在重水电解槽中Pd-D系统的动态结构测定

REAL-TIME MEASUREMENT OF DYNAMIC STRUCTURE FOR Pd-D SYSTEM IN HEAVY-WATER ELECTROLYSIS CELL

在中国原子能科学研究院重水反应堆旁的中子粉末衍射谱仪上实时地测量了在重水电解槽中Pd-D系统的动态结构。在2θ为34°至95°范围内,分别在电解了0,3和48 A·h小时测定了衍射曲线,观察到Pd-D系统从α相向β相逐渐演变的过程。从(220)面β峰形成的实时测量结果表明,当电解至0.65A·h后,β峰强度已接近饱和值,其后缓慢增加。

The real--time dynamic structure of Pd--D system in D_2O electrolysis cell is measured on neutronprowder diffractometer in CIAE. Diffraction patterns in 2θ range of 34°--95°are obtained under theconditions of electrolysing for 0,3 and 48 A·h respectively, and the gradual transition of Pd--D systemfrom α--phase to β--phase is observed. The real--time measurements of β peak of (220) reflection showthat intensity of β peak almost reaches the saturation point after electrolysing for 0. 65 A·h and increas-es slowly with further electrolysis afterwards.