DBPapers

THE PHOTOCATALYTIC REDUCTION OF CO2 WITH H2O

AUTHOR/S: B. KHEZRY, N. MODIRSHAHLA, S. KHANAHMADZADEH, H. HOOSHYAR
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 2, 293-300 pp

ABSTRACT

The goals of the present work are: (1) A theoretical analysis of possible reaction
pathways to the synthesis of methanol and methane from CO2 and H2O and the selection
of the best path from the view point of energy. (2) Investigation of the kinetic of
assumed reactions.

For determination of mechanism, BOC-MP method is used. By using of this theory, it is
possible to calculate the thermodynamic and kinetic parameters and therefore predict
the intermediates and the mechanism of heterogeneous catalytic reaction. With attention
to these results, in photocatalytic reduction of CO2, with decrease in the d-character of
the supported metal on TiO2, production of methanol will increase. Upon the
investigation of kinetics of the proposed mechanism, we deduced that when the Fermi
level of the catalyst is raised, the rate of methanol formation will increase.

Keywords: Reduction of CO2, Photocatalyst, Fermi level, TiO2, methanol synthesis