Electronic state, abundance and microenvironment modulation of Ru nanoclusters within hierarchically porous UiO-66(Ce) for efficient hydrogenation of dicyclopentadiene

Defect Engineering in Ce-Based Metal–Organic Frameworks toward Enhanced Catalytic Performance for Hydrogenation of Dicyclopentadiene

“…Highly active precious metal-loaded MOF catalysts, such as Ru/UiO-66(Ce) and Pt NCs@Ce-PyDC-3, have demonstrated exceptional DCPD conversion (up to 100%) and selectivity toward the desired THDCPD (up to 99%). 24,25 However, the performance of the pristine MOF catalysts is generally lower. For example, a Ce-UiO-66-F-200 MOF catalyst was able to achieve a DCPD conversion of 96.9%, but no THDCPD was obtained.…”

“…The unique electronic and coordination properties of the rare-earth metal center appear to be critical in facilitating the complete hydrogenation of DCPD to the desired THDCPD product. 24,25 In order to gain insight into the structural stability of Ce-MOF-801-neq samples, we performed XRD characterization of all of the samples after the hydrogenation reaction (Figure S2a). The results show that the structures of all Ce-MOF-801neq samples maintain the consistency with the MOFs, which implies that the overall structure of the MOFs is effectively maintained during the reaction process.…”

“…While the catalytic performance of the synthesized Ce-MOF-801-50eq catalysts is noteworthy, it is important to benchmark their activity against other MOF-based catalysts reported in the literature for the hydrogenation of DCPD. Highly active precious metal-loaded MOF catalysts, such as Ru/UiO-66­(Ce) and Pt NCs@Ce-PyDC-3, have demonstrated exceptional DCPD conversion (up to 100%) and selectivity toward the desired THDCPD (up to 99%). , However, the performance of the pristine MOF catalysts is generally lower. For example, a Ce-UiO-66-F-200 MOF catalyst was able to achieve a DCPD conversion of 96.9%, but no THDCPD was obtained .…”

“…18−23 For example, Ru/UiO-66(Ce) and Pt NCs@Ce-PyDC-3 can completely convert DCPD into THDCPD, but the high cost and limited availability of these precious metal species present significant obstacles for large-scale industrial applications. 24,25 In contrast, leveraging the intrinsic catalytic properties of MOFs themselves as the active materials rather than solely relying on them as support matrices for precious metal nanoparticles offers a more sustainable and cost-effective approach.…”

“…Metal–organic frameworks (MOFs) as a novel kind of porous material have shown potential prospects in the catalysis field due to their advantages such as a high specific surface area and an easily tunable structure. − Currently, most research has focused on loading precious metal particles onto metal–organic frameworks (MOFs) to enhance catalytic activity. − For example, Ru/UiO-66­(Ce) and Pt NCs@Ce-PyDC-3 can completely convert DCPD into THDCPD, but the high cost and limited availability of these precious metal species present significant obstacles for large-scale industrial applications. , In contrast, leveraging the intrinsic catalytic properties of MOFs themselves as the active materials rather than solely relying on them as support matrices for precious metal nanoparticles offers a more sustainable and cost-effective approach.…”