Facile in situ preparation of noble metal nanoparticles supported on silica

2012 ◽  
Vol 7 (9) ◽  
pp. 901-903 ◽  
Author(s):  
Xinkui Wang ◽  
Zhixin Zhang ◽  
Christopher T. Williams ◽  
Chunyu Bao ◽  
Changhai Liang ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
In Situ Preparation

scholarly journals TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
H. Takei ◽  
J. Saito ◽  
K. Kato ◽  
H. Vieker ◽  
A. Beyer ◽  
...  
Keyword(s):  
Environmental Monitoring ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Food Additives ◽  
Skim Milk ◽  
Chemical Species ◽  
Noble Metal Nanoparticles ◽  
Surface Enhanced Raman ◽  
Mixture Samples

We report on a thin layer chromatograph (TLC) with a built-in surface enhanced Raman scattering (SERS) layer for in-situ identification of chemical species separated by TLC. Our goal is to monitor mixture samples or diluted target molecules suspended in a host material, as happens often in environmental monitoring or detection of food additives. We demonstrate that the TLC-SERS can separate mixture samples and provide in-situ SERS spectra. One sample investigated was a mixture consisting of equal portions of Raman-active chemical species, rhodamine 6 G (R6G), crystal violet (CV), and 1,2-di(4-pyridyl)ethylene (BPE). The three components could be separated and their SERS spectra were obtained from different locations. Another sample was skim milk with a trace amount of melamine. Without development, no characteristic peaks were observed, but after development, a peak was observed at 694 cm−1. Unlike previous TLC-SERS whereby noble metal nanoparticles are added after development of a sample, having a built-in SERS layer greatly facilitates analysis as well as maintaining high uniformity of noble metal nanoparticles.

A Recycling-Free Nanocatalyst System: The Stabilization of In Situ-Reduced Noble Metal Nanoparticles on Silicone Nanofilaments via a Mussel-Inspired Approach

ACS Catalysis ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2412-2418 ◽  
Author(s):  
Xiang Fei ◽  
Wangqing Kong ◽  
Xin Chen ◽  
Xuejiao Jiang ◽  
Zhengzhong Shao ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles

2D hydrogenated boride as a reductant and stabilizer for in situ synthesis of ultrafine and surfactant-free carbon supported noble metal electrocatalysts with enhanced activity and stability

2020 ◽  
Vol 8 (36) ◽  
pp. 18856-18862
Author(s):  
Saisai Gao ◽  
Yang Zhang ◽  
Jinglei Bi ◽  
Bin Wang ◽  
Chao Li ◽  
...  
Keyword(s):  
Carbon Black ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
In Situ Synthesis ◽  
Free Carbon ◽  
Noble Metal Nanoparticles ◽  
Enhanced Activity

Ultrafine, surfactant-free and high dispersed noble metal nanoparticles synthesized on carbon black with hydrogenated boride as reductant and stabilizer, which presented enhanced activity and durability relative to the commercial counterparts.

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