Encapsulation of Au nanoparticles with well-crystallized anatase TiO2 mesoporous hollow spheres for increased thermal stability

RSC Advances ◽  
2014 ◽  
Vol 4 (14) ◽  
pp. 7313 ◽  
Author(s):  
Zewu Zhang ◽  
Yuming Zhou ◽  
Yiwei Zhang ◽  
Sanming Xiang ◽  
Shijian Zhou ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Au Nanoparticles ◽  
Hollow Spheres ◽  
Anatase Tio2

Au nanoparticles embedded into the inner wall of TiO2 hollow spheres as a nanoreactor with superb thermal stability

2013 ◽  
Vol 49 (30) ◽  
pp. 3116 ◽  
Author(s):  
Yu Yu ◽  
Chang Yan Cao ◽  
Zhe Chen ◽  
Hua Liu ◽  
Ping Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Au Nanoparticles ◽  
Hollow Spheres ◽  
Tio2 Hollow Spheres

Photocatalytic oxidation of toluene to benzaldehyde over anatase TiO2 hollow spheres with exposed {001} facets

2011 ◽  
Vol 12 (11) ◽  
pp. 946-950 ◽  
Author(s):  
Feng-Lei Cao ◽  
Jin-Guo Wang ◽  
Fu-Jian Lv ◽  
Die-Qing Zhang ◽  
Yu-Ning Huo ◽  
...  
Keyword(s):  
Photocatalytic Oxidation ◽  
Hollow Spheres ◽  
Anatase Tio2 ◽  
Tio2 Hollow Spheres

scholarly journals The Sintering of Au Nanoparticles on Flat {100}, {111} and Zigzagged {111}-Nanofacetted Structures of Ceria and Its Influence on Catalytic Activity in CO Oxidation and CO PROX

2020 ◽  
Author(s):  
O. S. Bezkrovnyi ◽  
P. Kraszkiewicz ◽  
W. Mista ◽  
L. Kepinski
Keyword(s):  
Electron Microscopy ◽  
Thermal Stability ◽  
Catalytic Activity ◽  
Beneficial Effect ◽  
Co Oxidation ◽  
Au Nanoparticles ◽  
Ceria Support ◽  
Ceria Catalysts ◽  
Thermal Stability Of

Abstract The thermal stability of Au nanoparticles on ceria support of various morphology (nanocubes, nanooctahedra, and {111}-nanofacetted nanocubes) in oxidizing and reducing atmospheres was investigated by electron microscopy. A beneficial effect of the reconstruction of edges of ceria nanocubes into zigzagged {111}-nanofacetted structures on the inhibition of sintering of Au nanoparticles was shown. The influence of different morphology of Au particles on various ceria supports on the reducibility and catalytic activity in CO oxidation, and CO PROX of Au/ceria catalysts was also investigated and discussed. It was shown, that ceria nanocubes with flat {110} terminated edges are more suitable as a support for Au nanoparticles, used to catalyze CO oxidation, than zigzagged {111}- nanofacetted structures. Graphic Abstract

Thermal stability of marks gold nanoparticles: A molecular dynamics simulation

2017 ◽  
Vol 31 (07) ◽  
pp. 1741001
Author(s):  
Yanlin Jia ◽  
Siqi Li ◽  
Weihong Qi ◽  
Mingpu Wang ◽  
Zhou Li ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Thermal Stability ◽  
Melting Temperature ◽  
Cohesive Energy ◽  
Au Nanoparticles ◽  
Mean Square Displacement ◽  
Dynamics Simulation ◽  
Structure Variation ◽  
Deformation Parameters ◽  
Thermal Stability Of

Molecular dynamics (MDs) simulations were used to explore the thermal stability of Au nanoparticles (NPs) with decahedral, cuboctahedral, icosahedral and Marks NPs. According to the calculated cohesive energy and melting temperature, the Marks NPs have a higher cohesive energy and melting temperature compared to these other shapes. The Lindemann index, radial distribution function, deformation parameters, mean square displacement and self-diffusivity have been used to characterize the structure variation during heating. This work may inspire researchers to prepare Marks NPs and apply them in different fields.

Anatase TiO2 hollow nanosheets: dual roles of F−, formation mechanism, and thermal stability

CrystEngComm ◽  
2014 ◽  
Vol 16 (16) ◽  
pp. 3431 ◽  
Author(s):  
Quanquan Shi ◽  
Yong Li ◽  
Ensheng Zhan ◽  
Na Ta ◽  
Wenjie Shen
Keyword(s):  
Thermal Stability ◽  
Formation Mechanism ◽  
Anatase Tio2 ◽  
Dual Roles
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