title: Multiphoton lithography of nanocrystalline platinum and palladium for site-specific catalysis in 3D microenvironments.
abstract: Integration of catalytic nanostructured platinum and palladium within 3D microscale structures or fluidic environments is important for systems ranging from micropumps to microfluidic chemical reactors and energy converters. We report a straightforward procedure to fabricate microscale patterns of nanocrystalline platinum and palladium using multiphoton lithography. These materials display excellent catalytic, electrical, and electrochemical properties, and we demonstrate high-resolution integration of catalysts within 3D defined microenvironments to generate directed autonomous particle and fluid transport.
authors.affiliation: Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.forename: Lauren D
authors.initials: LD
authors.lastname: Zarzar
authors.forename: B S
authors.initials: BS
authors.lastname: Swartzentruber
authors.forename: Jason C
authors.initials: JC
authors.lastname: Harper
authors.forename: Darren R
authors.initials: DR
authors.lastname: Dunphy
authors.forename: C Jeffrey
authors.initials: CJ
authors.lastname: Brinker
authors.forename: Joanna
authors.initials: J
authors.lastname: Aizenberg
authors.forename: Bryan
authors.initials: B
authors.lastname: Kaehr
mesh_terms: D002384:Catalysis; D053768:Metal Nanoparticles / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D010984:Platinum; D010165:Palladium