基于的电化学介导合成金属有机框架
Alexandra M Antonio1, Joel Rosenthal1, Eric D Bloch1
1Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States.
Journal of the American Chemical Society
|July 10, 2019
概括
研究人员开发了一种新的电合成方法,以创建高质量的基于的金属有机框架 (MOF). 这种方法使用廉价的前体,并为先进的MOF材料提供更容易获得的途径.
科学领域:
- 材料科学
- 无机化学
- 电化学
背景情况:
- 具有协调不和位点的金属有机框架 (MOF) 是常见的,但具有氧化还原活性的框架很少见.
- 现有的合成基MOF的方法通常依赖于昂贵和对空气敏感的前体,如TiCl3.
研究的目的:
- 开发一种高效且具有成本效益的电合成方法来制备基于的MOF.
- 为了证明Ti (III) -MIL-101,Ti (III) -MIL-100和新的扩展Ti (III) -MIL结构的合成.
- 用氧化还原活性金属制造MOF的新方法.
主要方法:
- 电催化降解Ti4+前体 (TiCl4) 以在现场产生Ti3+物种.
- 使用电化学生成的Ti3+形成MOF结构的溶热合成.
- 使用各种物理方法 (例如,XRD,BET) 合成的MOF的特征.
主要成果:
- 与TiCl3制成的样本相比,成功合成了具有相同结构和更高质量的Ti(III) -MIL-101.
- 通过电合成实现了第一个Ti (III) -MIL-100和两个新的扩展Ti (III) -MIL结构.
- 证明了电合成MOF的优势,而不是传统的MOF.
结论:
- 电化学调解提供了一种简单,具有成本效益和可扩展的高质量的基于的MOF.
- 这种方法克服了与昂贵和敏感的前体相关的局限性.
- 开发的电合成策略是多用途的,适用于各种桥接联体,为新型氧化还原活性MOF合成铺平了道路.
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