career: low temperature solution synthesis of intermetallic nanomaterials
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CAREER: Low Temperature Solution Synthesis of Intermetallic Nanomaterials Raymond E. Schaak, Pennsylvania State University, DMR-0748943. - PowerPoint PPT PresentationTRANSCRIPT
CAREER: Low Temperature Solution Synthesis of Intermetallic NanomaterialsRaymond E. Schaak, Pennsylvania State University, DMR-0748943
FeCl3
NaBH4,
FeSn2-Sn
20 nm
20 nm
Understanding how to control the synthesis of intermetallic compounds as nanocrystals is important for applications that include fuel cell catalysis, magnetic information storage, and nano-machines. We recently discovered that, under appropriate synthetic conditions, -Sn nanocubes react with metal salt solutions to form FeSn2 nanocubes with a variety of interesting hollow nanostructures. This template-directed nanostructure control is facilitated by the different diffusion characteristics of Fe into the top vs. side faces of -Sn during the Sn FeSn2 chemical conversion.
(Chou et al., J. Am. Chem. Soc. 2007, 129, 7339 – 7345.)
CAREER: Low Temperature Solution Synthesis of Intermetallic NanomaterialsRaymond E. Schaak, Pennsylvania State University, DMR-0748943
During the past year, seven undergraduate students representing five different majors have participated in research related to the NSF-sponsored project.
Jason Knight (biomedical engineering major) – Colloidal crystal assembly and template synthesis of metal and alloy nanostructures.
Trevor Ewers (chemistry major) – Synthesis of Fe-Ti organometallic complexes for decomposition into nanocrystalline Fe-Ti intermetallics.
Jeff Karnes (chemistry major) – Synthesis of gold/metal oxide core/shell nanocrystals via a one-step spontaneous electrochemical reaction.
James Fumiya Bondi
Nick Fox (NSF REU student, biochemistry major) – Synthesis of tin nanocrystals and gram-scale quantities of copper tin (Cu6Sn5) nanocrystals for testing in batteries.
Aaron Ofczarzak (chemical engineering major) – Designed and set up system for testing catalytic activity (CO oxidation) of intermetallic nanocrystals.
Matt Sanders (mechanical engineering major) – Synthesis of nickel and nickel oxide nanocrystals using polymers and biomolecules as surface stabilizers.
James Bondi (chemistry major) – Synthesis of copper tin nanocrystals by reaction of tin nanocrystals with copper salt solutions.