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Meeting MS&T23: Materials Science & Technology
Symposium Advanced Ceramics for Environmental Remediation
Presentation Title Plasmonic Gas Sensors for Environmental Monitoring
Author(s) Alessandro Martucci
On-Site Speaker (Planned) Alessandro Martucci
Abstract Scope Plasmonic gas sensors are optical sensors that use localized surface plasmons or extended surface plasmons as transducing platform. Surface plasmons are very sensitive to dielectric variations of the environment or to electron exchange, and these effects have been exploited for the realization of sensitive gas sensors. The localized surface plasmon resonance of Au nanoparticles (NPs) is sensitive to both dielectric constant changes in the supporting matrix and to changes in electron density of the metal NPs and both these effects have been exploited for gas sensing applications. Au NPs embedded in different matrices (TiO2, NiO, ZnO, WO3) showed highly sensitive, and reversible changes in optical absorption when exposed to H2, NOx, H2S and CO species at 250C. If Pt NPs are added, the thin films showed room-temperature responses to H2. Moreover, dark field microscopy has been used for direct observation of the kinetics of H2 interaction with single gold nanorods.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Materials for Photocatalytic and Photoelectrochemical CO2 Reduction
Building Oxide Semiconductor Structures; From Atom Structure to Microstructure
Ceramic Materials for Sustainable Capture and Reuse of Plant Nutrients as Fertilizer
Confinement and Heterointerface Re-construction in 2D Materials for Water Oxidation Catalysis
Copper Oxide Nanoparticles as a Metal Ion Source for Enhanced Catalytic Stability of Laccase
Design and Structuring of Microporous Ceramics for CO2 Capture and Utilization
Engineered Ceramics for Enhanced Weathering CO2 Capture
Highly Performing Solar-Light-Driven Photodegradation of Metronidazole by Nickel Hexacyanoferrate Nanocubes
In Situ Vibrational Spectroscopy Studies of CO2 Electroreduction at Cu-based Electrocatalysts
Multifunctional Materials for Emerging Technologies
Photocatalysis and Photosensitization Using Atomically Precise Metal Nanoclusters for Solar Energy Harvesting and Conversion
Plasmonic Gas Sensors for Environmental Monitoring
Porous 2D Materials for Water Remediation and Diagnostics
Small yet Bright?! Microwave-assisted Synthesis of Upconverting Nanoparticles
Stripping and Regeneration of Magnetite Adsorbent Used in an Ion Exchange System
The Multipurpose Aspect of Thin Film Ceramic Materials for Photovoltaics and Photocatalysis

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