Abstract Single-phase polycrystalline Li2PdO3 has been synthesized at 640 C in oxygen for the first time under ambient pressure. X-ray and neutron diffraction analyses show that the sample possesses a monoclinic layered structure belonging to the C2/m space group. Rietveld refinements of neutron powder diffraction data indicate ~10% Li–Pd site exchange and DIFFaX modelling manifest ~2% stacking faults present within LiPd2 layers. A band gap of ~2.23 eV was calculated for the golden Li2PdO3 using absorbance measurements. Thermogravimetric analysis of the sample shows that Li2PdO3 is stable up to 730 C under oxygen. A Curie tail is observed at low temperature magnetic measurements (T

中文翻译：

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层状蜂窝状 Li2PdO3 的环境压力合成与表征

摘要 单相多晶 Li2PdO3 首次在氧气中于 640 ℃、常压下合成。X射线和中子衍射分析表明样品具有属于C2/m空间群的单斜层状结构。中子粉末衍射数据的 Rietveld 改进表明，约 10% 的 Li-Pd 位点交换和 DIFFaX 建模表明，LiPd2 层中存在约 2% 的堆垛层错。使用吸光度测量计算出金 Li2PdO3 的带隙约为 2.23 eV。样品的热重分析表明，Li2PdO3 在氧气下可稳定到 730 摄氏度。在低温磁测量 (T