Nanostructuration as key to design Conjugated Porous Polymers for energy applications
Marta Liras a, Alejandro García a, Sandra Palenzuela Rebella a, Tania Mazuelo a, Teresa Naranjo a, Mariam Barawi a, Victor A. de la Peña O´Shea a
a Photoactivated Processes Unit, IMDEA Energy
Proceedings of Catalyst Design Strategies for Photo- and Electrochemical Fuel Synthesis (ECAT23)
Keele, United Kingdom, 2023 December 4th - 5th
Organizers: Charles Creissen, Qian Wang and Julien Warnan
Oral, Marta Liras, presentation 024
Publication date: 10th October 2023

Solar energy conversion plays a very important role in the transition to ore suitable energy system. In this sense, so many materials have been proposed to drive artificial photosynthesis, most of them based on inorganic semiconductors, and the achievements performance continue every day. However most of these materials presents well known short comings such as low light absorption, fast charge recombination, and lack of tunability which limiting their efficiency.[1] The use of conjugated Porous Polymers (CPPs) and their hybrid thereof open the door to multitude of possibilities when it comes to select and design of suitable photocatalyst. [2] Thus our group has been pioneering in the use of hybrid based on inorganic semiconductor and CPPs for hydrogen production and CO2 photoreduction processes[3]. However, when we tried to translate the acquired knowledge to photoelectrocatalysis devices we found difficulties related with the processability of this kind of hybrid materials. In order to design photoelectrocatalysts the main premise is to develop thin film photoelectrodes. But the CPPs synthesized by bulk techniques are big particles (from micrometres to millimetres) which the processing as thin films with enough optical and electrical quality is not possible. In this talk we will show our advance in the implementation of 1) high throughput microfluidic techniques through miniemulsion process; 2) electropolymerization; as well as 3) interfacial synthesis to the synthesis of nanostructured CPPs and how this is a key aspect to improve their performance in the energy field.

[1] Mariam Barawi, Laura Collado, Miguel Gomez-Mendoza, Freddy E. Oropeza, Marta Liras, Victor A. de la Peña O’Shea Adv. Energy Mater, 2021, 2101530

[2] M.Liras, M. Barawi, V. A. de la Peña O´Shea, Chem. Soc. Rev. 2019, 48, 5454-5487.

[3] L. Collado, T. Naranjo, M. Gomez-Mendoza, C. G. López-Calixto, F. E. Oropeza, M. Liras, J. Marugán, V. A. de la Peña O’Shea, Adv. Funct. Mater. 2021, 2105384.

This work received funding from the European Union’s Horizon 2020 research and innovation program under European Research Council (ERC) through NanoCPP project (899773). Financial support was received from AEI-MICINN/FEDER, UE through the Nympha Project (PID2019-106315RB-I00).

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