Easy Preparation of Electrode Surfaces with Dispersed Size-Controlled Au Nanoparticles by Electrodeposited PPI-Dendrimers as Templates

2017 ◽  
Vol 164 (6) ◽  
pp. H396-H406 ◽  
Author(s):  
Carlos Villena ◽  
José Losada ◽  
Beatriz Alonso ◽  
Carmen M. Casado ◽  
M. Pilar García Armada
Keyword(s):  
Au Nanoparticles ◽  
Electrode Surfaces ◽  
Size Controlled

scholarly journals Mesoporous Silica Supported Au Nanoparticles with Controlled Size as Efficient Heterogeneous Catalyst for Aerobic Oxidation of Alcohols

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Xuefeng Chu ◽  
Chao Wang ◽  
Liang Guo ◽  
Yaodan Chi ◽  
Xiaohong Gao ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Au Nanoparticles ◽  
Aerobic Oxidation ◽  
Aerobic Condition ◽  
Solid Supports ◽  
Ordered Mesoporous ◽  
Oxidation Of Alcohols ◽  
Size Controlled ◽  
Efficient Heterogeneous Catalyst ◽  
Catalytic Performances

A series of Au catalysts with different sizes were synthesized and employed on amine group functionalized ordered mesoporous silica solid supports as catalyst for the aerobic oxidation of various alcohols. The mesoporous silica of MCM-41 supported Au nanoparticles (Au-1) exhibited the smallest particle size at ~1.8 nm with superior catalytic activities owing to the confinement effect of the mesoporous channels. Au-1 catalyst is also very stable and reusable under aerobic condition. Therefore, this presented work would obviously provide us a platform for synthesizing more size-controlled metal catalysts to improve the catalytic performances.

scholarly journals Photo-induced generation of size controlled Au nanoparticles on pure siliceous ordered mesoporous silica for catalytic applications

2020 ◽  
Vol 295 ◽  
pp. 109952 ◽  
Author(s):  
Nghia Huu Le ◽  
Samar Hajjar-Garreau ◽  
Magali Bonne ◽  
Cristina Megías-Sayago ◽  
Benoît Louis ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Au Nanoparticles ◽  
Ordered Mesoporous Silica ◽  
Ordered Mesoporous ◽  
Catalytic Applications ◽  
Size Controlled

scholarly journals Plasmonic response and SERS modulation in electrochemical applied potentials

2017 ◽  
Vol 205 ◽  
pp. 537-545 ◽  
Author(s):  
G. Di Martino ◽  
V. A. Turek ◽  
C. Tserkezis ◽  
A. Lombardi ◽  
A. Kuhn ◽  
...  
Keyword(s):  
Applied Voltage ◽  
Au Nanoparticles ◽  
Electrochemical Cell ◽  
Optical Response ◽  
Electronic Interaction ◽  
Raman Amplification ◽  
Electrode Surfaces ◽  
Au Film

We study the optical response of individual nm-wide plasmonic nanocavities using a nanoparticle-on-mirror design utilised as an electrode in an electrochemical cell. In this geometry Au nanoparticles are separated from a bulk Au film by an ultrathin molecular spacer, giving intense and stable Raman amplification of 100 molecules. Modulation of the plasmonic spectra and the SERS response is observed with an applied voltage under a variety of electrolytes. Different scenarios are discussed to untangle the various mechanisms that can be involved in the electronic interaction between NPs and electrode surfaces.

scholarly journals Size-controlled, high optical quality ZnO nanowires grown using colloidal Au nanoparticles and ultra-small cluster catalysts

APL Materials ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 022518
Author(s):  
M. F. Lynam ◽  
N.-J. Ke ◽  
S. J. Bradley ◽  
T. Nann ◽  
A. Neiman ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Optical Quality ◽  
Zno Nanowires ◽  
Small Cluster ◽  
High Optical Quality ◽  
Colloidal Au ◽  
Size Controlled

Size-controlled preparation of gold nanoparticles with novel pH responsive gemini amphiphiles

2015 ◽  
Vol 3 (24) ◽  
pp. 6334-6340 ◽  
Author(s):  
Li Cheng ◽  
Xuefeng Li ◽  
Jinfeng Dong
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Phase Transfer ◽  
Ph Sensitive ◽  
Ph Responsive ◽  
Gemini Amphiphiles ◽  
Controlled Preparation ◽  
Size Controlled

Novel pH sensitive Di-CnPh gemini amphiphiles can act as both the phase-transfer reagent and stabilizer to make extremely small Au nanoparticles.

scholarly journals Size controllable redispersion of sintered Au nanoparticles by using iodohydrocarbon and its implications

2016 ◽  
Vol 7 (5) ◽  
pp. 3181-3187 ◽  
Author(s):  
Xinping Duan ◽  
Xuelin Tian ◽  
Jinhuo Ke ◽  
Yan Yin ◽  
Jianwei Zheng ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Size Controlled

A reverse agglomeration of sintered large Au particles into small ones with size controlled Au nanoparticles has been successfully developed.

Design of size-controlled Au nanoparticles loaded on the surface of ZnO for ethanol detection

CrystEngComm ◽  
2021 ◽  
Author(s):  
Jianpeng Li ◽  
Yifan Yang ◽  
Qiao Wang ◽  
Xu Cheng ◽  
Yibing Luo ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Au Nanoparticles ◽  
Schematic Diagram ◽  
Size Controlled

Schematic diagram of the reaction mechanism of the sensor in air and ethanol.

scholarly journals Uniform charging energy of single-electron transistors by using size-controlled Au nanoparticles

2012 ◽  
Vol 100 (3) ◽  
pp. 033101 ◽  
Author(s):  
Norio Okabayashi ◽  
Kosuke Maeda ◽  
Taro Muraki ◽  
Daisuke Tanaka ◽  
Masanori Sakamoto ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Single Electron ◽  
Single Electron Transistors ◽  
Charging Energy ◽  
Electron Transistors ◽  
Size Controlled
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