Abstract

The standard formation enthalpy of the Bi_12.5Er_1.5CoO_22.3 phase has been determined as following: Δ_fH⁰(Bi_12.5Er_1.5CoO_22.3, s, 298.15 K) = −5203.9 ± 14.5 kJ mol^–1. Solution calorimetry, using 1 mol dm^–3 HCl as a solvent, has been used to study the thermochemistry of Bi_12.5Er_1.5CoO_22.3. The lattice energy for Bi_12.5Er_1.5CoO_22.3 has been calculated on the basis of Born-Haber cycle using the standard formation enthalpy of the phase and literature data. For the first time, we measured the magnetic characteristics of Bi_12.5Er_1.5CoO_22.3 and established that the Bi_12.5Er_1.5CoO_22.3 phase has paramagnetic properties.

中文翻译：

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基于铋，Er和钴的混合氧化物的热力学和磁特性

摘要

Bi _12.5 Er _1.5 CoO _22.3相的标准形成焓已确定如下：_Δf H ⁰（Bi _12.5 Er _1.5 CoO _22.3，s，298.15 K）= -5203.9±14.5 kJ mol ^–1。使用1 mol dm ^–3 HCl作为溶剂的溶液量热法已用于研究Bi _12.5 Er _1.5 CoO _22.3的热化学。Bi _12.5 Er _1.5 CoO _22.3的晶格能使用相的标准形成焓和文献数据，在Born-Haber循环的基础上计算出α值。我们首次测量了Bi _12.5 Er _1.5 CoO _22.3的磁特性，并确定Bi _12.5 Er _1.5 CoO _22.3相具有顺磁特性。