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SUMMARY:MechE Colloquium: Mesostructured Semiconductor Oxides for Solar En
 ergy Conversion
DTSTART:20190305T121500
DTEND:20190305T131500
DTSTAMP:20260407T002517Z
UID:4155478c8a6109a3d30ac8bc49bc8d8f066f2c01f9097f8419271744
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Roland Marschall\, Physical Chemistry III\, University o
 f Bayreuth\, Germany\nAbstract:\nPhotocatalytic and photoelectrochemical p
 rocesses with stable oxide materials still lack the efficiency to justify 
 industrial application\, mainly due to insufficient light absorption\, sho
 rt charge carrier lifetimes\, or dominant recombination. The presentation 
 will present strategies including mesostructuring of complex semiconductor
  mixed oxide materials on the nanoscale to improve photocatalytic and phot
 oelectrochemical activity for H2 generation and water splitting. Mesoporou
 s and fibroid photocatalysts exhibit shortened charge carrier diffusion le
 ngths and enhanced surface area for improved photocatalytic performance\, 
 while the design of composite photocatalysts improves charge carrier separ
 ation for enhanced activity. Spinel ferrite nanostructures combine broad l
 ight absorption and earth-abundant materials design.\n \nSome Recent Refe
 rences\nAdv. Funct. Mater. 24 (2014) 2421\; Small 11 (2015) 2051\; Adv. En
 ergy Mater. 6 (2016) 1600208 (1-9)\; Nano Energy 31 (2017) 551\; J. Phys. 
 Chem. C 121 (2017) 27126\; J. Mater. Chem. A 6 (2018) 1971\; Nanoscale 10 
 (2018) 3225\; Nanoscale 10 (2018) 9691\; ACS Appl. Energy Mater. 1 (2018) 
 2520\; Chem. Phys. Chem. 19 (2018) 2313\; Chem. Photo. Chem 2 (2018) 1022\
 ; ACS Appl. Energy Mater. 1 (2018) 5787\n \n \nBio:\nRoland Marschall ob
 tained his PhD in Physical Chemistry from the Leibniz University Hannover 
 in 2008\, working on mesoporous materials for fuel cell applications. Afte
 r a one year postdoctoral research at the University of Queensland in the 
 ARC Centre of Excellence for Functional Nanomaterials\, he joined in 2010 
 the Fraunhofer Institute for Silicate Research ISC as project leader. In 2
 011\, he joined the Industrial Chemistry Laboratory at Ruhr-University Boc
 hum as young researcher. In 07/2013\, he became Emmy-Noether Young Investi
 gator at the Justus-Liebig-University Giessen. Since 08/2018\, he is full 
 professor at the University of Bayreuth. His current research interests ar
 e heterogeneous photocatalysis\, especially photocatalytic water splitting
  using semiconductor mixed oxides\, and synthesis of oxidic mesostructured
  materials for renewable energy applications.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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