Hydrogenation of Benzene Using Aqueous Solution of Polyoxometalates Reduced by CO over Gold Catalysts

• Published in: Journal of the American Chemical Society Vol. 127; no. 31; pp. 10790 - 10791
• Main Authors: Rodriguez-Rivera, Gabriel J, Kim, Won Bae, Evans, Steven T, Voitl, Tobias, Dumesic, James A
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 10.08.2005
• Subjects: Chemistry; Electrochemistry; Exact sciences and technology; General and physical chemistry; Kinetics and mechanism of reactions; Mixed catalyst; Hydrogen transfer; Catalytic reaction; Hydrocarbon; Electrocatalysts; Experimental study; Hydrogenation; Cyclic voltammetry; Heteropolyacid; Benzene; Reaction mechanism; Carbon monoxide; Kinetic parameter; Aqueous solution; Rate constant; Electrochemical reaction
• ISSN: 0002-7863; 1520-5126
• DOI: 10.1021/ja052453f

Aqueous polyoxometalate (H3PMo12O40) solution reduced by CO with liquid water using gold nanoparticle catalysts at room temperature, which contains protons in liquid water and electrons associated with the reduced polyoxometalate, can produce gaseous H2 or can hydrogenate benzene over an electrochemical cell consisting of a simple carbon anode, a proton-exchange membrane, and a Pt- or Rh-based cathode. In the present cell, H2 can be produced from the reduced H3PMo12O40 solution at voltages that are lower by about 1.15 V compared to water electrolysis.