Document Detail


Efficient solar photoelectrosynthesis of methanol from carbon dioxide using hybrid CuO-Cu(2)O semiconductor nanorod arrays.
MedLine Citation:
PMID:  23296091     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Solar photoelectrosynthesis of methanol was driven on hybrid CuO-Cu(2)O semiconductor nanorod arrays for the first time at potentials ∼800 mV below the thermodynamic threshold value and at Faradaic efficiencies up to ∼95%. The CuO-Cu(2)O nanorod arrays were prepared on Cu substrates by a two-step approach consisting of the initial thermal growth of CuO nanorods followed by controlled electrodeposition of p-type Cu(2)O crystallites on their walls. No homogeneous co-catalysts (such as pyridine, imidazole or metal cyclam complexes) were used contrasting with earlier studies on this topic using p-type semiconductor photocathodes. The roles of the core-shell nanorod electrode geometry and the copper oxide composition were established by varying the time of electrodeposition of the Cu(2)O phase on the CuO nanorod core surface.
Authors:
Ghazaleh Ghadimkhani; Norma R de Tacconi; Wilaiwan Chanmanee; Csaba Janaky; Krishnan Rajeshwar
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-8
Journal Detail:
Title:  Chemical communications (Cambridge, England)     Volume:  -     ISSN:  1364-548X     ISO Abbreviation:  Chem. Commun. (Camb.)     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610838     Medline TA:  Chem Commun (Camb)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019-0065, USA. rajeshwar@uta.edu, ntacconi@uta.edu.
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