About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Hybrid Organic—Inorganic Materials for Alternative Energy
|
Presentation Title |
Oxide Nanosheets in Hybrid Structures |
Author(s) |
Alp Sehirlioglu, Kevin Pachuta, Maria Escamilla, Katelynn Edgehouse , Emily Pentzer |
On-Site Speaker (Planned) |
Alp Sehirlioglu |
Abstract Scope |
Transition-metal-oxide nanosheets have sparked interest due to the multi-valent state of the cations that uniquely interact with their environment. Top-down approaches have been used to chemically exfoliate cobalt oxide nanosheets (CONs) from LiCoO2. Their morphology, size, and defect chemistry, as well as yield, has been controlled by processing parameters including post-exfoliation modifications. Both the nanosheets and their ready-to-exfoliate high surface area powder counterparts were found to be good catalytic materials as was observed for methylene blue degradation, CO oxidation, BPA removal from water and combustion of propellants. To access high surface area of the nanosheets with minimal material, CONs were used as particle surfactants to stabilize droplets of monomer in water, such that dispersion polymerization could be used to prepare “armored particles.” Here, a solid polymer particle is coated with CONs; the performance of these hybrid structures in BPA removal was compared to the nanosheets alone and the precursor powder. |