scholarly journals Precise Temperature Measurement Using Noble Metal Thermocouples

Noble Metals ◽  
10.5772/33116 ◽  
2012 ◽  
Author(s):  
Yasser A.
Keyword(s):  
Temperature Measurement ◽  
Noble Metal

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...

Temperature Measurement in Laminar Free Convection Using Electro-Optic Holography

1997 ◽  
Vol 7 (9) ◽  
pp. 1893-1898 ◽  
Author(s):  
G. Schirripa Spagnolo ◽  
D. Ambrosini ◽  
A. Ponticiello ◽  
D. Paoletti
Keyword(s):  
Free Convection ◽  
Temperature Measurement ◽  
Electro Optic

Study on Temperature Measurement using MRI during Acupuncture and Moxibustion

2015 ◽  
Vol 135 (10) ◽  
pp. 1205-1209
Author(s):  
Suguru Nakamura ◽  
Masamichi Nakamura ◽  
Eiichi Maeda ◽  
Yoshio Nikawa
Keyword(s):  
Temperature Measurement ◽  
Acupuncture And Moxibustion
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