Kinetic measurements from in situ TEM observations
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Updated: Jun 26, 2026

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques
Published on: March 12, 2019
1LeRoy Eyring Center for Solid State Science, School of Materials, Arizona State University, Tempe, Arizona 85287-9506, USA. renu.sharma@asu.edu
Abstract:
Environmental transmission or scanning transmission electron microscope is ideally suited to observe gas solid interactions at nanoscale. It is shown that the time and temperature resolved data, obtained from in situ observations, can be used to obtain reaction rates and understand the kinetics of the processes. Low or high magnification images provide the change in length, area or volume with time at constant temperature and pressure conditions during nitridation of Cu-Cr thin films, deposition of Au particles, growth of Si nanowire and carbon nanotubes. Effect of electron beam is estimated by making observations with and without constant electron beam exposure. Quantitative electron energy loss spectroscopy is employed to measure the reduction rate of Ce(+4) in pure ceria, mixed oxides (ceria-zirconia) and catalyst (Rh-ceria-zirconia) powders.
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