Proceedings of MATSUS Fall 2024 Conference (MATSUSFall24)
Publication date: 28th August 2024
Electrochemical conditioning is a widely applied step in the development of stable and active electrocatalyst structures for alkaline oxygen evolution reaction (OER).[1] However, determining the “optimal” conditioning procedure for a specific material is challenging due to the vast number of electrical signals that can be applied, including various potential windows, change rates, and several combinations of reductive and oxidative signals. To address this, we employed a genetic algorithm (GA) for its effectiveness in optimizing multi-criteria problems within non-smooth search spaces, and we combined it with scanning electrochemical cell microscopy (SECCM), a high-throughput technique capable of evaluating thousands of conditioning procedures under similar conditions.[2] Using the capability of these two tools, 20 different starting conditioning procedures were evolved during 10 generations. For each conditioning procedure, the protocol involved the respective electrochemical conditioning and the subsequent OER evaluation to derive activity and stability markers, which were used by the algorithm to generate a new generation of 20 conditioning procedures. This approach aims to identify some common characteristics in the conditioning sequences that significantly “activate” or “deactivate” the nickel-based catalysts for the OER. Understanding the correlation of conditioning techniques, structural evolution of the active sites and their activity may help to identify the key characteristics in the active sites which is useful for the design of electrocatalysts at nanoscale.
C.A. and A.A.A. acknowledge funding by the BMBF in the framework of the PrometH2eus project (03HY105F, 03HY105G). C.A and A.E.P.M. acknowledge funding by Deutsche Forschungs-gemeinschaft (DFG, German Research Foundation; 506711657; SFB 1625) within the collaborative research center 1625 "Atomic-scale understanding and design of multifunctional solid solution surfaces with complex chemical composition”
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.