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SUMMARY:Nanoparticle-based electrodes for sustainable energy - Dr Scott Wa
 rren\, Northwestern University
DTSTART:20120717T120000Z
DTEND:20120717T130000Z
UID:TALK38993@talks.cam.ac.uk
CONTACT:Tracy Inman
DESCRIPTION:Solar energy has the potential to meet global power needs but 
 current methods to capture and use solar energy are expensive and ineffici
 ent.  The feasibility of large-scale solar energy use will be greatly impr
 oved by devices that economically convert solar energy to chemical energy 
 and by devices that convert chemical energy to electrical energy.  I have 
 begun a systematic exploration into the self-assembly of nanoparticle-base
 d materials that will likely play a central role as electrodes in these de
 vices.  From these studies\, a number of fascinating electrode morphologie
 s have emerged that provide insight into the structure-property relationsh
 ips that guide device design.  In this presentation\, I explore: (1) fuel 
 cell electrodes that are self-assembled using designed interactions betwee
 n nanoparticles and block copolymers\, (2) a new analytical technique that
  provides insight into the highest performing metal oxide photoanodes for 
 solar water splitting\, and (3) a new class of materials termed "nanoparti
 cle electrides" that are derived from ligand-stabilized nanoparticles in w
 hich the emission of unpaired electrons from the nanoparticles dramaticall
 y influences the material’s electronic and magnetic properties.
LOCATION:Kapitza Building Seminar Room\, Cavendish Laboratory\, Department
  of Physics
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