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The separation of xylene isomers still remains an industrially challenging task. Here, porous purine-based metal–organic frameworks (MOFs) have been synthesized and studied for their potential in xylene separations. In particular, Zn(purine)I showed excellent para -xylene/ ortho -xylene separation capability with a diffusion selectivity of 6 and high equilibrium adsorption selectivity as indicated by coadsorption experiments. This high selectivity is attributed to the shape and size of the channel aperture within the rigid framework of Zn(purine)I.
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Utility of Immobilized Metal Salens as Electrocatalysts: Fuel Cells and Organic Electrosynthesis
Abstract There have been significant advancements in the electrosynthesis of fuels and organic molecules, making it an increasingly sustainable and cost‐effective alternative to traditional chemical redox reagents. Early versions of these systems faced challenges in chemoselectivity due to high applied overpotentials, which have been mitigated with the introduction of molecular electrocatalysts, like metal salens (MSalens). These MSalens reduce the required overpotentials, increase turnover numbers (TON), and have simple modularity within their ligand structure allowing for tunable selectivity. While these MSalen electrocatalysts are typically used homogeneously for engineering simplicity, downstream separations are often costly and time‐consuming. Immobilization of MSalens addresses these issues by enabling synthesis at lower potentials, achieving high selectivity, and facilitating straightforward separations. This review explores the application of MSalens in electrosynthesis and immobilized molecular electrocatalysts in organic electrosynthesis.
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- Award ID(s):
- 2002158
- PAR ID:
- 10642329
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- ChemElectroChem
- Volume:
- 11
- Issue:
- 24
- ISSN:
- 2196-0216
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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