title: Conversion of CO2 from Air into Methanol Using a Polyamine and a Homogeneous Ruthenium Catalyst.
abstract: A highly efficient homogeneous catalyst system for the production of CH3OH from CO2 using pentaethylenehexamine and Ru-Macho-BH (1) at 125-165 °C in an ethereal solvent has been developed (initial turnover frequency = 70 h(-1) at 145 °C). Ease of separation of CH3OH is demonstrated by simple distillation from the reaction mixture. The robustness of the catalytic system was shown by recycling the catalyst over five runs without significant loss of activity (turnover number > 2000). Various sources of CO2 can be used for this reaction including air, despite its low CO2 concentration (400 ppm). For the first time, we have demonstrated that CO2 captured from air can be directly converted to CH3OH in 79% yield using a homogeneous catalytic system.
authors.affiliation: Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California , University Park, Los Angeles, California 90089-1661, United States.
authors.forename: Jotheeswari
authors.initials: J
authors.lastname: Kothandaraman
authors.affiliation: Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California , University Park, Los Angeles, California 90089-1661, United States.
authors.forename: Alain
authors.initials: A
authors.lastname: Goeppert
authors.affiliation: Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California , University Park, Los Angeles, California 90089-1661, United States.
authors.forename: Miklos
authors.initials: M
authors.lastname: Czaun
authors.affiliation: Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California , University Park, Los Angeles, California 90089-1661, United States.
authors.forename: George A
authors.initials: GA
authors.lastname: Olah
authors.affiliation: Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California , University Park, Los Angeles, California 90089-1661, United States.
authors.forename: G K Surya
authors.initials: GK
authors.lastname: Prakash