Galvanic replacement reaction: A simple and powerful route to hollow and porous metal nanostructures

2007 ◽  
Vol 221 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Xianmao Lu ◽  
Jingyi Chen ◽  
S E Skrabalak ◽  
Younan Xia
Keyword(s):  
Porous Metal ◽  
Metal Nanostructures ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction

scholarly journals Effects of Ar or O2Gas Bubbling for Shape, Size, and Composition Changes in Silver-Gold Alloy Nanoparticles Prepared from Galvanic Replacement Reaction

2013 ◽  
Vol 2013 ◽  
pp. 1-10
Author(s):  
Md. Jahangir Alam ◽  
Masaharu Tsuji
Keyword(s):  
Ag Nanoparticles ◽  
Major Product ◽  
Metal Nanostructures ◽  
Galvanic Replacement ◽  
Silver Nanostructures ◽  
Alloy Nanoparticles ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Gas Bubbling ◽  
Composition Changes

The galvanic replacement reaction between silver nanostructures andAuCl4-solution has recently been demonstrated as a versatile method for generating metal nanostructures with hollow interiors. Here we describe the results of a systematic study detailing the morphological, structural, compositional, and spectral changes involved in such a heterogeneous reaction on the nanoscale. Effects of Ar or O2gas bubbling for the formation of Ag-Au alloy nanoparticles by the galvanic replacement between spherical Ag nanoparticles andAuCl4-especially were studied in ethylene glycol (EG) at150°C. The shape, size, and composition changes occur rapidly under O2bubbling in comparison with those under Ar bubbling. The major product after 60 min heating under Ar gas bubbling was perforated Ag-Au alloy particles formed by the replacement reaction and the minor product was ribbon-type particles produced from splitting off some perforated particles. On the other hand, the major product after 60 min heating under O2gas bubbling was ribbon-type particles. In addition, small spherical Ag particles are produced. They are formed through rereduction of Ag+ions released from the replacement reaction and oxidative etching of Ag nanoparticles by O2/Cl−in EG.

Galvanic replacement reaction: recent developments for engineering metal nanostructures towards catalytic applications

2017 ◽  
Vol 53 (53) ◽  
pp. 7135-7148 ◽  
Author(s):  
Anderson G. M. da Silva ◽  
Thenner S. Rodrigues ◽  
Sarah J. Haigh ◽  
Pedro H. C. Camargo
Keyword(s):  
Metal Nanostructures ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Recent Developments ◽  
Metallic Nanomaterials ◽  
Catalytic Applications

Recent developments to achieve further physicochemical control in metallic nanomaterials by galvanic replacement are discussed towards applications in catalysis.

scholarly journals Galvanic Replacement Reaction as a Route to Prepare Nanoporous Aluminum for UV Plasmonics

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 102 ◽  
Author(s):  
Denis Garoli ◽  
Andrea Schirato ◽  
Giorgia Giovannini ◽  
Sandro Cattarin ◽  
Paolo Ponzellini ◽  
...  
Keyword(s):  
Noble Metals ◽  
Volume Ratio ◽  
Porous Metal ◽  
Ultraviolet Region ◽  
Galvanic Replacement ◽  
Electromagnetic Spectrum ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Suitable Material ◽  
Plasmonic Material

There is a growing interest in extending plasmonics applications into the ultraviolet region of the electromagnetic spectrum. Noble metals are commonly used in plasmonic, but their intrinsic optical properties limit their use above 350 nm. Aluminum is probably the most suitable material for UV plasmonics, and in this work we fabricated substrates of nanoporous aluminum starting from an alloy of Al2Mg3. The porous metal is obtained by means of a galvanic replacement reaction. Such nanoporous metal can be exploited to achieve a plasmonic material suitable for enhanced UV Raman spectroscopy and fluorescence. Thanks to the large surface to volume ratio, this material represents a powerful platform for promoting interaction between plasmonic substrates and molecules in the UV.

Bimetallic Cu–Pd alloy multipods and their highly electrocatalytic performance for formic acid oxidation and oxygen reduction

2017 ◽  
Vol 5 (9) ◽  
pp. 4421-4429 ◽  
Author(s):  
Dong Chen ◽  
Pengcheng Sun ◽  
Hui Liu ◽  
Jun Yang
Keyword(s):  
Formic Acid ◽  
Oxygen Reduction ◽  
Formic Acid Oxidation ◽  
Acid Oxidation ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Electrocatalytic Performance ◽  
Pd Alloy

Nanoscale Cu–Pd alloy multipods were synthesized via the galvanic replacement reaction for catalyzing formic acid oxidation and oxygen reduction.

Bismuth-induced synthesis of Au–X (X = Pt, Pd) nanoalloys for electrocatalytic reactions

2021 ◽  
Author(s):  
Nan Wang ◽  
Wei Zhao ◽  
Miaolei Zhang ◽  
Pengfei Cao ◽  
Shengjun Sun ◽  
...  
Keyword(s):  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Reaction Method ◽  
Electrocatalytic Reaction ◽  
Electrocatalytic Reactions

The synthesis of Au–X (X = Pt, Pd) nanoalloys based on Bi as an intermediate using the galvanic replacement reaction method for electrocatalytic reaction.

Palladium Deposition on Nickel Wire Electrodes by a Galvanic Replacement Reaction

2019 ◽  
Vol 2 (3) ◽  
pp. 2337-2343 ◽  
Author(s):  
Yusuke Kobayashi ◽  
Hiromu Yoshida ◽  
Sunyhik Ahn ◽  
Gang Chang ◽  
Munetaka Oyama
Keyword(s):  
Galvanic Replacement ◽  
Nickel Wire ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction

Synthesis of silver microfibers with ultrahigh aspect ratio by galvanic replacement reaction

2019 ◽  
Vol 237 ◽  
pp. 121872 ◽  
Author(s):  
Harnchana Gatemala ◽  
Duangta Tongsakul ◽  
Suchapa Naranaruemol ◽  
Janjira Panchompoo ◽  
Sanong Ekgasit ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction
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