Nanostructures prepared via laser ablation of tin in water

2017 ◽  
Vol 41 (19) ◽  
pp. 11308-11316 ◽  
Author(s):  
Mitsuhiro Honda ◽  
Takahiro Kondo ◽  
Tatsuki Owashi ◽  
Prabakaran Shankar ◽  
Satoru Iwamori ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Core Shell ◽  
Pulsed Lasers ◽  
Shell Nanostructures

Ablation of Sn in water with millisecond and nanosecond pulsed lasers produces different core@shell nanostructures.

scholarly journals Tunable Piezophotonic Effect on Core-Shell Nanoparticles Prepared by Laser Ablation in Liquids under External Voltage

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
A. K. Kodeary ◽  
S. M. Hamidi
Keyword(s):  
Laser Ablation ◽  
Lead Zirconate Titanate ◽  
Laser Pulses ◽  
Lead Zirconate ◽  
Core Shell ◽  
Laser Ablation In Liquid ◽  
Shell Nanoparticles ◽  
Nonlinear Properties ◽  
Shell Nanostructures ◽  
Core Shell Nanoparticles

We report an experimental study on the piezophotonic effect of gold and lead zirconate titanate (PbZrTiO3) nanoparticles (NPs) and also their core-shell nanostructures prepared by the laser ablation in liquid method. To obtain these NPs and composite materials, the targets were immersed in deionized water and a polymeric solution of polyvinyl pyrrolidone (PVP) under Nd:YAG laser pulses irradiation. Linear and nonlinear properties of these NPs were studied by optical spectroscopy and the Z-scan technique. Furthermore, tunable nonlinear properties of the NPs were measured under an external electric field under illumination to investigate the piezophotonic effect. Our results show that, at the interface of PZT and Au, due to the Schottky barrier, we have electron/hole recombination prevention, which leads to efficient enhancement in the nonlinear properties.

Carbon-Encapsulated Metal/Metal Carbide/Metal Oxide Core–Shell Nanostructures Generated by Laser Ablation of Metals in Organic Solvents

2018 ◽  
Vol 2 (1) ◽  
pp. 28-39 ◽  
Author(s):  
Dongshi Zhang ◽  
Chao Zhang ◽  
Jun Liu ◽  
Qi Chen ◽  
Xiaoguang Zhu ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Metal Oxide ◽  
Organic Solvents ◽  
Core Shell ◽  
Metal Carbide ◽  
Shell Nanostructures ◽  
Metal Metal

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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