Four UJI projects will research on the improvement and control of the properties of materials, the catalytic properties of Mxenes and new tools for green chemistry



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## Four UJI projects will research on the improvement and control of the properties of materials, the catalytic properties of Mxenes and new tools for green chemistry

22/11/2022 |
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Four Universitat Jaume I projects in the field of chemistry have obtained more than half a million euros in the latest call of the Spanish Plan for Scientific, Technical and Innovation Research 2021-2023 to study the preparation of materials with pre-programmed properties and the modulation of the attributes of catalysts for specific transformations; new tools in green chemistry for the capture and valorisation of CO₂; the development of the catalytic properties of MXenes in organic transformations; and the improvement of the performance and new applicabilities of colloidal nanocrystals.

The project "Smart NHCs for obtaining supramolecular assemblies and switchable catalysts" led by researchers Eduardo Peris Fajarnés and Macarena Poyatos de Lorenzo of the Organometallic Chemistry and Homogeneous Catalysis group, endowed with almost two hundred thousand euros, will deploy two lines of research with the aim of developing new supramolecular organometallic systems for use in host-guest chemistry and supramolecular catalysis, and will design reversible switchable catalysts for application in specific catalytic transformations.

Currently, one of the challenges in supramolecular chemistry is to control the functionalisation of supramolecular assemblies by designing sophisticated ligands that can act as structural and functional components and allow the preparation of materials with pre-programmed properties. Likewise, switchables incorporate stimuli-sensitive units that can confer a level of programmed control over chemical transformations, which would favour chemical transformations that are otherwise difficult to achieve and the modulation of catalyst properties for specific needs.

The study "New tools in green chemistry for the development of sustainable (bio)catalytic processes to valorise CO₂ and obtain high added value compounds" (Tools4Green) led by researchers Eduardo García-Verdugo Cepeda and Belén Altava Benito from the Sustainable and Supramolecular Chemistry group at the UJI and Professor Lozano from the Sustainable Chemistry-SC group at the University of Murcia, focuses on the design and application of new advanced green tools, including the use of chemo and active and stable biocatalysts in smart systems, where the use of volatile organic solvents will be avoided at all times, to move towards more efficient and sustainable chemical processes, compatible with environmental awareness.

The sustainability of chemical processes revolves around three main axes: the use of cheap and renewable materials for the synthesis of fuels and chemical products (circular economy), the development of robust, reliable and selective catalytic transformations, implemented in simple processes that allow easy separation of the reaction products, and the recovery and reuse of all the elements of the system. The Tools4Green project, endowed with one hundred and seventy thousand euros, will address one of the great challenges faced by our society, namely the capture and recovery of CO₂.

The project "Catalytic applications of MXenes functionalised with transition metals: organometallic and metallic nanoparticles" led by the researcher José Antonio Mata Martínez, head of the HyCaM-Catalytic Hybrid Materials group, member of the Institute of Advanced Materials and director of the Central Scientific Instrumentation Service, has been funded with more than 100,000 euros to analyse the functionalisation of MXenes with transition metals and the development of their catalytic properties in organic transformations.

MXenes, ultra-thin sheets of titanium carbides with special surface features, are excellent candidates for catalytic applications. Their physical and chemical properties (surface area, electronic structure and thermal stability) make them ideal candidates for immobilising metals and favouring interactions with the support, which improves their catalytic properties. The research team's previous studies have focused mainly on the processes of dehydrogenation and hydrogenation through molecular hydrogen, where they have developed a technology for storing hydrogen in liquid form using organic carriers based on these transformations.

The study "New strategies to manipulate the electronic structure of colloidal nanolayers" led by Juan Ignacio Climente Plasencia of the Quantum Chemistry (QQ) group, funded with thirty-six thousand euros, will investigate colloidal nanolayers, a new generation of nanocrystals whose physical response is significantly different from conventional nanocrystals, due to their quasi-2D geometry and the strong coulombic interactions within them. The research team will go further in the investigation and explore three alternative strategies, inspired by recent experimental advances, which will involve electron or confined vacancy exchange, interactions between these two elements and phase change.

Colloidal nanocrystals are semiconductor nanostructures whose electronic structure, defined by quantum mechanical principles, gives rise to extraordinary optoelectronic properties. While the first applications of nanocrystals have already entered the market, research on these objects continues to be extremely intense in all aspects, from their synthesis to their integration in devices, in order to improve their performance and extend their applicability to different functionalities.

**SPANISH RESEARCH PLAN**

The research staff of the Universitat Jaume I of Castelló has obtained 4.17 million euros from the State Research Agency, two more than in the previous call, for the development of 38 new research projects of the State Plan for Scientific, Technical and Innovation Research 2021-2023, which focuses its objectives on the most strategic sectors for recovery, such as health, ecological transition and digitalisation.

The success rate (number of projects approved out of the total submitted) stands at 70% (the national average is 50%) and with an average funding per project of around 110,000 euros and 14 more projects than in the previous edition. With the 2021 call, the Universitat Jaume I reaches 23.7 million euros of funding for R&D&I since the implementation of the Spanish Strategy for Science, Technology and Innovation a decade ago.

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