Noble Metal/Tin Dioxide Hierarchical Hollow Spheres for Low-Concentration Breath Methane Sensing

2018 ◽  
Vol 1 (11) ◽  
pp. 6327-6336 ◽  
Author(s):  
Liping Yang ◽  
Xinyuan Zhou ◽  
Longfei Song ◽  
Ying Wang ◽  
Xiaofeng Wu ◽  
...  
2020 ◽  
Vol 534 ◽  
pp. 147327
Author(s):  
Tamás Gyulavári ◽  
Kata Kovács ◽  
Zoltán Kovács ◽  
Enikő Bárdos ◽  
Gábor Kovács ◽  
...  

2018 ◽  
Vol 514 ◽  
pp. 791-800 ◽  
Author(s):  
Jiabai Cai ◽  
Xueqing Wu ◽  
Yuehai Li ◽  
Ye Lin ◽  
Hui Yang ◽  
...  

2016 ◽  
Vol 45 (18) ◽  
pp. 7912-7920 ◽  
Author(s):  
Liang Min ◽  
Tao Li ◽  
Qi Tan ◽  
Xiaoping Tan ◽  
Wu Pan ◽  
...  

Hierarchical porous silica nanotubes or porous silica hollow spheres were prepared employing a low concentration of G-quartet supramolecular aggregates as a template.


Micromachines ◽  
2014 ◽  
Vol 5 (4) ◽  
pp. 1296-1309 ◽  
Author(s):  
Enza Fazio ◽  
Fortunato Neri ◽  
Rosina Ponterio ◽  
Sebastiano Trusso ◽  
Matteo Tommasini ◽  
...  

2016 ◽  
Vol 169 ◽  
pp. 73-76 ◽  
Author(s):  
H.M. Yang ◽  
S.Y. Ma ◽  
G.J. Yang ◽  
W.X. Jin ◽  
T.T. Wang ◽  
...  

Author(s):  
Sooho Kim ◽  
M. J. D’Aniello

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.


Author(s):  
Yaru Li ◽  
Yu-Quan Zhu ◽  
Weili Xin ◽  
Song Hong ◽  
Xiaoying Zhao ◽  
...  

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...


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