Applications of Carbon Nanotubes in Oxygen Electrocatalytic Reactions

2021 ◽  
Author(s):  
Jian Sheng ◽  
Yan Li
Keyword(s):  
Carbon Nanotubes ◽  
Electrocatalytic Reactions

Boosting oxygen electrocatalytic reactions with Mn3O4/self-growth N-doped carbon nanotubes induced by transition metal cobalt

2020 ◽  
Vol 10 (21) ◽  
pp. 7256-7261 ◽  
Author(s):  
Li-Na Lu ◽  
Cheng Chen ◽  
Kang Xiao ◽  
Ting Ouyang ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Transition Metal ◽  
Carbon Nanostructures ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Electrocatalytic Reactions

Oxygen electrocatalytic activities in transition-metal atoms and/or heteroatom-doped carbon nanostructures are strongly dependent on their conductivity and electron configurations.

Structural phenomena in the growth of carbon nanotubes

1993 ◽  
Vol 51 ◽  
pp. 750-751
Author(s):  
Jun Jiao
Keyword(s):  
Carbon Nanotubes ◽  
Growth Mechanism ◽  
Carbonaceous Material ◽  
Cluster Growth ◽  
Structural Elements ◽  
Rich Variety ◽  
Different Shapes ◽  
Point To Point

HREM studies of the carbonaceous material deposited on the cathode of a Huffman-Krätschmer arc reactor have shown a rich variety of multiple-walled nano-clusters of different shapes and forms. The preparation of the samples, as well as the variety of cluster shapes, including triangular, rhombohedral and pentagonal projections, are described elsewhere.The close registry imposed on the nanotubes, focuses attention on the cluster growth mechanism. The strict parallelism in the graphitic separation of the tube walls is maintained through changes of form and size, often leading to 180° turns, and accommodating neighboring clusters and defects. Iijima et. al. have proposed a growth scheme in terms of pentagonal and heptagonal defects and their combinations in a hexagonal graphitic matrix, the first bending the surface inward, and the second outward. We report here HREM observations that support Iijima’s suggestions, and add some new features that refine the interpretation of the growth mechanism. The structural elements of our observations are briefly summarized in the following four micrographs, taken in a Hitachi H-8100 TEM operating at an accelerating voltage of 200 kV and with a point-to-point resolution of 0.20 nm.

Carbon nanotubes: Twist 'n' roll

Nature China ◽  
2007 ◽  
Author(s):  
Rachel Pei Chin Won
Keyword(s):  
Carbon Nanotubes
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