多孔钯的制备及其结构与性能

Process, Microstructures and Properties of Porous Palladium Materials

摘要:

研究了以钯粉和碳酸钠为原料制备多孔钯的烧结-溶解新工艺，用FESEM分析了多孔钯的微观结构形貌，并进一步研究了制备的多孔钯的力学性能和氢同位素的交排换代性能。结果表明，烧结-溶解工艺能稳定地制备出孔隙率为85．29％-87．82％的多孔钯，其压缩强度大于2MPa。室温下孔隙率为87.30％的多孔钯对氘的单位质量吸收量为0．0767L／g，氢同位素排代交换率为86．2％。

关键词:多孔钯 烧结-溶解 孔隙率 同位素排代

Abstract:

Porous Palladium materials have great importance in the storage, recycle and application of hydrogen isotopes. In this paper, porous Pd materials processed by a newly applied sintering-resolving technology are studied. The microstructures of the porous Pd materials are characterized by FESEM. In addition, their hydrogen isotopes displacement and mechanic properties arc studied. The results show that porous Pd materials with a porosity range from 85.29% to 87.82% can be stably processed by sintering-resolving technology. The compressive strength of the porous Pd materials exceeds 2 MPa. The deuterium absorption amount of the porous Pd material with a porosity of 87.3% is 0.0767 L/g and its hydrogen isotopes displacement ratio is 86.2% at room temperature.

Key words:porous Pd materials; sintering-resolving; porosity; isotope displacement