Mateyshina Yulia G, Alekseev Dmitriy V, Uvarov Nikolai F
Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze 18, 630090 Novosibirsk, Russia.
Department of Natural Sciences, Novosibirsk State University, Pirogova, 2, 630090 Novosibirsk, Russia.
Nanomaterials (Basel). 2021 Feb 5;11(2):414. doi: 10.3390/nano11020414.
Composite solid electrolytes (1-x) CsNO-xND, where ND are nanodiamonds, including those after liquid-phase and gas-phase oxidation and reduction functionalization, were prepared, and their properties investigated by XRD, analysis of BET nitrogen adsorption isotherms, IR spectroscopy and impedance spectroscopy. The electrical conductivity of composites (1-x) CsNO-xND obeys the Arrhenius dependence and has a maximum at x = 0.95 regardless of the ND pretreatment. It was found that the conductivity depends on the mode of functionalization of the ND surface, as well as on the processing time. The electrical conductivity of composites with ND, processed by the gas-phase method, is 1.5-2.6 times higher than that of composites with initial ND, in which the conductivity is 2 orders of magnitude higher than that of pure cesium nitrate. Thus, the possibility of using ND as an effective heterogeneous additive for the preparation of composite solid electrolytes, including cesium nitrite, has been demonstrated for the first time.
制备了复合固体电解质(1 - x)CsNO - xND，其中ND为纳米金刚石，包括经过液相和气相氧化还原功能化后的纳米金刚石，并通过X射线衍射、BET氮吸附等温线分析、红外光谱和阻抗谱对其性能进行了研究。复合材料(1 - x)CsNO - xND的电导率服从阿伦尼乌斯关系，且无论ND的预处理如何，在x = 0.95时达到最大值。发现电导率取决于ND表面的功能化模式以及处理时间。通过气相法处理的含ND复合材料的电导率比含初始ND的复合材料高1.5 - 2.6倍，其中初始ND复合材料的电导率比纯硝酸铯高2个数量级。因此，首次证明了使用ND作为制备包括亚硝酸铯在内的复合固体电解质的有效非均相添加剂的可能性。
