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SUMMARY:Ultrathin Separation Membranes for Nanoscale Artificial Photosynth
 etic Units and Nano-Biohybrids
DTSTART:20180118T103000
DTEND:20180118T113000
DTSTAMP:20260506T044858Z
UID:7caca08532b8c1df56b6f477481d57f5cbdf309edb2fc7bc4558fe95
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Heinz FREI\nChemist Senior Scientist\, Lawrence Berkeley N
 ational Laboratory\nAbstract :\nClosing of the photosynthetic cycle of wat
 er oxidation and carbon dioxide reduction on the shortest possible length 
 scale – the nanoscale – offers the advantage of minimizing efficiency 
 degrading ion transport processes and of chemical side reactions. Inorgani
 c oxide-based core-shell nanotubes featuring ultrathin silica separation m
 embranes with embedded molecular wires for tight control of electron trans
 port are introduced\, and charge and proton transport processes evaluated 
 by ultrafast optical spectroscopy and photoelectrochemistry. Such silica m
 embranes enable electronic coupling of other types of incompatible catalyt
 ic environments on the nanoscale as will be shown for integration of inorg
 anic with microbial catalysts.   \n\nBio :\nHeinz Frei received his PhD
  in Physical Chemistry at ETH Zurich. After a postdoctoral stay at the Uni
 versity of California at Berkeley\, he started a research group in solar p
 hotochemistry at LBNL. Over the past two decades\, Frei has established ne
 w methods for utilizing visible and near infrared light for the environmen
 tally friendly synthesis of useful chemicals\, the chemical storage of sol
 ar photons\, and has developed time-resolved FT-IR infrared spectroscopic 
 methods for unraveling mechanisms of heterogeneous catalysis under reactio
 n conditions. Currently\, his research effort focuses on the scientific ch
 allenges of the direct conversion of carbon dioxide and water to a liquid 
 fuel by artificial photosynthesis. He served as Deputy Director of LBNL’
 s Physical Biosciences Division\, the Helios Solar Energy Research Center\
 , and was one of the founding scientists of JCAP. He was elected Fellow of
  the AAAS in 2014.
LOCATION:I17 4 K2 https://plan.epfl.ch/?room==I17%204%20K2
STATUS:CONFIRMED
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