自从1989年Fleischman及Pons发表了用钯阴极电解重水诱导室温核聚变(又叫“冷核聚变”)以来,多数学者对其实验结果持怀疑态度,但研究电解重水过程中氘在钯电极中的行为以及氘和氢性质之间的差异,对了解电化学诱导室温核聚变和氘及氢的贮存与利用都有重要的意义.本文用电化学渗氢技术比较了氘及氢在钯中的吸收和扩散等行为,用正电子湮没技术研究了电解前后钯中电子结构及其缺陷电子结构的变化. Since 1989, when Fleischman and Pons published room temperature nuclear fusion (also called “cold fusion”) using palladium cathodic electrolysis of heavy water, most scholars are skeptical of their experimental results. However, the study of deuterium in palladium electrodes during electrolysis of heavy water Behavior and the difference between deuterium and hydrogen properties are of great significance for understanding the electrochemical induced room temperature nuclear fusion and the storage and utilization of deuterium and hydrogen.This paper compares the absorption of deuterium and hydrogen in palladium by electrochemical hydrogen permeation And diffusion, the positron annihilation technique was used to study the electronic structure of palladium and its electronic structure before and after electrolysis.