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

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

2013 ◽  
Vol 2013 ◽  
pp. 1-10
Author(s):  
Md. Jahangir Alam ◽  
Masaharu Tsuji

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.


2017 ◽  
Vol 5 (9) ◽  
pp. 4421-4429 ◽  
Author(s):  
Dong Chen ◽  
Pengcheng Sun ◽  
Hui Liu ◽  
Jun Yang

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


2021 ◽  
Author(s):  
Nan Wang ◽  
Wei Zhao ◽  
Miaolei Zhang ◽  
Pengfei Cao ◽  
Shengjun Sun ◽  
...  

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


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

2019 ◽  
Vol 237 ◽  
pp. 121872 ◽  
Author(s):  
Harnchana Gatemala ◽  
Duangta Tongsakul ◽  
Suchapa Naranaruemol ◽  
Janjira Panchompoo ◽  
Sanong Ekgasit ◽  
...  

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