A Wulff in a Cage: The Confinement of Substrate-Based Structures in Plasmonic Nanoshells, Nanocages, and Nanoframes Using Galvanic Replacement

ACS Nano ◽  
2016 ◽  
Vol 10 (6) ◽  
pp. 6354-6362 ◽  
Author(s):  
Maryam Hajfathalian ◽  
Kyle D. Gilroy ◽  
Spencer D. Golze ◽  
Ali Yaghoubzade ◽  
Eredzhep Menumerov ◽  
...  
Keyword(s):  
Galvanic Replacement

scholarly journals Comparison of nanostructures obtained from galvanic replacement in water and an ionic liquid for applications in electrocatalysis and SERS

2012 ◽  
Vol 25 ◽  
pp. 87-90 ◽  
Author(s):  
Andrew Pearson ◽  
Anthony P. O'Mullane ◽  
Suresh K. Bhargava ◽  
Vipul Bansal
Keyword(s):  
Ionic Liquid ◽  
Galvanic Replacement

scholarly journals Growth mechanisms of Ag and Cu nanodendrites via Galvanic replacement reactions

2021 ◽  
Author(s):  
Jialu Chen ◽  
Jemima J. Davies ◽  
Alister S. Goodfellow ◽  
Sarah M.D. Hall ◽  
Helena G. Lancaster ◽  
...  
Keyword(s):  
Galvanic Replacement ◽  
Growth Mechanisms

pH-Dependent Galvanic Replacement of Supported and Colloidal Cu2O Nanocrystals with Gold and Palladium

Small ◽  
2015 ◽  
Vol 11 (32) ◽  
pp. 3942-3953 ◽  
Author(s):  
Mariano D. Susman ◽  
Ronit Popovitz-Biro ◽  
Alexander Vaskevich ◽  
Israel Rubinstein
Keyword(s):  
Galvanic Replacement ◽  
Ph Dependent

scholarly journals Superhydrophobic Film on Hot-Dip Galvanized Steel with Corrosion Resistance and Self-Cleaning Properties

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 687 ◽  
Author(s):  
Chongchong Li ◽  
Ruina Ma ◽  
An Du ◽  
Yongzhe Fan ◽  
Xue Zhao ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Photoelectron Spectroscopy ◽  
Copper Nitrate ◽  
Galvanized Steel ◽  
Electrochemical Technique ◽  
Etching Time ◽  
Galvanic Replacement ◽  
Water Contact ◽  
X Ray ◽  
Self Cleaning

Super-hydrophobic film with hierarchical micro/nano structures was prepared by galvanic replacement reaction process on the surface of galvanized steel. The effects of the etching time and copper nitrate concentration on the wetting property of the as-prepared surfaces were studied. Scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and electrochemical technique were employed to characterize the surface morphology, chemical composition, and corrosion resistance. The stability and self-cleaning property of the as-fabricated super-hydrophobic film were also evaluated. The super-hydrophobic film can be obtained within 3 min and possesses a water contact angle of 164.3° ± 2°. Potentiodynamic polarization measurements indicated that the super-hydrophobic film greatly improved the corrosion resistance of the galvanized steel in 3.5 wt % NaCl aqueous solution. The highest inhibition efficiency was estimated to be 96.6%. The obtained super-hydrophobic film showed good stability and self-cleaning property.

scholarly journals PVP-mediated galvanic replacement growth of AgNPs on copper foil for SERS sensing

2020 ◽  
Vol 15 (9) ◽  
pp. 590-594
Author(s):  
Hui Xiang Wu ◽  
Ming Cong Rong ◽  
Yi Ma ◽  
Shan Duo Chen
Keyword(s):  
Copper Foil ◽  
Galvanic Replacement ◽  
Sers Sensing

scholarly journals “Green” Synthesis of Metallic Nanoparticles by Sonoelectrochemical and Sonogalvanic Replacement Methods

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Оrest Kuntyi ◽  
Galyna Zozulya ◽  
Andriy Kytsya
Keyword(s):  
Green Synthesis ◽  
Electrochemical Reduction ◽  
Metallic Nanoparticles ◽  
Bimetallic Nanoparticles ◽  
Galvanic Replacement ◽  
Pulsed Ultrasound ◽  
Environmental Friendliness ◽  
And Shock Waves ◽  
Sonoelectrochemical Synthesis

The main features of the “green” synthesis of metallic nanoparticles (MNPs) by the sonoelectrochemical methods are manufacturability, environmental friendliness, and the possibility of controlling the geometry of the forming particles. The electrochemical reduction technique allows efficiently designing the metal nanoparticles and provides the control of the content of components of bimetallic nanoparticles, as well as minimizing the number of precursors in working solutions. Due to the generation of turbulence, microjets, and shock waves, ultrasound increases mass transfer and formation of radicals in aqueous solutions and, accordingly, accelerates the processes of nucleation and growth of MNPs. Therefore, this hybrid method, which combines electrolysis and ultrasound, has attracted the interest of researchers in the last two decades as one of the most promising techniques. The present work presents a short analysis of the reference literature on sonoelectrochemical synthesis of metallic and bimetallic nanoparticles. The main factors influencing the geometry of nanoparticles and their size distribution are analyzed. The use of pulsed ultrasound and pulsed current supply during sonoelectrochemical synthesis is especially effective in designing MNPs. Emphasis is placed on the role of surfactants in the formation of MNPs and sacrificial anodes in providing the algorithm: “anodic dissolution-electrochemical reduction of metal-nucleation and formation of МNPs.” It is noted that ultrasound allows synthesizing the MNPs and M1M2NPs during the galvanic replacement, and an analogy of the formation of nanoparticles by sonogalvanic replacement and sonoelectrochemical method is shown.

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