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SUMMARY:From molecules to materials: new catalysts for artificial photosyn
 thesis - Dr Souvik Roy (Chemistry Department\, Cambridge)
DTSTART:20190502T121000Z
DTEND:20190502T130000Z
UID:TALK122677@talks.cam.ac.uk
CONTACT:Domi Baretic
DESCRIPTION:Molecular hydrogen is the ultimate clean fuel due to its extre
 mely high energy density and its clean combustion to water. However\, the 
 challenge lies to produce it sustainably from water\, which requires catal
 ysts to lower the kinetic energy barrier. Molecular catalysts\nbased on no
 n-precious metals fascinates synthetic chemists the most due to their tuna
 bility which allows us to tailor the structure and control their propertie
 s. However\, molecular catalysts are somewhat disadvantaged by practical c
 onsideration because they often function in homogeneous solution and displ
 ay limited\nlong-term stability. Having an effective scaffold to mount the
  catalyst on\, representing 'heterogenisation' of the molecule\, is a key 
 part of building a practical system that brings together the benefits\nof 
 homogeneous and heterogeneous catalysis. \nMetal-organic framework\, a typ
 e of crystalline material composed of metal clusters connected by organic 
 linkers\, offers a step further by allowing us to build tunable three-dime
 nsional architecture by using molecules as the building blocks. In this ta
 lk\, I will explore how the\nmetal-organic framework enables us to transfe
 r the chemistry of molecular catalysts into a solid material while still e
 njoying the benefits of heterogenous catalysis.
LOCATION:The Richard King Room\, Darwin College
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