We present the first experimental investigation on thermochemical stability of three ternary nickel vanadates, namely, NiVO(s), NiVO(s) and NiVO(s) in the NiO-VO system. The standard molar entropies of formation of the compounds were determined by low temperature heat capacity measurements from 2 to 300 K using relaxation calorimetry. The standard molar enthalpy of formation and molar heat capacities were determined employing high temperature oxide melt solution calorimetry in conjunction with differential scanning calorimetry. Using the experimentally obtained thermochemical data, the standard molar Gibbs energy of formation of these compounds were derived and the corresponding expressions are given as follows:

中文翻译：

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NiO-V2O5体系三元化合物的热力学见解


我们首次对 NiO-VO 体系中三种三元钒酸镍（即 NiVO(s)、NiVO(s) 和 NiVO(s)）的热化学稳定性进行了实验研究。使用弛豫量热法通过 2 至 300K 的低温热容测量来确定化合物形成的标准摩尔熵。采用高温氧化物熔体溶液量热法结合差示扫描量热法测定标准摩尔生成焓和摩尔热容。利用实验获得的热化学数据，推导出这些化合物的标准摩尔吉布斯生成能，并给出相应的表达式如下：