联体功能化的MIL-68型 (III) 金属有机框架具有突出的内在质子导电性
Yong-Jie Song1, Ya-Li Sang2,3, Kai-Yin Xu1
1College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China.
Inorganic chemistry
|February 20, 2024
概括
研究人员合成了五种新的基于的金属有机框架 (In-MOFs),具有出色的结构稳定性. 这些材料显示出有希望的水介导质子导电性,受温度,湿度和有机功能群的影响.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 有孔的材料有孔的材料
- 质子导电 质子导电
背景情况:
- 基于的金属有机框架 (In-MOFs) 是具有各种结构和应用的有吸引力的多孔固体.
- 开发具有增强质子导电性质的晶体MOF对于先进的电化学设备至关重要.
- 功能化有机链接器提供了一个调整MOF属性的途径.
研究的目的:
- 为了高效地制造五个同结构的,三维的In-MOF,使用铁酸及其功能化衍生物.
- 研究合成的In-MOFs的结构稳定性,包括热和水稳定性.
- 综合评估和比较这些新型In-MOFs的水介导质子导电性.
主要方法:
- 使用基于铁酸的链接剂制造五种同结构的In-MOF (MIL-68-In和MIL-68-In-X,其中X=NH2,OH,Br或NO2).
- 通过热分析和粉末X射线衍射来验证结构稳定性.
- 在不同温度和相对湿度 (RH) 条件下评估质子导电性 (σ).
主要成果:
- 所有五种合成的In-MOF都表现出极好的热和水稳定性.
- 质子导电性与温度和RH有显著的正相关性.
- 在100°C/98%的RH下,最高的质子导电率达到1.72 × 10−3 S/cm (MIL-68-In-OH),导电率受有机联体的功能群的影响.
结论:
- 合成的In-MOF具有显著的结构刚性和有前途的质子导电性.
- 有机链接器上的功能组显著影响质子导电性质.
- 这些In-MOF代表了未来电化学应用的有价值的材料基础,特别是在质子导电中.
更多相关视频
11:38In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework
Published on: February 1, 2020
15.9K
04:51Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
Published on: June 23, 2023
2.9K
相关概念视频
02:51Metal-Ligand Bonds
20.8K
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...
20.8K
01:23Properties of Organometallic Compounds
996
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
996