Biochemistry and Molecular Biology
Penn State Science
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Alyssa Rosas

Alyssa Rosas

Main Content

  • Chemistry Graduate Student (Mallouk)
221 South Frear Laboratory
University Park, PA 16802
Phone: (814) 863-9791

Research Interests

Characterization of late transition catalytic metal nanoparticles on early transition metal oxide supports.


Thomas Mallouk


Research Summary

Rosas Research Image

Late transition metal nanoparticles are important in industrially relevant reactions that rely on the use of heterogeneous catalysis. Iridium has been used as an oxygen evolution electrocatalyst and silver supported on alumina is used in the production of ethylene oxide. At high temperature, deactivation of supported catalytic nanoparticles can occur. We have shown that oxide-supported nanoparticles are stabilized through a d-acid/base interaction. I aim to explore this concept further, synthesizing catalytically relevant supported atoms and small clusters of late transition metal ions, and characterizing the thermodynamics of chemical bonding at the metal-support interface.

Selected Publications


  • 2-Dimensional & Layered Materials Seminar Series, University Park, PA, November 2016. “Characterization of single atom iridium catalysts supported on niobium oxide nanosheets.”.
  • 252nd American Chemical Society National Meeting, Philadelphia, PA, August 2016. “Investigating the bonding between metal-oxide supports and metal nanoparticles.”

Honors and Awards

  • Alfred P. Sloan Minority PhD Scholar
  • Bunton-Waller Fellow