Greifswald 2024 – wissenschaftliches Programm

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SYEC: Symposium Lasers and Photonic Technologies for Environmental Challenges

SYEC 2: Fiber-Based Plasmonic Microreactor for Flow Chemistry

SYEC 2.3: Hauptvortrag

Dienstag, 27. Februar 2024, 14:30–15:00, ELP 6: HS 4

Fibre-based plasmonic micro reactor CO2 reduction — •Devin O'Neill, Patrick Spath, and Wiebke Albrecht — AMOLF, Amsterdam, The Netherlands

As part of a bid to achieve carbon neutrality or even atmospheric remediation of CO2 levels new, sustainable, and efficient technologies are needed. The EU "reaCtor" project aims to combine the chemical selectivity of a flow microreactor with plasmon-induced photocatalysis in a highly efficient light guiding system - a hollow core optical fibre with annular light propagation; capitalizing on short lived (0.1-1 ps)[1] hot-electrons generated with plasmon relaxation to drive CO2 reduction to useful products[2]. We strive to unify disparate literature in a highly photon-efficient photocatalytic system. Here, we show work on surface enhanced Raman scattering from a single nanoparticle for CO2 reduction where the hot electron is extracted by imidazolium[2] binding CO2 and driving the chemical reaction[3] with the restrictions of the optofluidic environment.

[1] Nature Nanotech (2015), 25-34, 10(1), [2] Nature Comm (2019), 1-7, 10(1), [3] J. Phys Chem. C (2021), 17734-17741, 125(32)

This project has received funding from the EIC program under grant agreement No 101099405.

Keywords: Plasmon; Photocatalysis; Spectroscopy; Nanoparticle; Raman