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CO sensitivity of the PtO/SnO_2 and PdO/SnO_2 layer structures: Kelvin probe and XPS analysis

机译:PtO / SnO_2和PdO / SnO_2层结构的CO敏感性:开尔文探针和XPS分析

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摘要

The CO sensitivity of Pt(NH_3)_2(NO_2)_2 and Pd(NH_3)_2(NO_2)_2 impregnated SnO_2 thick layers was measured by following the work function change, at 90℃. The complexes were decomposed by heat treatments in air, in the temperature range of 150―350 ℃. The composition of the surface layer was studied by XPS. The maximum CO sensitivity, the optimal response and recovery times-measured by Kelvin probe―were found, if PtO or PdO were present on the surface.
机译:随功函数变化,在90℃下测量了Pt(NH_3)_2(NO_2)_2和Pd(NH_3)_2(NO_2)_2浸渍的SnO_2厚层的CO敏感性。在150〜350℃的温度范围内,在空气中进行热处理,使配合物分解。通过XPS研究了表面层的组成。如果表面上存在PtO或PdO,则会发现用Kelvin探针测量的最大CO灵敏度,最佳响应和恢复时间。

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