Publication date: 28th August 2024
Determination of active sites in electrocatalysis is a crucial aspect of understanding and enhancing the performance of electrocatalysts1,2. Active sites are the specific locations on the catalyst's surface where electrochemical reactions occur, playing a key role in determining the catalyst's efficiency and selectivity. Identifying these sites requires typically a combination of experimental techniques. Common methods include spectroscopic techniques such as X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy (IR), which provide information on the chemical environment and electronic states of the surface atoms. Additionally, advanced microscopy techniques like scanning tunneling microscopy (STM) and transmission electron microscopy (TEM) can visualize the surface structure at the atomic level. Understanding the nature and behavior of active sites allows for the rational design and optimization of electrocatalysts, leading to improved performance in various applications.
In this talk, I show some examples of our research on using in situ X-ray absorption near-edge structure (XANES), synchrotron X-ray diffraction (XRD), and quasi-in-situ X-ray photon spectroscopy (XPS) to understand the nature of the catalytic site two reactions of interest: CO2 electroreduction, and oxygen evolution reaction (OER).
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.