scholarly journals Supported Magnetic Nanoclusters: Soft Landing of Pd Clusters on a MgO Surface

2002 ◽  
Vol 89 (17) ◽  
Author(s):  
M. Moseler ◽  
H. Häkkinen ◽  
U. Landman
Keyword(s):  
Soft Landing ◽  
Magnetic Nanoclusters ◽  
Pd Clusters ◽  
Mgo Surface

In search of a soft landing

2019 ◽  
Author(s):  
Quan-Hoang Vuong
Keyword(s):  
Soft Landing

In search of a soft landing (Vietnam Investment Review; May 7, 2000)

'Soft Landing' in the ERM2: Lessons from Slovenia

2005 ◽  
Author(s):  
Velimir Anton Bole ◽  
Dusan Mramor
Keyword(s):  
Soft Landing

Adsorption of Carbon Monoxide on Pd/SiO2/Si(111) Studied by Core-Level Photoemission

1998 ◽  
Vol 63 (11) ◽  
pp. 1793-1802 ◽  
Author(s):  
Zdeněk Bastl ◽  
Tomáš Šarapatka
Keyword(s):  
Carbon Monoxide ◽  
Photoelectron Spectroscopy ◽  
Co Adsorption ◽  
Charge Balance ◽  
Adsorption Activity ◽  
Chemical States ◽  
Adsorbed Co ◽  
Pd Clusters ◽  
Almost All ◽  
P Type

X-Ray photoelectron spectroscopy (XPS) has been used to study the adsorption of carbon monoxide on Pd dispersed on oxidized Si(111) surface. A fraction of the deposited Pd diffusing at room temperature to the SiO2/Si interface increases with decreasing SiO2 thickness. For oxide layers thinner than ≈1 nm, almost all deposited Pd diffuses to SiO2/Si interface forming there Si silicide. Consequently, the amount of adsorbed CO is dependent on the thickness of the thermally grown SiO2 layer. Two different chemical states of adsorbed carbon atoms, the population of which depends on the amount of the Pd deposited, are observed in the C (1s) spectra of adsorbed CO. Adsorption activity of Pd clusters does not depend on whether n- or p-type Si is used. Comparison of the experimental Pd/CO concentration ratios with those calculated assuming several different modes of the Pd growth on SiO2/Si points to the pseudo-Stranski-Krastanow mode (flat clusters with incomplete condensation of the first layer) at 300 K. Changes in charge balance across the Pd/SiO2/Si interface caused by CO adsorption are discussed in terms of the surface photovoltage effect and work function variation.

Zn2+ stabilized Pd clusters with enhanced covalent metal–support interaction via the formation of Pd–Zn bonds to promote catalytic thermal stability

Nanoscale ◽  
2020 ◽  
Vol 12 (27) ◽  
pp. 14825-14830
Author(s):  
Kai-Qiang Jing ◽  
Yu-Qing Fu ◽  
Zhi-Qiao Wang ◽  
Zhe-Ning Chen ◽  
Hong-Zi Tan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Adsorption Energy ◽  
Catalytic Performance ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Pd Clusters

Zn2+-Modified MgAl-LDH with ultra-low Pd cluster loading was synthesized. The higher adsorption energy and strong covalent metal–support interaction via forming Pd–Zn bonds over Pd/ZnMgAl-LDH account for the robust catalytic performance.

scholarly journals Impact of the charge transfer process on the Fe2+/Fe3+distribution at Fe3O4 magnetic surface induced by deposited Pd clusters

2021 ◽  
pp. 121879
Author(s):  
Bertrand Sitamtze Youmbi ◽  
Carl-Hugo Pélisson ◽  
Audrey Denicourt-Nowicki ◽  
Alain Roucoux ◽  
Jean-Marc Greneche
Keyword(s):  
Charge Transfer ◽  
Transfer Process ◽  
Magnetic Surface ◽  
Charge Transfer Process ◽  
Pd Clusters

Robust sliding mode guidance and control for soft landing on small bodies

2012 ◽  
Vol 349 (2) ◽  
pp. 493-509 ◽  
Author(s):  
Zhang Zexu ◽  
Wang Weidong ◽  
Li Litao ◽  
Huang Xiangyu ◽  
Cui Hutao ◽  
...  
Keyword(s):  
Sliding Mode ◽  
Soft Landing ◽  
Small Bodies ◽  
Guidance And Control ◽  
And Control
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