Synthesis and structure of pristine and alkali-metal-intercalated single-walled carbon nanotubes

1998 ◽  
Vol 67 (1) ◽  
pp. 47-52 ◽  
Author(s):  
C. Bower ◽  
S. Suzuki ◽  
K. Tanigaki ◽  
O. Zhou
Keyword(s):  
Carbon Nanotubes ◽  
Alkali Metal ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

The enhanced field emission properties of K and Rb doped (5,5) capped single-walled carbon nanotubes

RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 16718-16722 ◽  
Author(s):  
Yue Wang ◽  
Xin-Hua Yao ◽  
Gang Huang ◽  
Qing-Yi Shao
Keyword(s):  
Carbon Nanotubes ◽  
Alkali Metal ◽  
Field Emission ◽  
First Principles ◽  
Single Walled Carbon Nanotubes ◽  
Emission Properties ◽  
Single Walled Carbon ◽  
Field Emission Properties ◽  
Walled Carbon Nanotubes

The field emission properties of alkali metal K and Rb (AM) doped (5,5) capped single-walled carbon nanotubes (CNTs) have been investigated using first-principles theory.

Manipulation of Separation Selectivity for Alkali Metals Using Capped Single-Walled Carbon Nanotubes: A Theoretical Study

2014 ◽  
Vol 687-691 ◽  
pp. 4307-4310
Author(s):  
Shun Fu Xu
Keyword(s):  
Carbon Nanotubes ◽  
Alkali Metal ◽  
Adsorption Energy ◽  
Density Functional ◽  
Alkali Metals ◽  
Single Walled Carbon Nanotubes ◽  
Generalized Gradient ◽  
Single Walled Carbon ◽  
Separation Selectivity ◽  
Walled Carbon Nanotubes

Alkali metal (Cs/Li/Na) adsorption on (5, 5) and (9, 0) single-walled carbon nanotubes (CNTs) with a capped edge had been investigated by first-principles calculations. Our calculations are performed within density functional theory (DFT) under the generalized gradient approximation (GGA) of Perdew, Burke, and Ernzerhof (PBE).For the indefective (5, 5)/(9, 0) CNT, adsorption energy ordering of the alkali-metal adatoms is Cs>Li>Na so that the Cs adsorption was energetically favored with respect to the Li/Na adatom. However, the adsorption energy ordering of the alkali-metal adatoms for the defective (5, 5) CNT was Li>Cs>Na. Therefore, separation selectivity for alkali metals could be actualized using the capped single-walled carbon nanotubes. The (5, 5)/(9, 0) P-CNT adsorbed Cs atoms preferentially, while the (5, 5)/(9, 0) defective CNT (D-CNT) adsorbed Li atoms advantageously.

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