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SUMMARY:2D or not 2D?  Bridging energy conversion and storage in two-dimen
 sional molecular frameworks
DTSTART:20201203T171500
DTEND:20201203T190000
DTSTAMP:20260510T025800Z
UID:a27f983799610f77068d710833073d6e6b0ef8697222e319b5aa379a
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Bettina Lotsch Max Plank Institute for Solid State Resea
 rch Stuttgart\, Germany\n2D or not 2D? \nBridging energy conversion and st
 orage in two-dimensional molecular frameworks\n\nB. V. Lotsch\, Max-Planck
 -Institut für Festkörperforschung\, Stuttgart &\nDepartment Chemie\, LMU
  München\n\nTransitioning towards a sustainable energy economy is conting
 ent on new materials solutions. Due to their earth-abundance and low cost\
 , carbon-based materials have become the backbone of a variety of sustaina
 ble energy technologies ranging from photovoltaics to supercapacitors. Whi
 le many carbon materials lack structural definition\, 2D frameworks such a
 s carbon nitrides and covalent organic frameworks (COFs) are molecularly p
 recise\, crystalline and porous\, and as such have the potential to put a 
 new spin on the development of well-defined and robust metal-free semicond
 uctors for photocatalysis.\nIn this talk\, we will discuss recent developm
 ents and challenges lying ahead in the emerging field of “soft photocata
 lysis” using 2D frameworks as photoabsorbers\, with a focus on the hydro
 gen evolution reaction. We will then explore the rich interface between op
 toelectronic and optoionic properties in ionic poly(heptazine imide)-type 
 carbon nitrides (PHI)\, which represent a new generation of “light stori
 ng” materials. The intricate interplay between light harvesting and char
 ge storage in PHI will be exemplified by the concepts of “dark photocata
 lysis” and direct solar batteries. Finally\, we will showcase the design
  of light-driven microswimmers with photocapacitive properties\, building 
 a bridge between energy converting and autonomous systems.  
LOCATION:Zoom https://epfl.zoom.us/j/98057582302
STATUS:CONFIRMED
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