Synthesis and characterization of Pd nanoparticles for plastic plasmonic sensing applications
As a response to the above, this thesis discusses the synthesis of palladium nanoparticles with a standard surfactant as a stabilizer together with their characterization. Nanoforms of palladium are a perfect platform for hydrogen sensing, forming a hydride when exposed to hydrogen, making them very selective. However, there are compounds which strongly influence hydrogen sensing and often obscure the activity of palladium nanoparticles. Four common capping agents utilized in palladium nanoparticles synthesis were investigated to address this issue: hexadecyltrimethylammonium bromide (CTAB), hexadecyltrimethylammonium chloride (CTAC), tetraoctylammonium bromide (TOAB), polyvinylpyrrolidone (PVP).
Palladium nanoparticles were applied towards hydrogen sensing giving promising results. In order to achieve the goal to create a hydrogen sensor, nanoparticles were successfully incorporated into a poly(methyl methacrylate) (PMMA) polymer matrix. The created nanocomposite serves as a platform for two hydrogen sensing devices with plasmonic optical read-outs. On top of that it was found that among all four tested capping agents for palladium nanoparticles, PVP enhances hydrogen absorption kinetics whereas CTAB, CTAC and TOAB decrease absorption kinetics.
Chalmers, Kemi och kemiteknik, Tillämpad kemi, Kasper Moth-Poulsen Group
Alicja Stolaś, Iwan Darmadi, Lucy Cusinato, Ferry A.A. Nugroho, Anders Hellman, Kasper Moth Poulsen, Christoph Langhammer. The Impact of Surfactants and Stabilizers on Palladium Nanoparticle Surface Catalized Reactions With Hydrogen
Nanoplasmonisk Sensing's Heliga Graal
Stiftelsen för Strategisk forskning (SSF), 2017-01-01 -- 2021-12-31.
Nanovetenskap och nanoteknik (SO 2010-2017, EI 2018-)
Chalmers tekniska högskola
Hållö 8th floor Chemistry Department