Computational studies of environmentally-related topics
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Combustion processes are a major contributor of pollutants in the atmosphere; they emit particles of soot, and greenhouse gases like carbon dioxide and nitrogen oxides. Reducing the environmental impact of combustion is central to protecting the environment and mitigating unwanted climate change. Many solutions have been proposed, including increasing the efficiency of combustion to reduce soot formation or lowering the combustion temperature to avoid forming nitrogen oxides. Additionally, the conversion or sequestration of CO2 has been suggested. In each case, fundamental research is required to identify suitable conditions and materials. Herein, we present research that contributes to the understanding of elementary combustion processes and the conversion of CO2. In the first part, mechanisms of rhenium-mediated CO2 conversion to CO are reported. The second part presents data for two key combustion intermediates: the reaction energies for vinyl radical + molecular hydrogen and the infrared signature of methyl peroxy radical.