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Catalysis, by amorphous carbon, of H_2 attack on oxidized U-0.1 wt% Cr surfaces

机译:非晶碳催化H_2侵蚀氧化的U-0.1 wt%Cr表面

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摘要

Amorphous carbon, evaporated on a thin oxide layer covered U-0.1 wt% Cr sample, was proven to significantly catalyze H_2 reaction with the metal. A hydride was formed preferentially on the carbon-covered surface, for vacuum pretreatment temperatures of 150 and 190℃ and hydrogen reactions of 150 and 90℃, respectively. Dependence of the reaction rate on the thickness of the layer was observed.
机译:事实证明,在覆盖U-0.1 wt%Cr样品的薄氧化物层上蒸发的无定形碳可显着催化H_2与金属的反应。分别在150和190℃的真空预处理温度和150和90℃的氢气反应下,优先在碳覆盖的表面上形成氢化物。观察到反应速率对层厚度的依赖性。

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