Proceedings of MATSUS Fall 2023 Conference (MATSUSFall23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.102
Publication date: 18th July 2023
Water electrolysers (WE) with proton-conducting electrolytes, especially those based on the polymer electrolyte membranes (PEM), present many important technological advantages over the traditional alkaline-based electrolyte systems. On a negative side, efficient and practically robust operation of the PEMWEs is challenging to achieve without the use of the oxygen evolution reaction (OER) catalysts based iridium, typically introduced to the anodes at mg cm-2 levels of loading. The key limitation here is not just the very high cost of Ir, but also the availability of this very scarce metal that is mined on a scale of only few tonnes per annum.
Aiming to resolve this challenge, our work has focused on the development of iridium-free OER catalysts capable of robust operation at low pH and elevated temperatures on an extended timescale. Towards this aim, we have implemented a “catalyst-in-matrix” design concept, which is based on combining the catalytically active oxide species, e.g. cobalt or manganese, with an electrically conductive matrix that is thermodynamically stable under the target operating conditions, e.g. oxides of lead and antimony. The talk will present several examples of such systems based on various “catalyst” and “matrix” elements, with a specific focus on the durability of the materials in operation. Integration of some of the most promising catalyst, including those operating in a self-healing mode, into the anodes of the devices for the low-pH water electrolysis will be highlighted.
The financial support from the Australian Research Council (project FT200100317), Australian Renewable Energy Agency (project 2018/RND008) is gratefully acknowledged. Parts of the work were undertaken at the XAS beamline of the Australian Synchrotron, LiXEdrom beamline of the BESSY II synchrotron facility, Monash Centre for Electron Microscopy and Monash X-ray platform.
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.