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Cover Picture: Tailoring Copper Oxide Semiconductor Nanorod Arrays for Photoelectrochemical Reduction of Carbon Dioxide to Methanol (ChemPhysChem 10/2013)
Author(s) -
Rajeshwar Krishnan,
de Tacconi Norma R.,
Ghadimkhani Ghazaleh,
Chanmanee Wilaiwan,
Janáky Csaba
Publication year - 2013
Publication title -
chemphyschem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201390046
Subject(s) - nanorod , materials science , oxide , copper , substrate (aquarium) , chemical engineering , crystallite , nanotechnology , semiconductor , methanol , electrochemistry , optoelectronics , chemistry , electrode , metallurgy , organic chemistry , oceanography , geology , engineering
CuO/Cu 2 O hybrid nanorod arrays are prepared on a Cu substrate by K. Rajeshwar, N. R. de Tacconi et al. ( p. 2251 ). The procedure involves the initial thermal growth of CuO nanorods followed by controlled electrodeposition of p‐type Cu 2 O crystallites on their walls. Photoelectrosynthesis of methanol from CO 2 is conducted under simulated solar irradiation at Faradaic efficiencies up to 95%. The hybrid nanoarchitectures, ensuring a double pathway for photoelectron injection to CO 2 , along with the high surface area are key to the excellent performance of these films.