Issue 22, 2022 - There are new pathways for CO2 catalytic conversion

Recently, the structural regulation and catalytic performance project of polymetallic oxide/low eutectic solvent completed by the team of Professor Lv Hongying of Yantai University creatively constructed a catalytic system of polymetallic oxide/low eutectic solvent, and systematically studied
its structural regulation and catalytic properties.
The relevant research results won the second prize of natural science of the 2021 Shandong Science and Technology Award
.

Due to the characteristics of low melting point, low vapor pressure, biocompatibility, cheap and easy availability, low eutectic solvent has shown good application prospects
in the fields of separation process, functional material synthesis, electrochemistry and chemical reaction.
At present, the research and application of low eutectic solvents are increasing, but their use in the oxidative desulfurization and chemical conversion of carbon dioxide in diesel fuel has rarely been reported
.
Using oxygen as oxidant to catalyze the deep desulfurization of diesel fuel and build a suitable catalytic system for the chemical conversion of carbon dioxide is an important issue
that needs to be solved urgently worldwide.

The project team has systematically studied the structural regulation and catalytic properties of polymetallic oxides/low eutectic solvents, and achieved a series of original results
.
It is found that the Anderson type polymetallic oxide has extremely high oxidative desulfurization efficiency, and realizes oxygen oxidative desulfurization
under the gentle reaction conditions without sacrificing agents.
The research team also constructed an acidic low eutectic oxidative desulfurization system, which introduced the acid low eutectic solvent as a catalyst and reaction medium into the oxidative desulfurization reaction of diesel, breaking through the technical bottleneck of large-scale industrial application of traditional organic solvents and ionic liquids, and opening up new ideas
for the development of environmentally friendly oxidative desulfurization process.

In addition, the project team used low-eutectic solvents as green media and catalysts for the study of
carbon dioxide cycloaddition reactions.
The results show that under the conditions of metal-free, solvent-free and auxiliary-free, the carbon dioxide conversion rate is 100% and the selectivity can reach 99%, which provides a new idea
for the catalytic conversion of carbon dioxide.