Growing Crystals to Customize Catalysts
PNNL researchers are learning more about the structure, properties and reactivity of titanium dioxide materials with different crystal facets -- like the one here known as 401 facet-dominated anatase -- to help improve catalysts and potentially customize their properties for different applications. By carefully synthesizing materials with desired morphology and with uniform active surface centers, researchers gain information on where reactions are taking place. With support from DOE’s Basic Energy Sciences Program, this research, coupled with molecular modeling and simulation of crystal surfaces, provide insights into the reactivity of each single crystal facet. This integrated approach to study the relationship between the crystal structure, properties and reactivity provides researchers with the necessary tools to design materials that specifically target redox active compounds, such as vanadium dioxide, that may be used to achieve specific catalytic requirements.
Research Team: Lu Zhang; Nicholas Jaegers, Feng Gao, Huamin Wang, Yong Wang and Fan Lin (all PNNL), Yuan Chen (formerly of PNNL). Scanning Electron Microscope Image captured by Odeta Qafoku (PNNL).
Instrument – Helios NanoLab Dual Beam Scanning Electron Microscope in EMSL, the Environmental Molecular Sciences Laboratory, a DOE user facility located at PNNL.