Kinetic trapping through coalescence and the formation of patterned Ag–Cu nanoparticles

Nanoscale ◽  
2016 ◽  
Vol 8 (18) ◽  
pp. 9780-9790 ◽  
Author(s):  
Panagiotis Grammatikopoulos ◽  
Joseph Kioseoglou ◽  
Antony Galea ◽  
Jerome Vernieres ◽  
Maria Benelmekki ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Gas Phase ◽  
Metallic Nanoparticles ◽  
Inert Gas ◽  
Cu Nanoparticles ◽  
Gas Cooling ◽  
Kinetic Trapping

In recent years, due to its inherent flexibility, magnetron-sputtering has been widely used to synthesise bi-metallic nanoparticles (NPs) via subsequent inert-gas cooling and gas-phase condensation of the sputtered atomic vapour.

scholarly journals Supported Cu Nanoparticles as Selective and Stable Catalysts for the Gas Phase Hydrogenation of 1,3-Butadiene in Alkene-Rich Feeds

2020 ◽  
Author(s):  
Giorgio Totarella ◽  
Rolf Beerthuis ◽  
Nazila Masoud ◽  
Catherine Louis ◽  
Laurent Delannoy ◽  
...  
Keyword(s):  
Gas Phase ◽  
Cu Nanoparticles

scholarly journals Tuning the coalescence degree in the growth of Pt-Pd nanoalloys

2020 ◽  
Author(s):  
Diana Nelli ◽  
Manuella Cerbelaud ◽  
Riccardo Ferrando ◽  
Chloé Minnai
Keyword(s):  
Magnetron Sputtering ◽  
Gas Phase

Coalescence is a phenomenon in which two or more nanoparticles merge to form a single larger aggregate. By means of gas-phase magnetron-sputtering aggregation experiments on Pt-Pd nanoalloys, it is shown...

Gas-phase clusterization of zinc during magnetron sputtering

2017 ◽  
Vol 62 (1) ◽  
pp. 133-138 ◽  
Author(s):  
A. Kh. Abduev ◽  
A. K. Akhmedov ◽  
A. Sh. Asvarov ◽  
N. M. -R. Alikhanov ◽  
R. M. Emirov ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Gas Phase

From Solution to the Gas Phase: Factors That Influence Kinetic Trapping of Substance P in the Gas Phase

2014 ◽  
Vol 118 (49) ◽  
pp. 14336-14344 ◽  
Author(s):  
Kyle L. Fort ◽  
Joshua A. Silveira ◽  
Nicholas A. Pierson ◽  
Kelly A. Servage ◽  
David E. Clemmer ◽  
...  
Keyword(s):  
Substance P ◽  
Gas Phase ◽  
Kinetic Trapping

Formation Mechanism of Fe Nanocubes by Magnetron Sputtering Inert Gas Condensation

ACS Nano ◽  
2016 ◽  
Vol 10 (4) ◽  
pp. 4684-4694 ◽  
Author(s):  
Junlei Zhao ◽  
Ekaterina Baibuz ◽  
Jerome Vernieres ◽  
Panagiotis Grammatikopoulos ◽  
Ville Jansson ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Formation Mechanism ◽  
Inert Gas ◽  
Gas Condensation ◽  
Inert Gas Condensation

ULTRAFINE CONTROL OF Cu NANOPARTICLES AND THEIR ANTIBIOTIC EFFECT ON E. coli

2019 ◽  
Vol 26 (07) ◽  
pp. 1850214
Author(s):  
QINGBIN WANG ◽  
LIANGYUAN SHI ◽  
YUN YANG ◽  
HUI HUANG ◽  
YI JIE ◽  
...  
Keyword(s):  
Metallic Nanoparticles ◽  
Size Control ◽  
Cu Nanoparticles ◽  
Electron Microscopic ◽  
Tem Analysis ◽  
Cluster Technique ◽  
E Coli ◽  
Transmission Electron ◽  
Antibiotic Effect ◽  
Potential Applications

Metallic nanoparticles have attracted intense interest for the potential applications in biocompatibility due to the reduced particle size. However, the methods to produce metallic nanoparticles usually produce an inhomogeneous size distribution. In this work, Cu nanoparticles were generated using a gas-aggregation cluster source technique, employing a specially designed quadrupole mass filter to control the size of the nanoparticles with a mass resolution (m/[Formula: see text]m) of 5. Transmission electron microscopic (TEM) analysis was used to confirm the size control of our technique. The generally high angular electronic scattering analysis revealed the spherical shapes of the Cu nanoparticles. We used beams of these nanoparticles to prepare nano-granular films on a Si substrate. Their antibacterial effect of the modified materials on Escherichia coli was assessed by means of a bacterial adhesion test. Our results may not only reveal the cluster technique to produce the uniform metallic nanoparticles, but also form the basis of antibacterial applications.

Subcutaneous tissue gas space pressure during superficial isobaric counterdiffusion

1979 ◽  
Vol 47 (1) ◽  
pp. 224-227 ◽  
Author(s):  
J. R. Cowley ◽  
C. Allegra ◽  
C. J. Lambertsen
Keyword(s):  
Gas Phase ◽  
Subcutaneous Tissue ◽  
Inert Gas ◽  
Maximum Pressure ◽  
Tissue Pressure ◽  
Phase Development ◽  
New Zealand White Rabbits ◽  
Gas Space ◽  
Pressure Changes ◽  
Mean Time

Changes in subcutaneous tissue pressure caused by N2O-He, 1-ATA isobaric counterdiffusion gas phase development were measured. Only the ears of New Zealand White rabbits were subjected to counterdiffusion. The rabbits breathed a mixture of 80% N2O-20% O2 while their ears alone were surrounded by He and the rest of their bodies continued to be surrounded by air. Subcutaneous pressure changes were transmitted to the transducer-recorded system via a fluid-filled subcutaneous needle. When the gas phase developed in subcutaneous tissue, pressure rose and a maximum pressure (Pmax) was reached. Pmax in the counterdiffused ear was 48 +/- 10 (SD) Torr, and mean time to reach Pmax was 75 +/- 10 (SD) min. The findings are discussed in relation to the pathological processes of isobaric inert gas counterdiffusion.

Einfluß der Strömungsform des Gases auf die chemischen Transportprozesse in Halogenglühlampen

1974 ◽  
Vol 29 (10) ◽  
pp. 1471-1477
Author(s):  
Gerhard M. Neumann
Keyword(s):  
High Pressure ◽  
Laminar Flow ◽  
Gas Phase ◽  
Flow Separation ◽  
Gas Flow ◽  
Chemical Transport ◽  
Transport Processes ◽  
Inert Gas ◽  
Good Accord ◽  
Incandescent Lamps

Abstract By raising the inert gas pressure and thus changing the type of gas flow chemical transport processes in tubular halogen incandescent lamps may be influenced. At medium pressures in the region of laminar flow separation of halogen and inert gas due to thermodiffusion occurs, the halogen cycle breaks down, and bulb blackening of the lamp is observed. At low and high pressure, where the streaming behaviour of the gas phase is dominated by diffusion or turbulence, separation of halogen and inert gas is overcome and the lamps stay clean. Observed pressures for changing from laminar to turbulent flow are 3.5 atm in xenon, 5.5 atm in krypton, and > 8 atm in argon in good accord with the well-known Reynolds' criterion.

Synthesis of Cu nanoparticles by condensation from the gas phase

2016 ◽  
Vol 90 (6) ◽  
pp. 590-597 ◽  
Author(s):  
I. V. Chepkasov ◽  
Yu.Ya. Gafner ◽  
S. L. Gafner
Keyword(s):  
Gas Phase ◽  
Cu Nanoparticles
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