Projects

A lot of industrial and academic processes use zeolites as catalysts and adsorbents. The synthesis of zeolites is, for 99% of the cases, carried out in batch reactors. Yet, in classic chemical reactions, other reactor types offer unique selectivity and rate profiles. The semi-continuous or fed-batch reactor has not been truly explored for zeolite synthesis, save for a few trials in the host lab. In this proof of concept project we ...

Successful industrial uses of synthetic versions of chabazite (CHA), such as a catalyst for the methanol-to-olefins reaction (SAPO-34) and as a catalyst support for the selective catalytic reduction of NOx with NH3 (Cu-SSZ-13), reveal that the discovery of new zeolites and molecular sieves is valuable for advancing catalytic applications. The CHA topology is one of the framework types in the ABC-6 family, which is built by stacking of 6-ring ...

The ever-growing demand for energy has led to an increasing pressure on the energy production, which in its turn has motivated research for more energy efficient products. An example of such products are light emitting diodes (LEDs). The implementation of LEDs as replacement for conventional lighting products, such as light bulbs and fluorescent lamps, is predicted to lead to a reduction of the global energy consumption for lighting ...

Zeolites are microporous aluminosilicates with a fixed pore opening in the range of small molecules such as CO2 or methane. Additionally, their inner environments can be finetuned by ion exchange or by alterations in chemical composition making them an outstanding candidate for catalysis and adsorption and a key material offering technological solutions to current challenges surrounding us such as climate change and resource ...

The transition to a sustainable society needs renewable alternatives to replace fossil fuels. Lignocellulose, being a renewable resource and available on a global scale, has the potential to synthesize carbon-based materials, fuels, and chemicals. Lignin, one of the major components of lignocellulose, consists of phenolic units with high content of methoxyl groups. Thus, converting lignin fraction into phenolic materials or ...

The unique physiochemical properties of metals have contributed to several areas of extensive research relating to energy, environment, and medicine in the past few decades. Metal clusters (size < 2nm) are ensembles of two to several hundred metal atoms that have received increasing attention due to their unique size and shape dependent chemical, optical, electrical, and magnetic properties. From various metal clusters ...

Zeolites are used industrially on a large scale in adsorption, ion exchange and catalysis, based on a plethora of advantageous physicochemical properties, which are combined with a relatively straightforward synthesis using mostly low-value commodity chemicals. In catalysis however, their activity is often hampered by the high amount of micropores present, causing mass diffusion limitations or even accessibility problems. In ...

Zeolites are microporous crystalline aluminosilicates composed of three-dimensional arrangements of SiO4 and AlO4 tetrahedra. These materials have various applications in the fields of adsorption, catalysis, separation and ion exchange. The introduction of germanium during the synthesis of these zeolites is a strategy for accessing new structures, sometimes with extra-large pores, attractive for the catalytic ...