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6:54 PM  February 26, 2021

TPU scientists propose to use carbon dioxide for useful chemistry

© сайт Томского политехнического университетаTPU scientists propose to use carbon dioxide for useful chemistry

TOMSK, Feb 26 – RIA Tomsk. Scientists of Tomsk Polytechnic University (TPU) with colleagues from Czech universities proposed a new way of utilizing carbon dioxide (CO2) from the atmosphere using plasmon energy; their method involves the production of organic compounds from CO2, which are used in various fields, including the creation of drugs, the TPU website reported.

The increase in carbon dioxide levels in the atmosphere is a global environmental problem. Usually, the solution focuses on measures to reduce CO2 emissions. An alternative option is to use carbon dioxide, which is already in the atmosphere, for beneficial chemical transformations, the polytechnics explain.

"Researchers have found a way to use atmospheric carbon dioxide to produce cyclic carbonates. These are organic compounds that are used as electrolytes for lithium-ion batteries, green solvents, and in the creation of drugs", – the report said.

The press service explains that scientists have succeeded in synthesizing carbonates under the influence of light and at room temperature, while traditional methods involve synthesis at high pressure and temperature. In the experiments, the scientists used gold nanoparticles with grafted organic molecules of a nitrogenous base and obtained cyclic carbonates by the interaction of carbon dioxide and the initial substances – epoxides.

"Gold nanoparticles have a plasmon effect. <...> The issue of the mechanisms of plasmon chemistry itself is a hot scientific topic. A number of our previous articles are devoted to this area of ​​research. Control experiments allowed us to assume that the excitation of a plasmon on particles leads to the transfer of energy to captured CO2 molecule without heating", – TPU scientist Olga Guselnikova is quoted in the message.

© сайт Томского политехнического университета
It is noted that the study and experiments have demonstrated that the reaction can be carried out directly using air without further purification or concentration of CO2 under normal conditions under the influence of light. "And this always ultimately makes the synthesis easier and more environmentally friendly", – is said in the message.

It is specified that the study was carried out by Tomsk polytechnics together with scientists from the Prague University of Chemistry and Technology and Jan Evangelista Purkyně University in Ústí nad Labem (Czech Republic) with the support of the Russian Science Foundation (RSF). The results of the study are published in the Journal of Materials Chemistry A (IF: 11,301; Q1).

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