Sintering of Pt nanoparticles dispersed on alumina and two types of silica supports has been investigated under oxidizing conditions by use of transmission electron microscopy. Particle size distributions have been measured and analyzed as a function of time (up to 24 h) and temperature (500, 550, and 600 °C). The measurements reveal transient bimodal and (sometimes) multimodal size distributions as the particles grow from 3 nm to about 10 nm. The likely role of support surface heterogeneity in the formation of bimodal size distributions has been analyzed theoretically. The experiments and the theoretical analysis stress limitations of conventional sintering models that operate with a mean particle size and a uniform support surface. Furthe...
The damaging effect of pollutants from exhaust gas of combustion engines on the human health and the...
One of the technologically most important requirements for the application of supported metal nanopa...
One of the technologically most important requirements for the application of supported metal nanopa...
Sintering of Pt nanoparticles dispersed on alumina and two types of silica supports has been investi...
Sintering of Pt nanoparticles dispersed on alumina and two types of silica supports has been investi...
Understanding how nanostructure and atomic-scale defects of the support affect metal catalyst nanopa...
Understanding how nanostructure and atomic-scale defects of the support affect metal catalyst nanopa...
In this Environmental Transmission Electron Microscopy (ETEM) study we examined the growth patterns ...
In this Environmental Transmission Electron Microscopy (ETEM) study we examined the growth patterns ...
Understanding how nanostructure and atomic-scale defects of the support affect metal catalyst nanopa...
To improve the understanding of sintering in diesel and lean-burn engine exhaust aftertreatment cata...
To improve the understanding of sintering in diesel and lean-burn engine exhaust aftertreatment cata...
In this Environmental Transmission Electron Microscopy (ETEM) study we examined the growth patterns\...
This study addresses the sintering mechanism of Pt nanoparticles dispersed on a planar, amorphous Al...
This study addresses the sintering mechanism of Pt nanoparticles dispersed on a planar, amorphous Al...
The damaging effect of pollutants from exhaust gas of combustion engines on the human health and the...
One of the technologically most important requirements for the application of supported metal nanopa...
One of the technologically most important requirements for the application of supported metal nanopa...
Sintering of Pt nanoparticles dispersed on alumina and two types of silica supports has been investi...
Sintering of Pt nanoparticles dispersed on alumina and two types of silica supports has been investi...
Understanding how nanostructure and atomic-scale defects of the support affect metal catalyst nanopa...
Understanding how nanostructure and atomic-scale defects of the support affect metal catalyst nanopa...
In this Environmental Transmission Electron Microscopy (ETEM) study we examined the growth patterns ...
In this Environmental Transmission Electron Microscopy (ETEM) study we examined the growth patterns ...
Understanding how nanostructure and atomic-scale defects of the support affect metal catalyst nanopa...
To improve the understanding of sintering in diesel and lean-burn engine exhaust aftertreatment cata...
To improve the understanding of sintering in diesel and lean-burn engine exhaust aftertreatment cata...
In this Environmental Transmission Electron Microscopy (ETEM) study we examined the growth patterns\...
This study addresses the sintering mechanism of Pt nanoparticles dispersed on a planar, amorphous Al...
This study addresses the sintering mechanism of Pt nanoparticles dispersed on a planar, amorphous Al...
The damaging effect of pollutants from exhaust gas of combustion engines on the human health and the...
One of the technologically most important requirements for the application of supported metal nanopa...
One of the technologically most important requirements for the application of supported metal nanopa...