ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
Manuscript Ru catalyst design v2.pdf (919.6 kB)
0/0

Catalyst Design for Highly Efficient Base-Free Carbon Dioxide Hydrogenation to Formic Acid

preprint
submitted on 17.07.2019 and posted on 17.07.2019 by Andreas Weilhard, Kevin Salzmann, Jairton Dupont, Martin Albrecht, Victor Sans
We report on new ruthenium complexes as catalysts for the efficient transformation of CO2 into formic acid as a high-value chemical and fuel. Remarkably, these complexes catalyze the hydrogenation of CO2 selectively and without employing any base, which improves the sustainability of the process when compared the common base-assisted technologies. The molecular catalyst design relies on donor-flexible and synthetically versatile pyridylidene amide (PYA) ligands which allows the ligand architecture to be varied in a controlled manner to gain valuable insights for the improvement of catalyst performance. Modification of the ligand properties directly influence the catalytic process by shifting the turnover limiting step, the reaction mechanism and the stability upon the acidification of the reaction media and provide access to high-performance systems reaching turnover numbers of several thousands and turnover frequencies up to 350 h–1.

Funding

Generalitat Valenciana CIDEGENT/2018/036

ERC CoG 615653

SNSF (200020_182663)

History

Email Address of Submitting Author

sans@uji.es

Institution

University Jaume I

Country

Spain

ORCID For Submitting Author

0000-0001-7045-5244

Declaration of Conflict of Interest

No conflicts of interest

Exports

Logo branding

Exports