A Cobalt-based Catalyst for CO2 Hydrogenation Under Ambient Conditions

Journal Article · Wed Aug 07 04:00:00 EDT 2013 · Journal of the American Chemical Society, 135(31):11533-11536

DOI:https://doi.org/10.1021/ja406601v· OSTI ID:1132704

Jeletic, Matthew S.; Mock, Michael T.; Appel, Aaron M.; Linehan, John C.

Due to the continually rising levels of CO2 in the atmosphere, research into conversion of CO2 into fuels using carbon-neutral energy is currently an important topic in catalysis. Recent research on molecular catalysts has led to improved rates of CO2 conversion to formate, but unfortunately the resulting catalysts are based on precious metals such as iridium, ruthenium and rhodium and require high temperatures and high pressures for catalytic reactivity. Using established thermodynamic properties, a cobalt-based catalyst system has been designed for the catalytic production of formate from CO2 and H2, even at room temperature and one atmosphere of pressure. Using Co(dmpe)2H (dmpe is bis(dimethylphosphino)ethane) as a catalyst in tetrahydrofuran, room temperature turnover frequencies of 3,400 h-1 at 1 atm of 1:1 CO2:H2 and 74,000 h-1 at 20 atm were obtained. These results highlight the value of basic thermodynamic properties in the rational design of catalysts. This work was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. Pacific Northwest National Laboratory (PNNL) is a multiprogram national laboratory operated for DOE by Battelle.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1132704
• Report Number(s): PNNL-SA-94778; KC0302010
• Journal Information: Journal of the American Chemical Society, 135(31):11533-11536, Journal Name: Journal of the American Chemical Society, 135(31):11533-11536
• Country of Publication: United States
• Language: English

Related Subjects

CO2
abundant metals
catalysis