El próximo día 8 de junio a las 12h, el Prof. Javier García Martínez , del Laboratorio de Nanotecnología Molecular del Departamento de Química Inorgánica de la Universidad de Alicante impartirá en la Sala de Conferencias del IU/Cinquima una conferencia titulada “Superior Catalysts at the Order-Discorder Boundary”.
Entrada libre hasta completar el aforo.
Contenido de la conferencia:
During the presentation, I will describe a new strategy for the synthesis of superior hierarchical catalysts, which lack long-range order but at local scale contain zeolite building units. [1,2] In fact, they are made out of fragments of one or even various zeolite structures and display improved accessibility, strong acidity, and excellent stability. Because of these features, they effectively catalyze reactions involving very bulky molecules, which currently are produced using highly corrosive homogenous catalysts (Fig. 1). To achieve this goal, we built on a well-known technique, namely the interconversion of zeolites, which we interrupted at different times to yield the desired amounts of building units of the zeolites involved. The addition of quaternary ammonium surfactants during their preparation allows the development of well-defined mesoporosity and large surface areas. Using this simple procedure, we were able to produce families of materials with controlled amounts of different zeolitic building units and, consequently, optimize their catalytic performance for various reactions including Friedel-Crafts alkylations and Claisen-Schmidt condensations, and the cracking of 1,3,5-triisopropylbenzene.
An important advantage of this strategy is that the physicochemical properties and, therefore the catalytic performance, of the hierarchical catalysts can be finely tuned by simply stopping the interzeolite transformation at different times. This creates countless opportunities for the development of hierarchical catalysts [3] with optimized properties and superior catalytic performance for those reactions in which zeolites present significant diffusion limitations (Fig. 1). This paves the way for the fabrication of hybrid hierarchical catalysts with optimized properties for those processes in which the combined use of different zeolites yields improved performance
Figure 1. Textural, structural, and morphological characterization of some intermediates of the interconversion of zeolite FAU into MFI and BEA structures.
References
[1] M. Mendoza-Castro, Z. Qie, N. Linares, J. García-Martínez, Nat. Comm., 2023, 14, 1256-1265
[2] M. Mendoza-Castro, E. De Oliveira-Jardim, N.T Ramírez-Márquez, C. A. Trujillo, N. Linares, J. García-Martínez, J. Am. Chem. Soc. 2022, 144, 11, 5163–5171
[3] A. Sachse, J. García-Martínez, J.; Chem. Mater. 2017, 29 (9), 3827– 3853
Conferencia divulgativa:
Además, a las 7 de la tarde, impartirá en el Aula Magna de la Facultad de Ciencias del Campus Miguel Delibes de Valladolid, la conferencia titulada
«Cómo reinventar nuestra relación con el planeta a escala molecular»
La entrada es libre hasta completar el aforo.
Datos biográficos del conferenciante:
Javier García Martínez has made groundbreaking contributions to the field of nanomaterials for energy applications. His pioneering work includes the discovery and commercialization of nanostructured catalysts for sustainable chemical and fuel production and the development of new synthetic strategies for the production of multifunctional materials. He has an impressive track record as an inventor, with over 50 patents to his name. Notably, 45 of these patents have been licensed to some of the largest chemical giants including Shell and Grace. He has also founded, grown, and eventually sold the technology-based company Rive Technology.
Professor of Inorganic Chemistry and Director of the Molecular Nanotechnology Lab, a world-leading research center working on the synthesis and application of nanostructured materials for the sustainable production of chemicals and energy at the University of Alicante, where he has led over 50 research projects, technology transfer agreements, and technology licensing contracts http://nanomol.es/en/home/
Founder of Rive Technology, a technology-based company that commercializes nanostructured catalysts that significantly reduce CO2 emissions while increasing energy efficiency. In 2019, W. R. Grace acquired this technology and now commercializes it globally https://grace.com/industries/refining-technologies/fcc-catalyst-application/
President of the International Union of Pure and Applied Chemistry (IUPAC), the recognized world authority in developing nomenclature and terminology, verified data, and standards for the advancement of chemistry https://iupac.org/
Founder and President of Celera, a talent acceleration program that supports and provides resources and mentoring to 10 young members every year. 80 young people have already benefited from this program. They have funded more than 10 companies valued at 500 million dollars and are mentoring other young people https://www.acelerame.org/
His contributions to catalysis, energy, and chemistry have been recognized with some of the most prestigious awards including Premio Rey Jaime I, 2014; Young Global Leader, 2009 – World Economic Forum; Innovator of the Year, 2007 – MIT; Emerging Researcher Award – American Chemical Society, 2015; Kathryn C. Hach Award for Entrepreneurial Success, 2018 – by the American Chemical Society.