Recent Progress in hydrogen adsorption in single-walled carbon nanotube systems

2003 ◽  
Author(s):  
Masashi Shiraishi
Keyword(s):  
Carbon Nanotube ◽  
Recent Progress ◽  
Hydrogen Adsorption ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon

Hydrogen adsorption on a single-walled carbon nanotube material: a comparative study of three different adsorption techniques

2004 ◽  
Vol 15 (11) ◽  
pp. 1503-1508 ◽  
Author(s):  
A Ansón ◽  
M Benham ◽  
J Jagiello ◽  
M A Callejas ◽  
A M Benito ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Comparative Study ◽  
Hydrogen Adsorption ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon

Simulation of Hydrogen Diffusion and Adsorption on Single-Walled Carbon Nanotube

2012 ◽  
Author(s):  
Y. H. Liu ◽  
B. Tian ◽  
F. Wang ◽  
J. Wei ◽  
K. L. Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Hydrogen Storage ◽  
Fossil Fuels ◽  
Hydrogen Diffusion ◽  
Hydrogen Adsorption ◽  
High Surface ◽  
Volume Ratio ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon

With clean fuels increasingly used for transportation due to environmental concerns and limited supply of fossil fuels, hydrogen is attracting more attention as a clean fuel free from carbon dioxide and other greenhouse gas emissions. Analysis of hydrogen diffusion in single-walled carbon nanotube was performed with molecular dynamic simulation. The carbon nanotube is chosen because of a well-known fact that it is an excellent adsorption material with high surface volume ratio. In this paper, diffusivity rate are simulated to study the interaction of molecular and atomic hydrogen with single-walled carbon nanotubes. The adsorption energy and repulsive energy are analyzed to explore the nanotube structure after desorption and the mechanism of desorption. Electric charge density is also studied in order to understand better the process of hydrogen adsorption in CNT. A background of the hydrogen storage problem with carbon nanotubes is provided and the issues to be resolved have been highlighted. Future directions to address these challenges have also been suggested. We make a case that molecular simulation studies can identify the most promising structures and compositions to maximize hydrogen storage.

Electrochemical Hydrogen Storage in Single-Walled Carbon Nanotube Paper

2006 ◽  
Vol 6 (3) ◽  
pp. 713-718 ◽  
Author(s):  
Z. P. Guo ◽  
S. H. Ng ◽  
J. Z. Wang ◽  
Z. G. Huang ◽  
H. K. Liu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hydrogen Storage ◽  
Hydrogen Adsorption ◽  
Constant Current ◽  
Charge Transfer Reaction ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Electrochemical Hydrogen Storage ◽  
A Charge ◽  
Charge Discharge

Single-walled carbon nanotube (SWNT) papers were successfully prepared by dispersing SWNTs in Triton X-100 solution, then filtered by PVDF membrane (0.22 μm pore size). The electrochemical behavior and the reversible hydrogen storage capacity of single-walled carbon nanotube (SWNT) papers have been investigated in alkaline electrolytic solutions (6 N KOH) by cyclic voltammetry, linear micropolarization, and constant current charge/discharge measurements. The effect of thickness and the addition of carbon black on hydrogen adsorption/desorption were also investigated. It was found that the electrochemical charge–discharge mechanism occurring in SWNT paper electrodes is somewhere between that of carbon nanotubes (physical process) and that of metal hydride electrodes (chemical process), and consists of a charge-transfer reaction (Reduction/Oxidation) and a diffusion step (Diffusion).

INVESTIGATION OF HYDROGEN ADSORPTION ON PLATINUM-DECORATED SINGLE-WALLED CARBON NANOTUBE USING MOLECULAR DYNAMICS SIMULATIONS

2009 ◽  
Vol 08 (04n05) ◽  
pp. 425-432 ◽  
Author(s):  
SEIFOLLAH JALILI ◽  
AREZOU JABERI ◽  
MOHAMMAD GHASEM MAHJANI ◽  
MAJID JAFARIAN
Keyword(s):  
Molecular Dynamics ◽  
Carbon Nanotube ◽  
Adsorption Isotherms ◽  
Hydrogen Adsorption ◽  
Isosteric Heat ◽  
Hydrogen Desorption ◽  
Dynamics Simulation ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Hydrogen Molecules

Hydrogen adsorption isotherms for (8, 0) platinum-decorated single-walled carbon nanotube were studied using molecular dynamics simulation. Adsorption isotherms were obtained for both internal and external surfaces of nanotube at several temperatures from 77 K up to 400 K. The results were compared with the bare nanotube at the same conditions. Adsorption coverage, isosteric heat, binding energy, hydrogen desorption, and readsorption were calculated for both internal and external surfaces of nanotube. At low temperatures, hydrogen molecules were adsorbed significantly, but at higher temperatures, thermal energies reduced this capacity. Under the same conditions, the platinum-decorated single-walled carbon nanotube hydrogen adsorption is significantly higher than the bare one.

Theoretical Study of Hydrogen Adsorption on Ru-Decorated (8,0) Single-Walled Carbon Nanotube

2014 ◽  
Vol 118 (48) ◽  
pp. 27672-27680 ◽  
Author(s):  
Valeria Verdinelli ◽  
Estefanía Germán ◽  
Carla R. Luna ◽  
Jorge M. Marchetti ◽  
María A. Volpe ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Theoretical Study ◽  
Hydrogen Adsorption ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon
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