Proceedings of nanoGe Spring Meeting 2022 (NSM22)
DOI: https://doi.org/10.29363/nanoge.nsm.2022.343
Publication date: 7th February 2022
In this work, we present a mechanistic study of the electrochemical CO2 reduction catalyzed by a highly active fac‐[MnI(CO)3(bis‐MeNHC)MeCN]+ complex (Mn-MeCN+).[1] By combining in-situ IR-SEC, chemical synthesis of intermediates and DFT calculations, we have identified and fully characterized Mn-CO+ (under CO2) and Mn-H (under Ar) as key intermediates in the CO2 reduction mechanism. Our observations confirm that, in the presence of low water concentrations, the CO2 reduction to CO occurs through a protonation-first pathway. However, at higher concentrations of water, Mn-H is formed and easily inserts CO2 to give the corresponding Mn-O2CH intermediate. The formate release from the latter intermediate is a slow process which explains the decrease of the catalytic activity in the presence of high concentrations of added acid.
The authors acknowledge the financial support of the ICIQ Foundation, the CERCA Program/Generalitat de Catalunya, MICINN through Severo Ochoa Excellence Accreditation 2020-2023 (CEX2019-000925-S, MIC/AEI), the ERC for H2020 project ERC-2015-CoG GREENLIGHT_REDCAT 648304, (J.L.-F.), the Spanish Ministry of Universities for an FPU fellowship (FPU16/04234, S.F.), AGAUR (2017-SGR-1647, J.L.-F.; 2017-SGR-39, J.M.L.) and MICINN (PID2019-110050RB-I00, J.L-F.; PGC2018-098212-B-C22, J.M.L).
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.