Jessop, Philip G., Yong Huang, John C. Linehan, A. Denise Main, Justine M. Pitts, Joe Tai, Colin A. Thomas. RECENT DEVELOPMENTS IN THE HYDROGENATION OF CO2 CATALYZED BY RUTHENIUM PHOSPHINE COMPLEXES
Department of Chemistry, University of California, Davis, CA 95616-5295 (jessop@chem.ucdavis.edu)
Chemical Sciences Department, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352
Kinetic studies of CO2 hydrogenation were performed at subcritical CO2 pressures in order to avoid complications from phase behaviour that were observed in earlier studies under supercritical conditions. The rate dependence on the choice of phosphine, the pressure of H2 and CO2, and the concentration or choice of additive (such as methanol) was measured. Addition of an inert gas affects the rate of the reaction, probably via gas-expansion of the liquid phase. Spectroscopic studies of the catalyst will also be described.