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在25~50℃的温度范围内,测定了钯氘化物(PdD0.6)的放氘动力学曲线。结果表明:钯氘化物在室温附近可实现快速放氘,放氘反应速率随温度升高而增加;在相同温度下,随着放氘压力接近于该温度下的放氘平衡压,放氘速率逐渐减小;钯氘化物的放氘动力学受化学吸附的氘原子在钯表面复合过程的控制,放氘反应速率常数与温度之间满足Arrhenius关系;放氘反应的活化能为30.02kJ·mol-1·D2-1。
Deuterium deuterium kinetics curves of palladium deuteride (PdD0.6) were measured in the temperature range of 25 ~ 50 ℃. The results show that deuterium can be rapidly released near the room temperature and the deuterium reaction rate increases with increasing temperature. At the same temperature, with the deuterium pressure close to the deuterium equilibrium pressure at this temperature, the deuterium rate The deuterium kinetics of palladium deuteride was controlled by the chemisorption of deuterium atoms on the surface of palladium complex, and the Arrhenius relation between deuterium reaction rate constant and temperature was obtained. The activation energy of deuterium reaction was 30.02 kJ · mol -1 · D2-1.