28 April 2021

Structure of Boron-Based Catalysts from 11B Solid-State NMR at 35.2T

Measurements performed at the National High Magnetic Field Laboratory provide unique insight into molecular structure of next-generation catalysts for the production of the widely used industrial chemical, propene.

What did scientists discover?

Using the highest-field nuclear magnetic resonance (NMR) spectrometer in the world, 11B NMR signal resolution can be increased enough to observe the molecular structures of important catalysts like hexagonal boron nitride and silica-supported boron oxide.

THE TOOLS THEY USED

This research was conducted in the MagLab 35.2 Series Connected Hybrid at the MagLab's DC Field Facility.

Why is this important?

Boron-based catalysts are highly selective catalysts for the oxidative dehydrogenation of light alkanes to olefins. Light olefins, such as propylene, are critical chemical feedstocks in the manufacture of plastics and other products. This ultra-high field NMR study enabled an accurate determination of structure within these important catalysts. This sheds new light on the active sites for catalysis within boron-based materials, which in turn will facilitate the rational design and development of next-generation catalysts.

Who did the research?

R.W. Dorn,1,2 M.C. Cendejas,3 K. Chen,4 I. Hung,4 N.R. Altvater,3 W.P. McDermott,3 Z. Gan,4 I. Hermans,3 A.J. Rossini1,2

1US DOE, Ames Laboratory, Ames IA; 2Iowa State University, Ames IA; 3University of Wisconsin-Madison, Madison WI; 4National MagLab, Tallahassee FL

Why did they need the MagLab?

The 35.2 Tesla Series-Connected Hybrid (SCH) magnet, is the only magnet capable of providing sufficient resolution and sensitivity to unambiguously identify the structural connectivity of all boron species in these catalysts. The SCH will permit many future studies of boron-based heterogenous catalysts.

Details for scientists

Funding

This research was funded by the following grants: I. Hermans & A.J. Rossini (NSF 1916809); G.S. Boebinger (NSF DMR-1644779)


For more information, contact Robert Schurko.

Details

  • Research Area: Chemistry, Chemistry- Analytical, Chemistry - Inorganic and Coordination, Chemistry - Materials
  • Research Initiatives: Energy, Life
  • Facility / Program: NMR/MRI
  • Year: 2021
Last modified on 28 April 2021