Creating tailored metal and oxide architectures on the nanoscale requires atomic level control to design next-generation catalysts. In addition, understanding the growth of metal oxide materials is relevant for nanoparticle nucleation on surfaces. Shrinking the size of metal and altering the crystal structure of nanomaterials change their surface chemistry.

This project focused on atomic level growth of metal oxides on templated surfaces using a bottom-up approach. Surface functionalization is used to create active area sites for metal and metal oxide structures using area selective deposition (ASD) and nanoparticle synthesis. Oxidation of the surface of 2D materials leads to various functional groups that act as reactive sites with atomic layer deposition (ALD) metal-organic precursors or solution-based precursors to grow metal oxide materials with unique surface morphologies. This project uses a bottom-up approach for selective growth of nano- and mesoscale materials for designing heterogeneous catalysts.

Related Publications:

  1. Trought, M.; Perrine, K. A. Investigating the Relationship between Adhesion Forces and Surface Functionalization Using Atomic Force Microscopy. J. Chem. Educ., 2021 98 (5), 1768-1775.
  2. Trought, M.; Wentworth, I.; Leftwich, T. R.; Perrine, K. A. ; Effects of Wet Chemical Oxidation on Surface Functionalization and Morphology of Highly Oriented Pyrolytic Graphite. ChemRxiv. Preprint. 2020. 
  3. de Alwis, C.; Leftwich, T. R.; Mukherjee, P.; Denofre, A.; Perrine, K. A. Spontaneous Selective Deposition of Iron Oxide Nanoparticles on Graphite as model catalysts. Nanoscale Advances, 2019 1 (12), 4729-4744.
  4. Trought, M. A.; Wentworth, I.; de Alwis, C.; Leftwich, T. R.; Perrine, K. A. Influence of surface etching and oxidation on the morphological growth of Al2O3 by ALD Surface Science, 2019 (690) 121479. *highlighted on cover.