Unraveling Surface Plasmon Decay in Core–Shell Nanostructures toward Broadband Light-Driven Catalytic Organic Synthesis

2016 ◽  
Vol 138 (21) ◽  
pp. 6822-6828 ◽  
Author(s):  
Hao Huang ◽  
Lei Zhang ◽  
Zhiheng Lv ◽  
Ran Long ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Organic Synthesis ◽  
Surface Plasmon ◽  
Core Shell ◽  
Shell Nanostructures

scholarly journals Surface plasmon-driven photocatalytic activity of Ni@NiO/NiCO3 core–shell nanostructures

RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 2733-2743
Author(s):  
Parisa Talebi ◽  
Harishchandra Singh ◽  
Ekta Rani ◽  
Marko Huttula ◽  
Wei Cao
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Surface Plasmon ◽  
Core Shell ◽  
Plasmonic Resonance ◽  
Surface Plasmonic Resonance ◽  
Shell Nanostructures

Surface plasmonic resonance enabled Ni@NiO/NiCO3 core–shell nanostructures as promising photocatalysts for hydrogen evolution under visible light.

scholarly journals Modeling of the surface plasmon resonance tunability of silver/gold core–shell nanostructures

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19616-19626 ◽  
Author(s):  
Dab Chahinez ◽  
Thomas Reji ◽  
Ruediger Andreas
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Chemical Sensors ◽  
Near Field ◽  
Field Enhancement ◽  
Noble Metal Nanoparticles ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Gold Core ◽  
Resonance Tunability

Tunable plasmonic noble metal nanoparticles are indispensable for chemical sensors and optical near field enhancement applications.

Coupling Resonances of Surface Plasmon in Gold Nanorod/Copper Chalcogenide Core−Shell Nanostructures and Their Enhanced Photothermal Effect

ChemPhysChem ◽  
2018 ◽  
Vol 19 (15) ◽  
pp. 1852-1858 ◽  
Author(s):  
Yingying Li ◽  
Guiming Pan ◽  
Qiyu Liu ◽  
Liang Ma ◽  
Ying Xie ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Gold Nanorod ◽  
Photothermal Effect ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Copper Chalcogenide

scholarly journals The Effect of Surface Plasmon Resonances on Spherical Magneto-Plasmonic Fe3O4@Ag Core-Shell Nanoparticles

2021 ◽  
Author(s):  
Kinde Yeneayehu ◽  
Teshome Senbeta ◽  
Belayneh Mesfin
Keyword(s):  
Surface Plasmon ◽  
Cross Sections ◽  
Effective Medium Theory ◽  
Plasmonic Nanostructures ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Host Matrix ◽  
Extinction Cross Section ◽  
Shell Nanostructures ◽  
Two Parameters

Abstract In this work, the scattering, absorption, and extinction cross-sections of 𝐹𝑒3𝑂4@Ag core/shell spherical nanostructures embedded in a dielectric host matrix are investigated theoretically. Electrostatic approximation and Maxwell-Garnet effective medium theory are employed to obtain the effective electric permittivity and magnetic permeability, as well as the corresponding absorption, scattering, and extinction cross-sections. Likewise, for a fixed size of QDs (of radius 𝑎𝑠 = 10 nm) numerical analysis is performed to see the effect of varying the metal fraction (𝛽) and the permittivity (𝜀ℎ) of the host matrix on the magneto-plasmonic nanostructures. The results show that graphs of absorption, scattering, and extinction cross-sections as a function of wavelength have two sets of resonance peaks in the UV and visible regions. These sets of peaks arise due to the strong coupling of the surface plasmon oscillations of silver with the excitonic state of the semiconductor/dielectric at the inner (𝐹𝑒3𝑂4@Ag) and outer (Ag/host) interfaces. The absorption and scattering crosssections are blue-shifted in the first peak and red-shifted for the second set of peaks as 𝛽 increases. Similarly, the extinction cross-section possesses two sets of resonance peaks which are enhanced for an increase in 𝜀ℎ or decrease of 𝛽; keeping one of these two parameters constant at a time. The results obtained may be utilized in applications that incorporates both the plasmonic and magnetic effects in core/shell nanostructures.

scholarly journals Iron Based Core-Shell Structures as Versatile Materials: Magnetic Support and Solid Catalyst

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 72
Author(s):  
Christian Zambrzycki ◽  
Runbang Shao ◽  
Archismita Misra ◽  
Carsten Streb ◽  
Ulrich Herr ◽  
...  
Keyword(s):  
Water Purification ◽  
Functional Materials ◽  
Core Material ◽  
Solid Catalyst ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
The Core ◽  
Shell Nanostructures ◽  
Sio2 Shell ◽  
Iron Based

Core-shell materials are promising functional materials for fundamental research and industrial application, as their properties can be adapted for specific applications. In particular, particles featuring iron or iron oxide as core material are relevant since they combine magnetic and catalytic properties. The addition of an SiO2 shell around the core particles introduces additional design aspects, such as a pore structure and surface functionalization. Herein, we describe the synthesis and application of iron-based core-shell nanoparticles for two different fields of research that is heterogeneous catalysis and water purification. The iron-based core shell materials were characterized by transmission electron microscopy, as well as N2-physisorption, X-ray diffraction, and vibrating-sample magnetometer measurements in order to correlate their properties with the performance in the target applications. Investigations of these materials in CO2 hydrogenation and water purification show their versatility and applicability in different fields of research and application, after suitable individual functionalization of the core-shell precursor. For design and application of magnetically separable particles, the SiO2 shell is surface-functionalized with an ionic liquid in order to bind water pollutants selectively. The core requires no functionalization, as it provides suitable magnetic properties in the as-made state. For catalytic application in synthesis gas reactions, the SiO2-stabilized core nanoparticles are reductively functionalized to provide the catalytically active metallic iron sites. Therefore, Fe@SiO2 core-shell nanostructures are shown to provide platform materials for various fields of application, after a specific functionalization.

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