Webinar 2 - Operando STEM reactions and challenges with introducing water vapor applied to catalysts

Dr. Kinga Unocic | Oak Ridge National Laboratory
In this webinar, Dr. Unocic focuses on an operando closed-cell gas reaction (CCGR) studies performed using (scanning) transmission electron microscopy (STEM) to capture dynamic morphological changes in various material systems (catalysts and structural materials). For these experiments, we used Protochips Atmosphere holder that utilizes microelectromechanical systems (MEMS)-based heating microchips (E-chips). Examples of the experiments performed in dry and wet air will be discussed with integrated residual gas analyzer (RGA) system to provide a further validation of gas exposure conditions during reactions. Several sample preparation methods will be also described for various material form factors.