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SUMMARY:Hierarchical Nanoscale Assemblies for the Photocatalytic Reduction
  of CO2 by H2O
DTSTART:20180119T111500
DTEND:20180119T121500
DTSTAMP:20260925T120627Z
UID:293694ff059cf316249a8da473f15f42621c3435803d3f3f53a7ab09
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Heinz FREI\nChemist Senior Scientist\, Lawrence Berkeley N
 ational Laboratory\nAbstract:\nArrays of cobalt oxide-silica core-shell na
 notubes offer a design for scalable artificial photosystems in which the c
 ycle of CO2 reduction by H2O is closed on the nanoscale while products are
  separated across the continuum of length scales from nanometers to centim
 eters and beyond. Synthesis and characterization of such arrays will be pr
 esented including methods for spatially controlled functionalization of th
 e core-shell units by inorganic oxide-based light absorber-nanocatalyst gr
 oups. Emphasis is on the understanding of charge transfer across the vario
 us interfaces\, and of catalytic mechanisms of CO2 reduction at Cu cluster
 s and H2O oxidation at metal oxide particles by time-resolved optical and 
 transient ATR FT-IR spectroscopy.\n \n \nBio:\nHeinz Frei received his P
 hD in Physical Chemistry at ETH Zuerich. After a postdoctoral stay at the 
 University of California at Berkeley\, he started a research group in sola
 r photochemistry at LBNL. Over the past two decades\, Frei has established
  new methods for utilizing visible and near infrared light for the environ
 mentally friendly synthesis of useful chemicals\, the chemical storage of 
 solar photons\, and has developed time-resolved FT-IR infrared spectroscop
 ic methods for unraveling mechanisms of heterogeneous catalysis under reac
 tion conditions. Currently\, his research effort focuses on the scientific
  challenges of the direct conversion of carbon dioxide and water to a liqu
 id fuel by artificial photosynthesis. He served as Deputy Director of LBNL
 ’s Physical Biosciences Division\, the Helios Solar Energy Research Cent
 er\, and was one of the founding scientists of JCAP. He was elected Fellow
  of the AAAS in 2014.\n 
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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