铀桥二聚凯金型多氧金属酸盐及其质子导电性能

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2024-10-04 DOI:10.1039/d4dt02077d

Yuting Wei, Weixin Du, Haiying Wang, Xiaoyue Wang, Keqin Shen, Minghui Xiong, Dongdi Zhang

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引用次数: 0

摘要

我们合成了一种基于凯金型[SbW9O33]9-的三元共轭的新型二聚结构，并对其进行了全面表征。与传统的二聚结构不同，(NH4)10[(SbW9O33)2(UO2)2(H2O)2(SbOH)2]-7H2O（{U2Sb4}）化合物具有两个额外的 Sb3+ 阳离子。{U2Sb4}的成功合成体现了杂原子在结构调整中的重要作用。二聚体与水分子和 NH4+ 形成氢键网络。这有望表现出显著的质子传导性。质子传导研究表明，{U2Sb4}是一种与温度和湿度相关的质子导体，在 85 °C 和 85 % RH 条件下，其传导率高达 2.50 × 10-2 S cm-1。

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Uranium-bridged Dimeric Keggin-type Polyoxometalate and its Proton Conductive Properties

A novel dimeric structure based on the trilacunary Keggin-type [SbW9O33]9− was synthesized and comprehensively characterized. Different from the conventional dimeric structures, the compound (NH4)10[(SbW9O33)2(UO2)2(H2O)2(SbOH)2]·7H2O ({U2Sb4}) features two additional Sb3+ cations. The successful synthesis of {U2Sb4} represents the significant role of heteroatoms in structural modulation. The dimer forms a hydrogen-bonded network with water molecules and NH4+. That is expected to exhibit remarkable proton conductivity. Proton conduction studies revealed that {U2Sb4} was a temperature and humidity dependent proton conductor with conductivity reaching up to 2.50 × 10−2 S cm−1 under 85 °C and 85 % RH condition.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.