Quantitative structural analysis using STEM HAADF-iDPC

This webinar will give an introduction to the relevance of materials in catalysis, the challenges in their synthesis and their characterisation at atomic level.

The speakers will present a protocol to determine the location of different types of metallic species within the zeolite framework and the quantification of the metal-metal (Pt-Sn) interactions. We'll then explore experimental issues, AI analysis of the experimental images using AI techniques based on clustering, and the use of special holders – along with image simulations to help you gain a better understanding.

By watching this webinar you will learn:

  • Advanced catalyst characterisation methods using TEM
  • Why STEM iDPC greatly benefits the imaging of beam sensitive porous catalyst materials
  • The challenges and solutions in zeolite based catalysts synthesis and characterisation
Professor José Juan Calvino Gamez

Professor José Juan Calvino Gamez
Professor of Inorganic Chemistry - University of Cádiz

Professor José Juan Calvino Gamez is a Professor of Inorganic Chemistry at the University of Cádiz. Former President of the Spanish Society of Microscopy (period 2009-2013). Since 2004 he has been leading the Electron Microscopy Facilities at the University of Cádiz (DME UCA,  http://sccyt.uca.es), Spain.

His research career, at the frontiers of Heterogeneous Catalysis and Electron Microscopy, has focused on the development of Advanced Electron Microscopy methodologies for the atomic scale analysis of nanomaterials. He has applied these methodologies to the study of a wide spectrum of lanthanide containing systems of interest in Environmental Catalysis. Exploiting the possibilities of electron microscopes to understand in detail the chemical aspects of the synthesis, function and deactivation of catalysts is the topic underlying most of his scientific production.

His current research work focuses on the development of nanostructured, very low ceria content catalysts, for applications in Environmental Catalysis. As Scientific Coordinator, pushing the capabilities of the DME-UCA node within the quite recently renewed Spanish Unique Infrastructure on Electron Microscopy of Materials, ELECMI ( https://elecmi.es), is also an important part of his current work. 

Assistant Professor Miguel Lopez-Haro

Assistant Professor Miguel Lopez-Haro
Assistant Professor of Inorganic Chemistry - University of Cádiz

Miguel Lopez-Haro started his research career at Structure and Chemistry of Nanomaterials Group at Cadiz University in 2006. He obtained a European Mention PhD in Chemistry in 2010. His PhD work, was focused on the investigation at atomic scale of nanostructured materials with Environmental Catalytic applications by advanced electron microscopy techniques.

From December 2010 to June 2013, he was working as Post-doc researcher at CEA-Grenoble (France). During this period, his research work was focused on new materials with promising applications in solar cells and Polymer Electrolyte Membrane (PEM) fuel cells devices using aberration corrected electron microscopy. In September 2013 to December 2014, he was working as Post-doc research scientist at FEI Company. He was involved in a project to develop and implementing new methodologies for a precise quantitative assessment of elemental composition at nanometre scale using new energy dispersive X-ray (EDX) technology.

In January 2015, the applicant retuned as Post-Doc fellow to lead the tomography-related work developed by the group of Prof. Jose Juan Calvino (UCA) in the frame of the European funded project, ESTEEM2. On mid-2015, the applicant was awarded with a “Juan de la Cierva Incorporación” fellowship, starting his position in April 2016 until February 2018. Since March 2018, Miguel Lopez-Haro is Assistant Professor of Inorganic Chemistry at the University of Cádiz.

On the basis of the experience acquired, he is now responsible of a new research line focused on “Quantitative 2D and 3D Methodologies for the Structural and Compositional Analysis, at Atomic and Nano scales, of Functional Materials”. 

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