Our efforts include design and applications of unique in-situ spectroscopic characterization techniques for studies of catalysts, adsorbents and polymer/nanofiller interfaces. These techniques include in-situ DRIFTS modified with UV source, in-situ XRD-DSC and environmental TEM (E-TEM). One of the unique aspects of our research is in utilization of a new generation of E-TEM chips, which we modify with oxide films to study supported cluster mobility under reaction conditions. In collaboration with our BNL colleagues we also utilize in-situ EXAFS and XANES techniques, where we study catalysts under reaction conditions. These efforts can lead to better understanding the reaction mechanisms and catalyst’s behavior for gas and liquid phase reactions.
Stach, E., Li, Y., Zhao, S., Gamalski, A., Zakharov, D., Tappero, R., Chen-Weigart, K., Thieme, J., Jung, U., Elsen, A., Wu, Q., Orlov, A., Chen, J., Nuzzo, R., Frenkel, A., Characterizing Working Catalysts with Correlated Electron and Photon Probes, Microscopy and Microanalysis, 2015, 21, S3, 563-564. DOI: 10.1017/S143192761500361X
Ramakrishnan, G., Zhao, S., Han, W., Orlov, A., "Simultaneous observation of gas phase and surface species in photocatalytic reactions on nanosize Au modified TiO2: The next generation of DRIFTS systems", Chemical Engineering Journal, 2011, 170, 445-450.
Uchimiya, S., Orlov, A., Ramakrishnan, G. Sistani, K., "In Situ and Ex Situ Spectroscopic Monitoring of Biochar’s Surface Functional Groups", Journal of Analytical and Applied Pyrolysis, 2013, 102, 53–59.