类磷灰石型铅钆钒锗酸盐的合成、晶体结构和热力学性质

IF 0.5 Q4 CHEMISTRY, MULTIDISCIPLINARY

Journal of Siberian Federal University. Chemistry Pub Date : 2022-03-01 DOI:10.17516/1998-2836-0277

L. T. Denisova

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引用次数: 0

摘要

用PbO、Gd2O3、GeO2和V2O5的化学测量混合物在773 ~ 1073 K的空气中焙烧，采用固相法合成Pb10-xGdx(GeO4)2+x(VO4)4-x (x = 0.5, 1.0)磷灰石。用X射线衍射分析确定了它们的晶体结构。采用差示扫描量热法测定高温热容(350 ~ 1000 K)。利用实验数据Cp = f (T)计算磷灰石的热力学性质

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Synthesis, Crystal Structure and Thermodynamic Properties of Apatite-like Lead Gadolinium Vanadato-germanates

The Pb10-xGdx(GeO4)2+x(VO4)4-x (x = 0.5, 1.0) apatites were synthesized by the solid-phase synthesis by roasting stoichiometric mixtures of PbO, Gd2O3, GeO2, and V2O5 in air at temperatures of 773–1073 K. Their crystal structure was determined using X‑ray diffraction analysis. The high-temperature heat capacity (350–1000 K) was measured by differential scanning calorimetry. The experimental data Cp = f (T) were used to calculate the thermodynamic properties of apatites

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来源期刊

Journal of Siberian Federal University. Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

0.00%

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