Défense de thèse de doctorat en Sciences chimiques - Diogo ESPERANÇA GARCIA

New porous functional materials for photo and electrochemical devices

Jury

• Prof. Catherine MICHAUX (département de chimie, UNamur), Présidente
• Prof. Bao-Lian SU (département de chimie, UNamur), promoteur et secrétaire
• Prof. Stéphanie REYNAUD (Institute of Analitical Sciences and Physical-Chemistry for the Environment and Materials, Université de Pau et des Pays de l’Adour), co-promotrice
• Dr Luca FUSARO (département de chimie, UNamur)
• Prof. Yann GARCIA (Institute of Condensed Matter, UCLouvain)
  
• Prof. Eric CLOUTET (laboratoire de chimie des polymères organiques, Université de Bordeaux)
  
• Prof. Laurent BILLON (IPREM, Université de Pau et des Pays de l’Adour)
  
• Dr Claudia DELGADO SIMAO (centre tecnologic de Catalunya, Eurecat)

 

Abstract

 

The accumulation of carbon dioxide with anthropogenic origin in the atmosphere has resulted in a climate change that threatens humanity and the planet itself. The uncertainty about the existence of unrecoverable resources, such as fossil fuels, brings the need for researchers to develop sustainable technologies based on renewable energy sources towards carbon-neutrality. Artificial photosynthesis presents great opportunities to convert solar energy, H₂O, and CO₂ to “solar fuels” or other stable products with important value for industry. In this context, this thesis was performed under the frame of the eSCALED (European SChool on Artificial Leaf: Electrodes and Devices) project, a contribution to the structure of early-stage research training at the European level and strengthening European innovation capacity to elaborate an artificial leaf device as a response to climate change. Like a leaf in nature, eSCALED proposes to elaborate an artificial photosynthesis device capable of harvesting solar energy and storing it as molecules (solar fuels). The proposed device should combine a solar cell with a bio-inspired electrochemical stack where H₂O oxidation and H⁺/CO₂ reduction are performed in microporous electrodes, mimicking the chloroplasts of a plant. Apart from promoting inter and multi-disciplinary research and formation on biological/biochemical, inorganic, and soft matter, device engineering, and innovation, eSCALED targets the use of easy, cheap, and up-scalable processes based on organic and earth-abundant materials.

The works described in this thesis focus on the synthesis, characterization, and up-scaling of microporous polymer electrodes decorated with heterogeneous H⁺/CO₂ reduction catalysts as a contribution to the eSCALED demonstrator devices. For this purpose, we worked on an innovative cathode architecture in a multi-disciplinary approach, merging the fields of polymers’ chemistry and physical chemistry, hierarchically porous organic and inorganic materials, molecular catalysis, and printed electronics.

 

Link

https://teams.microsoft.com/l/meetup-join/19%3ameeting_MzRhMjgxNTUtZTM1Yi00YTdlLTgzYjgtYWIyYzhkYjc3NTJi%40thread.v2/0?context=%7b%22Tid%22%3a%221d4fdb5e-586f-414c-a0f7-93f631b65591%22%2c%22Oid%22%3a%22822492b4-8fce-4004-99fc-13d591579523%22%7d

Meeting ID: 334 328 043 992
Passcode: M5BB8t

 

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