scholarly journals Condensation effect-induced improved sensitivity for SERS trace detection on a superhydrophobic plasmonic nanofibrous mat

RSC Advances ◽  
2017 ◽  
Vol 7 (70) ◽  
pp. 44492-44498 ◽  
Author(s):  
Xiaohong Liang ◽  
Han Zhang ◽  
Cheng Xu ◽  
Ding Cao ◽  
Qiang Gao ◽  
...  
Keyword(s):  
Noble Metal ◽  
Trace Detection ◽  
Condensation Effect

Superhydrophobic PAN/noble metal nanofibrous mats prove to be highly SERS-sensitive substrates for the trace detection of analyte molecules due to the condensation effect.

scholarly journals Multifunctional Fe3O4@mTiO2@noble metal composite NPs as ultrasensitive SERS substrates for trace detection

2019 ◽  
Vol 12 (8) ◽  
pp. 2017-2027 ◽  
Author(s):  
Hongyan Guo ◽  
Aiwu Zhao ◽  
Qinye He ◽  
Ping Chen ◽  
Yuanyuan Wei ◽  
...  
Keyword(s):  
Noble Metal ◽  
Metal Composite ◽  
Trace Detection ◽  
Sers Substrates

Analytical Electron Microscopy study of two vehicle-aged automotive exhaust catalysts having dissimilar activities

1989 ◽  
Vol 47 ◽  
pp. 272-273
Author(s):  
Sooho Kim ◽  
M. J. D’Aniello
Keyword(s):  
Electron Microscopy ◽  
Particle Size ◽  
Noble Metal ◽  
Catalyst Deactivation ◽  
Analytical Electron Microscopy ◽  
Microscopy Study ◽  
Metal Particles ◽  
Automotive Exhaust ◽  
Exhaust Catalysts ◽  
Analytical Electron

Automotive catalysts generally lose-agtivity during vehicle operation due to several well-known deactivation mechanisms. To gain a more fundamental understanding of catalyst deactivation, the microscopic details of fresh and vehicle-aged commercial pelleted automotive exhaust catalysts containing Pt, Pd and Rh were studied by employing Analytical Electron Microscopy (AEM). Two different vehicle-aged samples containing similar poison levels but having different catalytic activities (denoted better and poorer) were selected for this study.The general microstructure of the supports and the noble metal particles of the two catalysts looks similar; the noble metal particles were generally found to be spherical and often faceted. However, the average noble metal particle size on the poorer catalyst (21 nm) was larger than that on the better catalyst (16 nm). These sizes represent a significant increase over that found on the fresh catalyst (8 nm). The activity of these catalysts decreases as the observed particle size increases.

Interlayer confinement synthesis of Ir nanodots/dual carbon as an electrocatalyst for overall water splitting

2020 ◽  
Author(s):  
Yaru Li ◽  
Yu-Quan Zhu ◽  
Weili Xin ◽  
Song Hong ◽  
Xiaoying Zhao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Noble Metal ◽  
High Efficiency ◽  
Overall Water Splitting ◽  
Highly Dispersed

Rationally designing low-content and high-efficiency noble metal nanodots offers opportunities to enhance electrocatalytic performances for water splitting. However, the preparation of highly dispersed nanodots electrocatalysts remains a challenge. Herein, we...

Rebellious Tin Ore Processing with New Agents for Nonferrous and Noble Metal Recovery

2019 ◽  
Vol 55 (5) ◽  
pp. 832-838 ◽  
Author(s):  
T. N. Matveeva ◽  
V. V. Getman ◽  
M. V. Ryazantseva ◽  
A. Yu. Karkeshkina ◽  
L. B. Lantsova
Keyword(s):  
Noble Metal ◽  
Metal Recovery ◽  
New Agents ◽  
Ore Processing
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