About us

Junior Research Group Gutmann

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Research interests

We are interested in studying functional materials containing a complex multi-component structure by combining solid-state NMR and dynamic nuclear polarization (DNP)-techniques. The main goal is to get a deeper understanding of their mesoscopic structures (range of ca. 10-9 to 10-6 m), which define the macroscopic properties (i.e. optical properties, catalytic performance etc.) of the materials. Such information is crucial for a tailor-made design of specific devices with applications in life science.

An important research topic are inorganic/organic hybrid materials. These materials are based on natural polymers such as cellulose or on synthetic organic polymers. By an appropriate surface functionalization with inorganic molecules, small organic or biomolecules the materials can be tuned to become applicable as sensoric devices, in fluid flow control or optical devices.

A further important research topic are heterogeneous catalysts. As examples supported metal nanoparticles as well as porous catalysts are investigated, which are of high interest in technical reactions such as in CO oxidation, hydrogenation, Fischer-Tropsch reaction or in exhaust gas purification processes such as NOx reduction.

Specific questions

- Structure of molecules on surfaces of inorganic/organic hybrid materials

- Methodology development to address specific structural information of inorganic/organic hybrid materials and heterogeneous catalysts

- Analysis of active sites on the surface of heterogeneous catalysts

- Structure – reactivity relationship of heterogenized catalysts

- Study of probe molecules and reaction intermediates on surfaces of supported metal nanoparticles

Methods

- Multinuclear solid-state NMR (1H, 2H, 13C, 15N, 29Si, 27Al, 31P, 51V etc.)

- 1D and 2D solid-state NMR techniques (CP MAS, HETCOR etc.)

- Low temperature MAS

- DNP enhanced natural abundance 15N, 13C, 29Si solid-state NMR

- Selectively enhanced CP MAS DNP

- Quantum chemical calculations of solid-state NMR parameters