Monitoring of Galvanic Replacement Reaction between Silver Nanowires and HAuCl4by In Situ Transmission X-ray Microscopy

Nano Letters ◽  
2011 ◽  
Vol 11 (10) ◽  
pp. 4386-4392 ◽  
Author(s):  
Yugang Sun ◽  
Yuxin Wang
Keyword(s):  
Silver Nanowires ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
X Ray

Seed-Mediated Growth of High Yield Au Nanoplates with In-situ Generated Au Clusters though Galvanic Replacement

2021 ◽  
Author(s):  
Tianxiang Wang ◽  
Yucui Huangfu ◽  
Bintong Huang ◽  
Jing Li ◽  
Longfei Miao ◽  
...  
Keyword(s):  
High Yield ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Au Clusters ◽  
Photochemical Method ◽  
Au Cluster ◽  
Seed Mediated

A photochemical method is used to grow Au nanoplates in a high yield benefited from in-situ generated Au cluster seeds through galvanic replacement reaction. The morphology of nanoplates can be...

scholarly journals Dendritic Forest-Like Ag Nanostructures Prepared Using Fluoride-Assisted Galvanic Replacement Reaction for SERS Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1359
Author(s):  
Ming-Hua Shiao ◽  
Tsunghsueh Wu ◽  
Hung Ji Huang ◽  
Ching-Yi Peng ◽  
Yung-Sheng Lin ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Limit Of Detection ◽  
Optical Emission ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Electromagnetic Excitation ◽  
X Ray ◽  
Inductively Coupled ◽  
Surface Enhanced Raman

Dendritic forest-like Ag nanostructures were deposited on a silicon wafer through fluoride-assisted galvanic replacement reaction (FAGRR) in aqueous AgNO3 and buffered oxide etchant. The prepared nanostructures were characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, inductively coupled plasma–optical emission spectroscopy, a surface profiler (alpha step), and X-ray diffraction. Additionally, the dendritic forest-like Ag nanostructures were characterized using surface-enhanced Raman scattering (SERS) when a 4-mercaptobenzoic acid (4-MBA) monolayer was adsorbed on the Ag surface. The Ag nanostructures exhibited intense SERS signal from 4-MBA because of their rough surface, and this intense signal led to an intense local electromagnetic field upon electromagnetic excitation. The enhancement factor for 4-MBA molecules adsorbed on the Ag nanostructures was calculated to be 9.18 × 108. Furthermore, common Raman reporters such as rhodamine 6G, 4-aminothiolphenol, 5,5′-dithiobis-2-nitrobenzoic acid, and carboxyfluorescein (FAM) were characterized on these dendritic forest-like Ag nanostructures, leading to the development of an ultrasensitive SERS-based DNA sensor with a limit of detection of 33.5 nM of 15-mer oligonucleotide.

In situ preparation of porous Pd nanotubes on a GCE for non-enzymatic electrochemical glucose sensors

2015 ◽  
Vol 7 (20) ◽  
pp. 8605-8610 ◽  
Author(s):  
Qiang Wang ◽  
Qiyu Wang ◽  
Kun Qi ◽  
Tianyu Xue ◽  
Chang Liu ◽  
...  
Keyword(s):  
Glucose Sensors ◽  
Galvanic Replacement ◽  
Copper Nanowires ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Glass Carbon Electrode ◽  
In Situ Preparation ◽  
Glass Carbon ◽  
One Step

Porous Pd nanotubes were in situ fabricated on a glass-carbon electrode (GCE) via a one-step galvanic replacement reaction by using cheap, flexible, and ultralong copper nanowires as the sacrificial template.

In Situ Formation of Liquid Metals via Galvanic Replacement Reaction to Build Dendrite‐Free Alkali‐Metal‐Ion Batteries

2020 ◽  
Vol 132 (29) ◽  
pp. 12268-12275 ◽  
Author(s):  
Yu Ding ◽  
Xuelin Guo ◽  
Yumin Qian ◽  
Hongcai Gao ◽  
Daniel H. Weber ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Ion ◽  
Liquid Metals ◽  
Free Alkali ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Alkali Metal Ion ◽  
In Situ Formation
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