2019 MRS Spring Meeting & Exhibit

MRS Awards Ceremony & Innovation in Materials Characterization Award Talk

Wednesday, April 24
9:00 am – 10:15 am
PCC North, 100 Level, Ballroom 120 D

Join us to honor our distinguished award recipients!
Come and celebrate with us to honor our distinguished award recipients at the 2019 MRS Spring Meeting Awards Ceremony. Awards include the Innovation in Materials Characterization, Mid-Career Researcher, MRS Impact, Outstanding Young Investigator, MRS Postdoctoral, Graduate Student Gold and Silver, and the Arthur Nowick Graduate Student Award.

Stig Helveg

Stig Helveg, Haldor Topsoe A/S
Electron Microscopy Advances in Catalysis

 The Innovation in Materials Characterization Award honors an outstanding advance in materials characterization that notably increases knowledge of the structure, composition, in situ behavior under outside stimulus, electronic behavior, or other characterization feature, of materials. It is not limited to the method of characterization or the class of materials observed.

for pioneering atomic-scale transmission electron microscopy under reactive gas environments, leading to groundbreaking insights in catalysis, crystal growth, and corrosion.

Electron Microscopy Advances in Catalysis

In recent years, electron microscopy has progressed significantly for studying nanostructured catalysts at the atomic level. In particular, atomic-resolution electron microscopy of catalysts immersed in reactive gas environments has become available by advances of differentially pumped electron microscopes and closed gas cells. Hereby, electron microscopy opens up for monitoring catalysts at the atomic scale during the exposure to gases at pressures of up to atmospheric levels and temperatures of up to several hundred centigrade, and for correlating time-resolved observations with concurrent measurements of the catalytic functionality. These emerging in situ/operando electron microscopy capabilities make information about surface dynamics and reactivity accessible and establish a foundation for “live” observations of dynamic processes and functional behavior at the atomic level. In this contribution, I will outline such electron microscopy advances in catalysis research and discuss how the dynamic observations can help uncover the role of gas-surface interactions on the working catalysts.

About Stig Helveg

Stig Helveg received a PhD degree in physics from the Aarhus University in 2000. He then joined Haldor Topsoe A/S  as a postdoctoral researcher to later become a staff scientist in 2003. Today he serves as a Fellow at Haldor Topsoe A/S, where he leads the company’s activities on in situ electron microscopy in catalysis R&D. Helveg's research focuses on understanding dynamic processes and functions in catalysis at the atomic scale. He has contributed to developing instrumentation, methodologies and applications of transmission electron microscopy for in situ/operando studies of catalysts under relevant reaction conditions and at the atomic level. He has worked interdisciplinarily with international leading experts to integrate advances from electron microscopy, catalysis, chemical engineering, surface science and microelectromechanical system technology. Helveg is an affiliated professor at the Niels Bohr Institute, University of Copenhagen, and received the Berzelius Prize in 2012 and the EliteForsk Prize in 2018.

MRS acknowledges the generosity of Professors Gwo-Ching Wang and Toh-Ming Lu for endowing this award.