance of this feature is reversible, dependent on previous sample history, and possibly results from new, secondary phase formation or lattice distortion.

中文翻译：

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高温下氧化钇稳定的锆酸钡表面反应性

使用原位拉曼光谱和非原位X射线光电子能谱分析研究了钇掺杂锆酸钡BaZr 0.8 Y 0.2 O 3– x的材料变化。在原位拉曼分析期间，将样品加热到300–600°C的温度，并暴露于干燥和潮湿的H 2气氛中。在较低的温度下（300–450°C），在暴露于加湿的H 2期间，拉曼光谱中会出现一个新的振动峰。此功能的出现是可逆的，取决于先前的采样历史，并且可能是由于新的次级相形成或晶格畸变导致的。