scholarly journals Hydrogenation of HOPG-supported Gold Nanoparticles: Features of Initial Stages

Crystals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 350
Author(s):  
Andrey K. Gatin ◽  
Maxim V. Grishin ◽  
Nadezhda V. Dokhlikova ◽  
Sergey Yu. Sarvadii ◽  
Boris R. Shub
Keyword(s):  
Experimental Data ◽  
Gold Nanoparticles ◽  
Simple Model ◽  
Quantum Chemical ◽  
Room Temperature ◽  
Pyrolytic Graphite ◽  
Highly Oriented Pyrolytic Graphite ◽  
Entire Surface ◽  
Supported Gold Nanoparticles ◽  
Supported Gold

The features of deuterium adsorption on the surface of gold nanoparticles deposited on highly oriented pyrolytic graphite (HOPG) were determined. The results showed that deuterium adsorption on gold nanoparticles takes place at room temperature. The results also showed that the filling of the nanoparticles’ surfaces with the adsorbate occurs from the graphite–gold interface until the entire surface is covered by deuterium. The results of quantum chemical simulations are used to explain the experimental data. A simple model of the observed effects is proposed.

ChemInform Abstract: Room-Temperature Deoxygenation of Epoxides with CO Catalyzed by Hydrotalcite-Supported Gold Nanoparticles in Water.

ChemInform ◽  
2011 ◽  
Vol 42 (7) ◽  
pp. no-no
Author(s):  
Takato Mitsudome ◽  
Akifumi Noujima ◽  
Yusuke Mikami ◽  
Tomoo Mizugaki ◽  
Koichiro Jitsukawa ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Room Temperature ◽  
Supported Gold Nanoparticles ◽  
Supported Gold

scholarly journals Hydrogenation of HOPG-Supported Gold Nanoparticles: Surface or Volume?

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 597
Author(s):  
Sergey Yu. Sarvadii ◽  
Andrey K. Gatin ◽  
Nadezhda V. Dokhlikova ◽  
Vasiliy A. Kharitonov ◽  
Sergey A. Ozerin ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Energy Barrier ◽  
Pyrolytic Graphite ◽  
Scanning Tunneling ◽  
Quantum Chemical Simulation ◽  
Tunneling Microscopy ◽  
Chemical Simulation ◽  
Supported Gold Nanoparticles ◽  
Supported Gold ◽  
Hydrogen Dissolution

The hydrogenation features of gold nanoparticles deposited on highly oriented pyrolytic graphite were determined, and composite nanostructures consisting of pure and hydrogenized gold were synthesized. Methods of scanning tunneling microscopy and spectroscopy have been successfully used to probe the bottom of the conductive band and to determine the shape of the electron energy barrier in hydrogenized gold. Considering models of surface and volume hydrogenation, we have shown that no hydrogen dissolution occurred in gold nanoparticles, but all changes in their electronic structure were associated with surface processes. The results of the quantum chemical simulation also corresponded with this conclusion.

Room‐Temperature Deoxygenation of Epoxides with CO Catalyzed by Hydrotalcite‐Supported Gold Nanoparticles in Water

2010 ◽  
Vol 16 (39) ◽  
pp. 11818-11821 ◽  
Author(s):  
Takato Mitsudome ◽  
Akifumi Noujima ◽  
Yusuke Mikami ◽  
Tomoo Mizugaki ◽  
Koichiro Jitsukawa ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Room Temperature ◽  
Supported Gold Nanoparticles ◽  
Supported Gold

Role of Hydroxyl Groups in Low-Temperature CO Catalytic Oxidation over Zn4Si2O7(OH)2 Nanowire-Supported Gold Nanoparticles

2018 ◽  
Vol 122 (44) ◽  
pp. 25456-25466 ◽  
Author(s):  
Jing-Jing Li ◽  
Bao-Lin Zhu ◽  
Gui-Chang Wang ◽  
Zun-Feng Liu ◽  
Wei-Ping Huang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Low Temperature ◽  
Catalytic Oxidation ◽  
Hydroxyl Groups ◽  
Co Catalytic Oxidation ◽  
Supported Gold Nanoparticles ◽  
Supported Gold
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