一种含有六米的 (III) - - 抗,具有良好的质子导电性能
Yahao Sun1, Huafeng Li1, Yan Zou1
1Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China.
Inorganic chemistry
|August 21, 2023
概括
合成了一种新型的含鲁丁 (III) 的抗六合体,具有出色的质子导电性. 这种材料显示出在质子交换膜燃料电池中的应用潜力.
科学领域:
- 无机化学 无机化学
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
背景情况:
- 聚氧甲酸盐 (POMs) 是具有多样性结构和性质的多功能分子构建块.
- 抗蒙酸是POM的一类,在催化和储能方面具有潜在的应用.
- 固态材料中的质子导电性对于燃料电池等电化学设备至关重要.
研究的目的:
- 为了合成一种含有的新型(III) 抗胺六合体.
- 描述合成化合物的结构和质子导电性.
- 为了研究这种材料中质子导电的机制.
主要方法:
- 用于化合物制备的热水合成方法.
- 单晶X射线衍射用于结构分析.
- 在不同温度和湿度下测量质子导电性.
- 激活能量计算以确定导电机制.
主要成果:
- 成功合成了一种新型的六米抗胺,Na16H22[(B-β-SbW9O33) 6(W3RuO7) 2(W4O11) ·118H2O (1).
- 这种聚离子表现出一种独特的环素船形状.
- 化合物1显示出有利的质子导电性 (σ = 5.41 × 10−3 S cm−1 在 333 K 和 55% RH).
- 激活能量 (Ea = 0.40 eV) 表明通过Grotthus机制进行质子导电.
结论:
- 这种含有Ru (III) 的 tungstoantimonate 六合体具有复杂的结构.
- 该化合物具有显著的质子导电性,表明其对电化学应用的潜力.
- 格罗图斯机制控制了这种材料中的质子运输.
相关概念视频
01:22EDTA: Chemistry and Properties
2.0K
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
2.0K
02:58Properties of Transition Metals
26.2K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
26.2K
02:42Valence Bond Theory
8.7K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.7K
02:51Metal-Ligand Bonds
21.0K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
21.0K