Formation of Catalytically Active Nanoparticles Under Thermolysis of Silver Chloroplatinate(II) and Chloroplatinate(IV)

2021 ◽  
Author(s):  
Evgeny Filatov ◽  
Pavel Smirnov ◽  
Dmitry Potemkin ◽  
Denis Pishchur ◽  
Natalia A. Kryuchkova ◽  
...  
Keyword(s):  
Catalytically Active ◽  
Active Nanoparticles

Catalytically active nanoparticles stabilized by host–guest inclusion complexes in water

2009 ◽  
pp. 1228 ◽  
Author(s):  
Claudie Hubert ◽  
Audrey Denicourt-Nowicki ◽  
Alain Roucoux ◽  
David Landy ◽  
Bastien Leger ◽  
...  
Keyword(s):  
Inclusion Complexes ◽  
Catalytically Active ◽  
Active Nanoparticles

scholarly journals Regrowth of Carbon Nanotubes Array on Al Layer Coated Substrate

2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Chien-Chao Chiu ◽  
Masamichi Yoshimura ◽  
Kazuyuki Ueda ◽  
Yuya Kamizono ◽  
Hisanori Shinohara ◽  
...  
Keyword(s):  
Vapor Deposition ◽  
Chemical Vapor ◽  
Growth Cycles ◽  
Thermal Chemical Vapor Deposition ◽  
Coated Substrate ◽  
Al Nanoparticles ◽  
Catalytically Active ◽  
Growth Method ◽  
Active Nanoparticles ◽  
Cnt Arrays

Carbon nanotube (CNT) arrays have been synthesized by a repeated growth method using a custom-fabricated plasma-enhanced thermal chemical vapor deposition (PE-thermal CVD) apparatus. The initial catalyst is a layered structure prepared by depositing 10 nm of Al followed by 3 nm of Fe on an oxidized silicon substrate. Following CNT growth, the CNT arrays are removed using an ultrasonic cleaner, and another CNT array is grown on the remaining Fe-Al bimetalic nanoparticles without the addition of more catalyst. Annealing the catalytic substrate in air between growth cycles results in the removal of residual amorphous carbon along with the CNTs, and oxidation of the Fe-Al nanoparticles. The diameter of CNTs is reduced with repeated growth-annealing cycles, an effect of which is attributed to the diminishing size of the catalytically active nanoparticles with each cycle. After two growth cycles, SWNTs with the extraordinarily narrow diameter of 0.86 nm are synthesized. TheID/IGratio derived from the Raman spectrum of these of the SWNT arrays shows the remarkably low value of 0.22.

Hyperbranched polyamidoamine as stabilizer for catalytically active nanoparticles in water

2008 ◽  
Vol 326 (1) ◽  
pp. 51-54 ◽  
Author(s):  
Jean-Daniel Marty ◽  
Elsa Martinez-Aripe ◽  
Anne-Françoise Mingotaud ◽  
Christophe Mingotaud
Keyword(s):  
Catalytically Active ◽  
Active Nanoparticles

Size-Dependent Phase Transformation of Catalytically Active Nanoparticles Captured In Situ

2014 ◽  
Vol 53 (5) ◽  
pp. 1342-1345 ◽  
Author(s):  
Nico Fischer ◽  
Brett Clapham ◽  
Theresa Feltes ◽  
Eric van Steen ◽  
Michael Claeys
Keyword(s):  
Phase Transformation ◽  
Size Dependent ◽  
Catalytically Active ◽  
Active Nanoparticles
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