杂多配合物是一类重要的无机配合物,广泛用于催化、药物、分子材料等诸多领域。杂多配合物导电性研究始于1979年,应用于氢-氧燃料电池等装置中,但随着工作温度提高,其导电性降低,很难作为固体电解质。因此,研究和开发稳定性高、导电性好的新型杂多配合物作为固体电解质,已成为该领域的研究热点。
K7 [ CrCa( OH2 )W11 O39 ] was synthesized by a direct method and thermal diffusing permeation of Gd to the sample was studied with the solld-gas interface reaction. The structure of the sample was characterized by IR, XRD and TG-DTA before and after diffusing permeation. The results show that the Keggin structure has been changed to a new phase after thermal diffusing permeation of rare earth elements. Conductivity of the sample after diffusing permeation was 104 times higher than that of the sample before diffusing permeation. The thermo-stability temperature has been increased 100℃ higher than before.