The synergistic effect of a well-defined Au@Pt core–shell nanostructure toward photocatalytic hydrogen generation: interface engineering to improve the Schottky barrier and hydrogen-evolved kinetics

2016 ◽  
Vol 52 (8) ◽  
pp. 1567-1570 ◽  
Author(s):  
Sung-Fu Hung ◽  
Ya-Chu Yu ◽  
Nian-Tzu Suen ◽  
Guan-Quan Tzeng ◽  
Ching-Wei Tung ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Surface Plasmon ◽  
Hydrogen Generation ◽  
Catalyst System ◽  
Localized Surface Plasmon ◽  
Core Shell ◽  
Interface Engineering ◽  
Proton Reduction ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Generation

A well-defined co-catalyst system TiO2nanotube–Au (core)–Pt (shell) was demonstrated to be the combination of the localized surface plasmon effect of gold and excellent proton reduction nature of platinum.

Size Effects on Photocatalytic H2 Generation with CdSe/CdS Core-Shell Nanocrystals

2015 ◽  
Vol 229 (1-2) ◽  
Author(s):  
Florian Ehrat ◽  
Thomas Simon ◽  
Jacek K. Stolarczyk ◽  
Jochen Feldmann
Keyword(s):  
Hydrogen Generation ◽  
Aqueous Dispersion ◽  
Core Shell ◽  
Ni Nanoparticles ◽  
Cdse Core ◽  
Photocatalytic Hydrogen Generation ◽  
Generation Capacity ◽  
Photocatalytic H2 Generation ◽  
Two Parameters

AbstractCdSe/CdS core-shell nanocrystals with controlled CdS shell thickness and CdSe core size were synthesized for several different values of these two parameters. The particles in aqueous dispersion were in situ decorated with Ni nanoparticles and evaluated for photocatalytic hydrogen generation capacity. The highest H

scholarly journals Tuning of Localized Surface Plasmon Resonance in Copper-Copper Oxide Core-Shell Quantum Dots for the Application in Biosensors

2020 ◽  
Author(s):  
Prabhash Prasannan Geetha ◽  
Ajith Ramachandran ◽  
Swapna S. Nair
Keyword(s):  
Quantum Dots ◽  
Surface Plasmon Resonance ◽  
Copper Oxide ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Particle Diameter ◽  
Noble Metal Nanoparticles ◽  
Localized Surface Plasmon ◽  
Core Shell ◽  
Chemical Route

Surface Plasmon Resonance (SPR) is an attracting property of certain transition metals when they are synthesized in nano-range giving rise to promising optical applications. However, most SPR and associated applications are limited to the noble metal nanoparticles, which limits their potential due to high production cost. We report surface plasmon resonance in copper-copper oxide core-shell quantum dots synthesized via chemical route studied by using UV-Visible spectrophotometry. Tuning of the plasmonic resonance with respect to the particle diameter is achieved by an inexpensive all chemical route. Photoluminescence measurements also support the data. This size reduction leads to remarkable changes in its optical response as compared to the bulk metal. The results point towards applications of these materials in tunable SPR based biosensors.

Influence of dimensionality and crystallization on visible-light hydrogen production of Au@TiO2 core–shell photocatalysts based on localized surface plasmon resonance

2018 ◽  
Vol 8 (4) ◽  
pp. 1094-1103 ◽  
Author(s):  
Bing Liu ◽  
Yan Jiang ◽  
Yin Wang ◽  
Shuxia Shang ◽  
Yuanman Ni ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Plasmon Resonance ◽  
Hydrogen Production ◽  
Visible Light ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Core Shell

We synthesized four Au@TiO2 nanostructures, which exhibit dimensionality- and crystallinity-dependent photocatalytic activity towards H2 generation.

Synergistic effect of g-C3N4, Ni(OH)2 and halloysite in nanocomposite photocatalyst on efficient photocatalytic hydrogen generation

2019 ◽  
Vol 138 ◽  
pp. 434-444 ◽  
Author(s):  
Mirabbos Hojamberdiev ◽  
Mohammad Mansoob Khan ◽  
Zukhra Kadirova ◽  
Kenta Kawashima ◽  
Kunio Yubuta ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Hydrogen Generation ◽  
Photocatalytic Hydrogen Generation

Controlled fabrication of Au@MnO2 core/shell assembled nanosheets by localized surface plasmon resonance

2021 ◽  
Vol 537 ◽  
pp. 147912
Author(s):  
Mengwei Gao ◽  
Yuanbo Song ◽  
Yidan Liu ◽  
Wentao Jiang ◽  
Jianchao Peng ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Core Shell

scholarly journals Enhanced Photocatalytic Hydrogen Generation by Optimized Plasmonic Hot Electron Injection in Structure-Adjustable Au-ZnO Hybrids

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 376
Author(s):  
Youlong Chen ◽  
Liang Ma ◽  
Sijing Ding
Keyword(s):  
Photocatalytic Activity ◽  
Transient Absorption ◽  
Hydrogen Generation ◽  
Electron Injection ◽  
Resonance Excitation ◽  
Core Shell ◽  
Hot Electron ◽  
Photocatalytic Hydrogen Generation ◽  
Hot Electron Injection ◽  
Apparent Quantum Efficiency

Plasmonic Au-ZnO hybrids with adjustable structures (including Au-decorated ZnO and core–shell Au@ZnO with dense and porous ZnO shells) and the optimized hot electron-driven photocatalytic activity were successfully prepared. It was found that the Au@ZnO core–shell hybrids with porous morphology had the highest plasmon-enhanced photocatalytic hydrogen generation activity under visible light irradiation. The wavelength-dependent photocatalytic tests verified that Au@ZnO with porous ZnO shells had the highest apparent quantum efficiency upon resonance excitation. The ultrafast transient absorption measurements revealed that Au@ZnO with porous ZnO shells had the fastest plasmon-induced hot electron injection, which was thought to be the reason for the improved photocatalytic activity. This work might provide a promising route to designing photocatalytic and photoelectric materials.

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