Publication date: 28th August 2024
Electrocatalytic water splitting is generally regarded as the most environmental-friendly and sustainable pathway for green hydrogen production. However, the energy efficiency of water electrolysis is hampered mostly by the anodic process, where the sluggish oxygen evolution reaction (OER) requires excessively high overpotentials to proceed at relevant current densities. This high overpotentials needed are partly due to complexity of this 4e– process requiring the generation of a O2 molecule with ground triplet state. Because of this, spin polarization upon the catalytic entities has been proposed to improve the efficiency of the process, in order to favor parallel spin alignment in the product.
One successful strategy towards this aim has been realized through the chiral-induced spin selectivity (CISS) effect [1]. Following this strategy, improved OER kinetics are promoted when a catalytic surface is decorated with chiral organic molecules, which has been assigned to the spin-filtering power of the enantiopure molecules as mediators in the charge transfer processes [2]. Another plausible strategy to achieve improved OER kinetics points towards the use of external magnetic fields, which are able to favor spin alignment of open shell radicals to form an open shell O–O bond [3].
In this talk we will present our latest results following these two different approaches to accelerate the OER anodic reaction during water splitting. We will introduce our strategies for the design of the catalysts, as enantiopure or magnetically active sites; their structural, magnetic and electrochemical characterization; up to their implementation into full cell electrolyzers as proof-of-concept for future exploitation of these promising phenomena for enhanced OER electrocatalysis.
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.