An Approximate Method for Solving Unsteady Transitional and Rarefied Flow Regimes in Pulsed Pressure Chemical Vapor Deposition Process using the Quiet Direct Simulation Method

2011 ◽  
Author(s):  
Chin Wai Lim ◽  
Hadley M. Cave ◽  
Mark C. Jermy ◽  
Susan P. Krumdieck ◽  
Jong-Shinn Wu
Keyword(s):  
Chemical Vapor Deposition ◽  
Approximate Method ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Flow Regimes ◽  
Simulation Method ◽  
Deposition Process ◽  
Direct Simulation ◽  
Rarefied Flow ◽  
Pressure Chemical

Optimization of Chemical Vapor Deposition Process for Carbon Nanotubes Growth on Stainless Steel: Towards Efficient Hydrogen Evolution Reaction

MRS Advances ◽  
2020 ◽  
Vol 5 (8-9) ◽  
pp. 363-368
Author(s):  
Haojie Zhang ◽  
Juliana Martins de Souza e Silva ◽  
Cristine Santos de Oliveira ◽  
Xubin Lu ◽  
Stefan L. Schweizer ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Stainless Steel ◽  
Chemical Vapor Deposition ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Deposition Process ◽  
Pressure Chemical ◽  
Novel Strategy

ABSTRACTWe report a novel strategy to render stainless steel (SS) a more versatile material that is suitable to be used as the substrate for preparing electrodes for efficient hydrogen evolution by interface engineering. Our strategy involves the growth of carbon nanotubes (CNTs) by atmospheric pressure chemical vapor deposition (APCVD) as the interface material on the surface of SS. We optimized the procedure to prepare CNTs/SS and demonstrate a higher activity of the CNTs/SS prepared at 700 °C for the hydrogen evolution reaction (HER) when compared to samples prepared at other temperatures. This can be attributed to the higher number of defects and the higher content of pyrrolic N obtained at this temperature. Our strategy offers a new approach to employ SS as a substrate for the preparation of highly efficient electrodes and has the potential to be widely used in electrochemistry.

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