Copper Clusters Encapsulated in Carbonaceous Mesoporous Silica Nanospheres for the Valorization of Biomass-Derived Molecules was written by Lan, Fujun;Zhang, Huiling;Zhao, Chaoyue;Shu, Yu;Guan, Qingxin;Li, Wei. And the article was included in ACS Catalysis in 2022.Electric Literature of C8H10O2 This article mentions the following:
Cu-based catalysts possess prominent properties in the selective hydrogenation of carbon-oxygen bonds but suffer from low stability due to high-temperature sintering. Dandelion-like nanosized mesoporous silica spheres (NMSSs) with short mesochannels can afford a nanoconfined space restraining the metal from aggregating. Herein, we report an air-assisted low-temperature carbonization of the surfactant template strategy for fabricating N-doped carbon-coated NMSSs (NC@NMSSs) encapsulated ultra-dispersed Cu cluster catalysts (Cu/NC@NMSSs). The as-obtained catalysts have demonstrated excellent performances in the hydrogenation of biomass-derived levulinic acid (LA) into γ-valerolactone (GVL), achieving a GVL yield as high as 96% and commendable stability in 100 h. The functional N species and C=O groups on the NC coating layer play a critical role in stabilizing and dispersing Cu clusters. Theor. calculations reveal that the pyrrolic and pyridinic N sites can enrich LA reactants. Accordingly, the apparent activation energy (Ea) is reduced by half and the turnover frequency doubled compared to Cu/NMSS catalysts. Addnl., the catalysts displayed high hydrogenation activities for a variety of aldehydes, ketones, and nitroarenes. This work offers a convenient strategy for constructing promising Cu-based catalysts in upgrading biomass-derived compounds In the experiment, the researchers used many compounds, for example, (4-Methoxyphenyl)methanol (cas: 105-13-5Electric Literature of C8H10O2).
(4-Methoxyphenyl)methanol (cas: 105-13-5) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. But on the other hand, ethers undergo cleavage by reaction with acids. Ethyl ether is an excellent solvent for extractions and for a wide variety of chemical reactions. It is also used as a volatile starting fluid for diesel engines and gasoline engines in cold weather. Dimethyl ether is used as a spray propellant and refrigerant. Methyl t-butyl ether (MTBE) is a gasoline additive that boosts the octane number and reduces the amount of nitrogen-oxide pollutants in the exhaust. The ethers of ethylene glycol are used as solvents and plasticizers.Electric Literature of C8H10O2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem