Proceedings of September Meeting 2016 (NFM16)
Publication date: 14th June 2016
Poor oxygen evolution reaction (OER) catalysis limits the efficiency of H2 production from water electrolysis and photo-electrolysis—clean routes to large-scale energy storage. Despite nearly a century of research, the factors governing the activity of OER catalysts are not well understood. I will discuss our recent advances in understanding the OER in alkaline media for earth-abundant, first-row, transition-metal oxides and (oxy)hydroxides. We find that the most-relevant structures for study are thermodynamically stable (oxy)hydroxides and not crystalline oxides. We show how thin-film electrochemical microbalance techniques allow for accurate quantification of intrinsic activity and how in situ conductivity measurements illustrates how materials are limited by electronic transport. We highlight the dramatic effect that Fe cations—added either intentionally or unintentionally from ubiquitous electrolyte impurities—have on the activity of most OER catalysts. In the absence of Fe we find activity trends across the first-row transition metals that are opposite of the established ones. We propose a new view of OER on mixed-metal (oxy)hydroxides where Ni or Co host-structures support Fe active sites. By rationally combining cations we tune intrinsic activity and electrical conductivity. The work thus illustrates design principles for electrocatalysts that may speed advanced hydrogen production applications.
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.