Open AccessPhotomethanation of Gaseous CO 2 over Ru/Silicon Nanowire Catalysts with Visible and Near‐Infrared Photons
Author(s) -
O'Brien Paul G.,
Sandhel Amit,
Wood Thomas E.,
Ali Feysal M.,
Hoch Laura B.,
Perovic Doug D.,
Mims Charles A.,
Ozin Geoffrey A.
Publication year - 2014
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201400001
Subject(s) - catalysis , infrared , silicon , ruthenium , materials science , photon , nanowire , photochemistry , nanotechnology , chemistry , optoelectronics , optics , physics , organic chemistry
Gaseous CO 2 is transformed photochemically and thermochemically in the presence of H 2 to CH 4 at millimole per hour per gram of catalyst conversion rates, using visible and near‐infrared photons. The catalyst used to drive this reaction comprises black silicon nanowire supported ruthenium. These results represent a step towards engineering broadband solar fuels tandem photothermal reactors that enable a three‐step process involving i) CO 2 capture, ii) gaseous water splitting into H 2 , and iii) reduction of gaseous CO2 by H 2 .