scholarly journals Are metal-free pristine carbon nanotubes electrocatalytically active?

2015 ◽  
Vol 51 (72) ◽  
pp. 13764-13767 ◽  
Author(s):  
Yi Cheng ◽  
Jin Zhang ◽  
San Ping Jiang
Keyword(s):  
Carbon Nanotubes ◽  
Electrocatalytic Activity ◽  
Free Carbon ◽  
Alkaline Solutions ◽  
Reduction Reactions ◽  
Metal Free

Metal-free carbon nanotubes (CNTs) do show electrocatalytic activity for H2 evolution, O2 evolution and O2 reduction reactions in alkaline solutions, but their activities strongly depend on the number of walls or inner tubes with a maximum for CNTs with 2–3 walls.

Residual metallic impurities within carbon nanotubes play a dominant role in supposedly “metal-free” oxygen reduction reactions

2014 ◽  
Vol 50 (84) ◽  
pp. 12662-12664 ◽  
Author(s):  
Lu Wang ◽  
Martin Pumera
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction ◽  
Dominant Role ◽  
Free Carbon ◽  
Free Oxygen ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Metal Free ◽  
Metallic Impurities

ORR electrocatalysis on the supposedly metal-free carbon nanotubes is in fact due to the presence of residual metallic impurities within.

Potassium hydroxide as a novel catalyst for metal-free carbon nanotubes growth on powder activated carbon

2021 ◽  
pp. 413294
Author(s):  
Belal Abu Tarboush ◽  
Farouq S. Mjalli ◽  
Mohammed Abdulhakim Alsaadi ◽  
Mustafa Mohammed Aljumaily
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Potassium Hydroxide ◽  
Free Carbon ◽  
Metal Free ◽  
Powder Activated Carbon ◽  
Novel Catalyst

Boosting water oxidation on metal-free carbon nanotubes via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte

2018 ◽  
Vol 11 (12) ◽  
pp. 3334-3341 ◽  
Author(s):  
Chunshao Mo ◽  
Junhua Jian ◽  
Jing Li ◽  
Zhengsong Fang ◽  
Zhe Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Water Oxidation ◽  
Free Carbon ◽  
Interfacial Charge Transfer ◽  
Metal Free ◽  
Pure Carbon ◽  
Oxidation Performance ◽  
Interfacial Charge

Directional interfacial charge transfer doping was used to significantly boost the water oxidation performance of pure carbon nanotubes.

scholarly journals Metal-free carbon nanotubes: synthesis, and enhanced intrinsic microwave absorption properties

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Xiaosi Qi ◽  
Jianle Xu ◽  
Qi Hu ◽  
Yu Deng ◽  
Ren Xie ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Microwave Absorption ◽  
Free Carbon ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Metal Free

Evaluation of metal-free carbon nanotubes formed by SiC thermal decomposition

2007 ◽  
Vol 101 (10) ◽  
pp. 104311 ◽  
Author(s):  
Jeremy Harrison ◽  
Senthil N. Sambandam ◽  
John J. Boeckl ◽  
W. C. Mitchel ◽  
W. E. Collins ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Decomposition ◽  
Free Carbon ◽  
Metal Free

Growth of Metal-Free Carbon Nanotubes on Glass Substrate with an Amorphous Carbon Catalyst Layer

2011 ◽  
Vol 11 (12) ◽  
pp. 11032-11036 ◽  
Author(s):  
Jae Keun Seo ◽  
Won Seok Choi ◽  
Hee Dong Kim ◽  
Jae-Hyeoung Lee ◽  
Eun Chang Choi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Amorphous Carbon ◽  
Glass Substrate ◽  
Catalyst Layer ◽  
Free Carbon ◽  
Carbon Catalyst ◽  
Metal Free

Growth of Metal-Free Carbon Nanotubes with an Amorphous Carbon Catalyst Layer

2008 ◽  
Vol 53 (4) ◽  
pp. 2142-2146 ◽  
Author(s):  
Woochang Song ◽  
Dong-Gun Lim ◽  
Hee Dong Kim ◽  
Jae-Hyeoung Lee ◽  
Jaesang Cha ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Amorphous Carbon ◽  
Catalyst Layer ◽  
Free Carbon ◽  
Carbon Catalyst ◽  
Metal Free
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