scholarly journals Metal-catalyst-free growth of graphene on insulating substrates by ammonia-assisted microwave plasma-enhanced chemical vapor deposition

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33185-33193 ◽  
Author(s):  
Shan Zheng ◽  
Guofang Zhong ◽  
Xingyi Wu ◽  
Lorenzo D'Arsiè ◽  
John Robertson
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Microwave Plasma ◽  
Chemical Vapor ◽  
Metal Catalyst ◽  
Gas Mixture ◽  
Catalyst Free ◽  
Free Growth ◽  
Insulating Substrates

We study the metal-catalyst-free growth of uniform and continuous graphene on different insulating substrates by microwave plasma-enhanced chemical vapor deposition (PECVD) with a gas mixture of C2H2, NH3, and H2 at a temperature of 700–750 °C.

Metal-catalyst-free growth of carbon nanotubes/carbon nanofibers on carbon blacks using chemical vapor deposition

RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40251-40258 ◽  
Author(s):  
Zhi-Yan Zeng ◽  
Jarrn-Horng Lin
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Carbon Black ◽  
Carbon Nanofibers ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Metal Catalyst ◽  
Thermal Chemical Vapor Deposition ◽  
Catalyst Free ◽  
Free Growth

Carbon black can act as catalysts to grow carbon nanotubes or carbon nanofibers through a metal-catalyst-free thermal chemical vapor deposition.

Nanostructured Diamond Coatings for Dry Drilling

2009 ◽  
Author(s):  
Kevin Chou ◽  
Raymond Thompson ◽  
Feng Qin ◽  
Dustin Nolen ◽  
Chao Miao
Keyword(s):  
Chemical Vapor Deposition ◽  
Residual Stresses ◽  
Vapor Deposition ◽  
Performance Enhancement ◽  
Microwave Plasma ◽  
Chemical Vapor ◽  
Gas Mixture ◽  
Diamond Coatings ◽  
Thermal Mismatch ◽  
Dry Drilling

In this study, nanostructured diamond (NSD) films were grown, by microwave plasma assisted chemical vapor deposition (MP-CVD) technology, on WC-Co drills for performance enhancement in dry drilling of A390 alloys. Surface cobalt was removed by a well-controlled precision etching process. H2/CH4 gas mixture with a small amount of N2 was applied to produce NSD films. Moreover, slight hone was applied to the cutting edges prior to the NSD deposition to relieve residual stresses generated by thermal mismatch in depositions. The results show feasibility of dry drilling of A390 alloys by NSD coated drills, substantially outperforming carbide drills.

New Insight into the Metal-Catalyst-Free Direct Chemical Vapor Deposition Growth of Graphene on Silicon Substrates

2021 ◽  
Vol 125 (3) ◽  
pp. 1774-1783
Author(s):  
Afzal Khan ◽  
Mohammad Rezwan Habib ◽  
Cong Jingkun ◽  
Mingsheng Xu ◽  
Deren Yang ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Metal Catalyst ◽  
Silicon Substrates ◽  
Chemical Vapor Deposition Growth ◽  
Catalyst Free ◽  
Insight Into
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