PhD fellow in "Synthesis of novel materials for photo(electro)catalytic CO2 conversion into value-added products"
Project supervisor: Pavla Eliášová
Development of novel photo(electro)catalysts for conversion of green-house gas CO2 is crucial to reach sustainable approach in carbon economy. Different materials have been studied; however, recent attention has turned to low-dimensional materials and improvement of their activity via enhancing the mass transfer and using metal nanoparticles as cocatalysts.
Three classes of materials will be studied in this project proposal: oxide semiconductors (e.g., Cu2O, CuO, NiO, TiO2), zeolites, and transition-metal carbides (MXenes).
- Oxide semiconductors are widely studied materials for photocatalytic conversion of CO2, nevertheless, their activity has not reached a level required for industrial application. There is still a lot of space for improvement via different strategies. In this project we aim incorporation of metal nanoparticles as cocatalysts.
- Zeolites are crystalline microporous aluminosilicates, which can be prepared also as titanosilicates in aluminium-free form. They can be prepared as three-dimensional materials as well as two-dimensional (2D) multilayered materials. The activity of 2D micro-mesoporous titanosilicate zeolites in CO2 photoconversion was confirmed in a previous study of our group. The catalytic activity was related to materials´ morphology and titanium species distribution over the crystals. The follow-up research focuses on enhancing the mass transfer of reactants and products using micro-mesoporous zeolites and introduction of metal nanoparticles as cocatalysts.
- Transition-metal carbides (MXenes) are a new class of two-dimensional materials. In first studies of photocatalytic reduction of CO2 MXenes revealed a potential to work well as photocatalyst and support for cocatalyst. But as-prepared multilayered MXenes have a very low surface area. To enhance their catalytic performance, we target to improve their textural properties and thus support the mass transfer of reactants and products to/from a cocatalyst.
For the proposed project we are looking for motivated students with experience in material chemistry and photo or electrocatalysis. We offer 4-years Ph.D. student position in an international group of scientists across multiple disciplines. Our group has a rich collaboration with international partners and industrial partners. We organize international conferences and workshops. Our PhD students regularly attend both international and national conferences.