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Updated: Jun 8, 2026

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
Published on: November 9, 2019
A tungsten-mediated closed cycle of reactivity for the reduction of CO(2) to CO
Upul Jayarathne1, Perumalreddy Chandrasekaran, Heiko Jacobsen
1Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, LA 70118-5698, USA.
Abstract:
The recycling of CO(2) by reduction to CO is an important objective in the context of renewable carbon feedstock chemicals. A tungsten-mediated reduction of CO(2) to CO reported by Mayer and coworkers has been re-examined, and it is shown that a series of four well-defined stoichiometric steps can be executed which form a closed cycle and sum as CO(2) + 2H(+) + 2e(-)→ CO + H(2)O. Energetic parameters of this system are probed by cyclic voltammetry, by calculations of gas-phase reaction enthalpies for each of the four steps, and by calculation of the W[triple bond, length as m-dash]O bond dissociation energy for the tungsten species that results from oxidation addition of CO(2).
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