In Situ Characterization of Nanoscale Gas-Solid Interactions by TEM

Observing and measuring the dynamic changes that take place at the nanometer scale during the synthesis and use of carbon nanotubes (CNTs), nanowires, and other active nanostructures is vital for understanding and ultimately controlling their properties.  Characterization of such complex, time-dependent transformations requires the use of advanced methodologies that enable the underlying chemical and physical processes to be identified and understood. The project team employs environmental scanning transmission electron microscopy (ESTEM) for in situ observations and measurements at the nanoscale of dynamic processes affecting both the material structure and chemistry during gas-solid interactions.