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Proceedings Paper

Nanoparticle synthesis via femtosecond laser reduction in liquid
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Paper Abstract

Uncapped “naked” Au, Ag, and Pd nanoparticles were synthesized using femtosecond laser-induced reduction of salt precursors in aqueous solution. Focusing femtosecond laser pulses into water induces optical breakdown of the medium, producing a dense plasma containing reactive electrons and radicals that can reduce metal ions to neutral metal atoms, which coalesce into nanoparticles. Manipulating the plasma composition by changing the solution pH and adding radical scavengers was found to enable improved control over the nanoparticle size distributions. The synthesized Au and Pd nanoparticles are catalytically active towards the hydrogenation of 4-nitrophenol to 4-aminophenol and could potentially be used in further catalysis applications.

Paper Details

Date Published: 2 March 2020
PDF: 8 pages
Proc. SPIE 11267, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXV, 112670I (2 March 2020); doi: 10.1117/12.2544448
Show Author Affiliations
Katharine Moore Tibbetts, Virginia Commonwealth Univ. (United States)

Published in SPIE Proceedings Vol. 11267:
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXV
Gediminas Račiukaitis; Carlos Molpeceres; Jie Qiao; Aiko Narazaki, Editor(s)

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