Microenvironment of MOF Channel Coordination with Pt NPs for Selective Hydrogenation of Unsaturated Aldehydes was written by Zhang, Wenlei;Shi, Wenxiong;Ji, Wenlan;Wu, Haibo;Gu, Zhida;Wang, Peng;Li, Xiaohan;Qin, Peishan;Zhang, Jia;Fan, Yun;Wu, Tianyu;Fu, Yu;Zhang, Weina;Huo, Fengwei. And the article was included in ACS Catalysis in 2020.HPLC of Formula: 106-21-8 The following contents are mentioned in the article:
Surface and interface states of noble metal nanoparticles (MNPs), closely related to the catalytic performance, have been of great concern to academics in the field of catalysis. The catalytic property of MNPs was usually regulated through introducing modifier effects and metal-support effects, and the common nature of these strategies involved either the construction of steric hindrance on the surface of MNPs or the regulation of surface electronic state of MNPs, which inspired us to employ metal-organic frameworks (MOFs) as a support due to their tailorable phys.-chem. environments. Herein, we utilized the MOF matrixes to encapsulate MNPs (MNPs@MOFs) as catalysts which showed good selectivity and high conversion in the hydrogenation reaction of the citronellal mol. Three kinds of Pt@MOF catalysts (Pt@ZIF-8, Pt@ZIF-67, and Pt@UiO-66) with different channel environments (pore size, metal sites, etc.) were designed, and it was found that Pt@ZIF-67 exhibited comparable selectivity (>99%) and higher activity (turnover frequency = 42.28 h-1). The high selectivity toward unsaturated alcs. was derived from the steric effect of the ZIF-67 pore, which regulated the diffusion status of the citronellal mol. in the channels, while the high catalytic activity of MNPs originated from the electronic effect between ZIF-67 and Pt NPs. Such results were also validated by the mol. dynamic simulation and d. functional theory calculation, further demonstrating that unsaturated alcs. can be formed through the selective hydrogenation of unsaturated aldehydes by reasonably designing the channel environment of MNPs/MOFs that regulated the steric and electronic effects simultaneously. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8HPLC of Formula: 106-21-8).
3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.HPLC of Formula: 106-21-8
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts