Universal Scaling and Design Rules of Hydrogen-Induced Optical Properties in Pd and Pd-Alloy Nanoparticles

ACS Nano
Ferry Anggoro Ardy NugrohoChristoph Langhammer

Abstract

Hydride-forming metal nanoparticles sustaining localized surface plasmon resonance have emerged as prototypical material to study the fundamentals of hydrogen-induced phase transformations. They have also been proposed as signal transducers in next-generation hydrogen sensors. However, despite high current interest in hydrogen sorption by nanomaterials in general and such sensors in particular, the correlations between nanoparticle size, shape, and composition, the amount of hydrogen absorbed, and the obtained optical response have not been systematically experimentally studied. Focusing on hydrogenated Pd, PdAu- and PdCu-alloy nanoparticles, which are of particular interest in hysteresis-free plasmonic hydrogen sensing, we find that at practically important Au/Pd and Cu/Pd ratios the optical response to hydrogen concentration is linear and, more interestingly, can be described by a single universal linear trend if constructed as a function of the H/Pd ratio, independent of alloy composition. In addition to this correlation, we establish that the amplitude of optical signal change is defined solely by the spectral plasmon resonance position in the non-hydrogenated state for a specific nanoparticle composition. Thus, it can be m...Continue Reading

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Citations

Feb 19, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Jose-Ramón AresJose-Francisco Fernández
Feb 19, 2019·Advanced Materials·Frederik KotzBastian E Rapp
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Apr 29, 2021·ACS Applied Materials & Interfaces·Ida ÖstergrenChristian Müller
Dec 19, 2020·Nano Letters·Colin J MurphyChristoph Langhammer
Apr 10, 2019·ACS Applied Materials & Interfaces·Lars Johannes BannenbergBernard Dam
Nov 2, 2019·ACS Applied Materials & Interfaces·Kevin J PalmJeremy N Munday
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Sep 12, 2019·ACS Applied Materials & Interfaces·Lingling DuDachi Yang
Feb 11, 2020·ACS Sensors·Ediz HerkertHarald Giessen
Sep 21, 2021·ACS Applied Materials & Interfaces·Sarah LerchKasper Moth-Poulsen
Oct 29, 2021·ACS Applied Materials & Interfaces·Lars J BannenbergHerman Schreuders
Sep 9, 2019··Hoang M. LuongGeorge K. Larsen

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