Cerium has a rich chemistry, which depends strongly on its oxidation state. Ce(III) exhibits properties typically observed for rare earth elements, while Ce(IV) is mostly known for its oxidation behaviour. In MOF chemistry this is reflected in their unique optical and catalytic properties.

2021年4月5日 · In this study, nanocrystals of a cerium-based metal–organic framework (Ce-MOF), Ce-MOF-808, are directly grown on the surface of carboxylic acid-functionalized carbon nanotubes (CNTs) by a facile one-step solvothermal synthesis method.

2023年1月2日 · Ce-MOF consists of a Lewis acid moiety, i.e. Ce 3+ and triphenylamine cores. It showed Fenton-like properties with excellent catalytic oxidation activity for olefins, primary/secondary alcohols, and water pollutants e.g., organic dyes. It displayed high oxidation conversion of cinnamyl alcohol and styrene of 100% and 53%, respectively.

2021年9月1日 · Ce (IV)-based MOFs can be successfully synthesized in water at room temperature. Solvent mixture or modulators can improve the crystallinity of these Ce (IV)-MOFs. As a proof of concept, UiO-66 (Ce), UiO-66 (Ce)-Fum and Ce-MOF-808 were prepared. There is a growing interest in the sustainable synthesis of Metal-Organic Framework materials (MOFs).

2024年7月23日 · In this study, sonophotocatalytic degradation of tetracycline (TC) by the Cerium-based MOF (Ce-MOF) is optimized by modification of its synthesis route. Ce-MOF synthesis by room...

2025年2月27日 · The dye adsorption experiments revealed that the activated sample by acetone (Ce-MOF-4) exhibited the highest adsorption capacities toward both anionic (270.27 mg/g for Congo Red (CR)) and ...

2021年4月14日 · In this study, nanocrystals of a cerium-based metal-organic framework (Ce-MOF), Ce-MOF-808, are directly grown on the surface of carboxylic acid-functionalized carbon nanotubes (CNTs) by a facile one-step solvothermal synthesis method. Ce-MOF-CNT nanocomposites with various Ce-MOF-to-CNT ratios are …

研究者采用了一步部分氧化策略对原始Ce-MOFs进行修饰，制备出具有Ce3+/Ce4+混合价态的新Ce-MOFs（MV-Ce-MOFs）。 这种混合价态的Ce节点可以有效扩展材料对可见光的吸收，暴露更多的催化活性位点，并抑制光生电荷的复合。 结果表明，MV-Ce-MOFs在可见光照射下表现出高效的光催化O2进化活性，其在405 nm单色光照射下表现出1.6%的显著表观量子效率（AQY）。 MOF金属节点价态的调控工程为设计基于MOF的光催化剂提供了新的范例。 1. 水分解产氢和 …

2020年10月8日 · Cerium-based metal–organic frame (Ce-MOF) was successfully synthesized by a simple, cost-effective and green route. Highly homogeneous topology, nano-sized crystals, stable oxidation states Ce(III) and Ce(IV) at room temperature, significant surface area and thermal stability up to 320°C are the notable properties achieved by Ce-MOF.

本文开发了一种前驱体方法，用于合成无法直接从铈 (IV)盐类直接制备的Ce (IV) MOFs。 该方法从Ce6簇开始，成功合成了两种Ce-UiO-66类似物和四种基于四羧酸的Ce (IV) MOFs。 该方法通过避免反应性单个Ce (IV)离子，促进了框架的形成，为Ce-MOFs的进一步发展铺平了道路。 1）传统的MOFs合成方法在制备Ce (IV)基MOFs时存在挑战，因为Ce (IV)是一个强氧化剂，在合成过程中容易被还原，导致MOFs的节点含有Ce (III)而非所需的Ce (IV)。 2）已有研究通过使用不同的金 …