Flexible TPS Surface Catalysis Testing in a 30 kW ICP Torch Facility

2012 ◽  
Author(s):  
Walten Owens ◽  
Jason Meyers ◽  
Douglas Fletcher ◽  
Joseph Del Corso ◽  
Anthony Calomino
Keyword(s):  
Surface Catalysis ◽  
Icp Torch

scholarly journals Power Dissipation of an Inductively Coupled Plasma Torch under E Mode Dominated Regime

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 834
Author(s):  
Nan Yu ◽  
Renaud Jourdain ◽  
Mustapha Gourma ◽  
Fangda Xu ◽  
Adam Bennett ◽  
...  
Keyword(s):  
Power Dissipation ◽  
Inductively Coupled Plasma ◽  
Plasma Torch ◽  
Electrical Response ◽  
Inductively Coupled ◽  
De Laval Nozzle ◽  
Surface Fabrication ◽  
Icp Torch ◽  
Frequency Power

This paper focuses on the power dissipation of a plasma torch used for an optical surface fabrication process. The process utilizes an inductively coupled plasma (ICP) torch that is equipped with a De-Laval nozzle for the delivery of a highly collimated plasma jet. The plasma torch makes use of a self-igniting coil and an intermediate co-axial tube made of alumina. The torch has a distinctive thermal and electrical response compared to regular ICP torches. In this study, the results of the power dissipation investigation reveal the true efficiency of the torch and discern its electrical response. By systematically measuring the coolant parameters (temperature change and flow rate), the power dissipation is extrapolated. The radio frequency power supply is set to 800 W, E mode, throughout the research presented in this study. The analytical results of power dissipation, derived from the experiments, show that 15.4% and 33.3% are dissipated by the nozzle and coil coolant channels, respectively. The experiments also enable the determination of the thermal time constant of the plasma torch for the entire range of RF power.

Microkinetic Modeling of Surface Catalysis

2020 ◽  
pp. 1377-1404
Author(s):  
Gerhard R. Wittreich ◽  
Konstantinos Alexopoulos ◽  
Dionisios G. Vlachos
Keyword(s):  
Microkinetic Modeling ◽  
Surface Catalysis

Nonlinear compressible magnetohydrodynamic flows modeling of a process ICP torch

2012 ◽  
Vol 58 (1) ◽  
pp. 10804 ◽  
Author(s):  
N. Ikhlef ◽  
T. Hacib ◽  
O. Leroy ◽  
M.R. Mékiddèche
Keyword(s):  
Magnetohydrodynamic Flows ◽  
Icp Torch

scholarly journals Growth mechanism of graphene on platinum: Surface catalysis and carbon segregation

2014 ◽  
Vol 104 (15) ◽  
pp. 152107 ◽  
Author(s):  
Jie Sun ◽  
Youngwoo Nam ◽  
Niclas Lindvall ◽  
Matthew T. Cole ◽  
Kenneth B. K. Teo ◽  
...  
Keyword(s):  
Growth Mechanism ◽  
Platinum Surface ◽  
Carbon Segregation ◽  
Surface Catalysis

scholarly journals Photocurrent of BiVO4 is limited by surface recombination, not surface catalysis

2017 ◽  
Vol 8 (5) ◽  
pp. 3712-3719 ◽  
Author(s):  
Carolin Zachäus ◽  
Fatwa F. Abdi ◽  
Laurence M. Peter ◽  
Roel van de Krol
Keyword(s):  
Surface Recombination ◽  
Main Role ◽  
Surface Catalysis ◽  
Cobalt Phosphate

The main role of a cobalt phosphate catalyst on BiVO4 is to improve the photocurrent by passivating the surface and suppressing recombination.

Deuterium fractionation in the presolar nebula: Kinetic limitations on surface catalysis

Icarus ◽  
1987 ◽  
Vol 72 (2) ◽  
pp. 430-436 ◽  
Author(s):  
David H. Grinspoon ◽  
John S. Lewis
Keyword(s):  
Surface Catalysis

scholarly journals Shining light on the solid–liquid interface: in situ/operando monitoring of surface catalysis

2020 ◽  
Vol 10 (16) ◽  
pp. 5362-5385
Author(s):  
Leila Negahdar ◽  
Christopher M. A. Parlett ◽  
Mark A. Isaacs ◽  
Andrew M. Beale ◽  
Karen Wilson ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Solid Catalyst ◽  
Chemical Transformations ◽  
Liquid Interfaces ◽  
Surface Catalysis ◽  
Catalytically Active ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Insight Into

Many industrially important chemical transformations occur at the interface between a solid catalyst and liquid reactants. In situ and operando spectroscopies offer unique insight into the reactivity of such catalytically active solid–liquid interfaces.

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