Study on Electrochemical Hydrogen Storage of Multi-Walled Carbon Nanotubes

2007 ◽  
Vol 26-28 ◽  
pp. 831-834 ◽  
Author(s):  
Lei Xie ◽  
Xiao Qi Li
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Storage ◽  
Storage Capacity ◽  
Weight Percent ◽  
Chemical Form ◽  
Hydrogen Storage Capacity ◽  
Electrochemical Hydrogen Storage ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Discharging Capacity

The electrode(Ni-MWNTs) containing nickel(Ni) and multi-walled carbon nanotubes (MWNTs) was prepared by composite electrodeposit. Electrochemical hydrogen storage of the electrode was studied. The result showed a high electrochemical discharging capacity of up to 1361.1mA·h·g-1, which corresponds to a hydrogen storage capacity of 4.77Wt%(weight percent). Test of cyclic lifespan showed MWNTs had certain cyclic lifespan. Cyclic voltammetry tests showed that MWNTs can store hydrogen in chemical form.

Remarkably improved electrochemical hydrogen storage by multi-walled carbon nanotubes decorated with nanoporous bimetallic Fe–Ag/TiO2 nanoparticles

2019 ◽  
Vol 48 (3) ◽  
pp. 898-907 ◽  
Author(s):  
Raziyeh Akbarzadeh ◽  
Mehrorang Ghaedi ◽  
Syamak Nasiri Kokhdan ◽  
Daryoosh Vashaee
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Storage ◽  
Tio2 Nanoparticles ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
Pristine Mwcnts ◽  
Electrochemical Hydrogen Storage ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The hydrogen storage capacity of a (0.04)Fe–Ag/TiO2/CNT electrode is 10.94 wt%, which is nearly 5 times higher than pristine MWCNTs.

Enhancing the hydrogen storage capacity of Pd-functionalized multi-walled carbon nanotubes

2012 ◽  
Vol 258 (8) ◽  
pp. 3405-3409 ◽  
Author(s):  
Priyanka Singh ◽  
Mukta V. Kulkarni ◽  
Suresh P. Gokhale ◽  
Samir H. Chikkali ◽  
Chandrashekhar V. Kulkarni
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Storage ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Investigation of hydrogen storage capacity of multi-walled carbon nanotubes deposited with Pd or V

2009 ◽  
Vol 34 (16) ◽  
pp. 6669-6675 ◽  
Author(s):  
Y. Suttisawat ◽  
P. Rangsunvigit ◽  
B. Kitiyanan ◽  
M. Williams ◽  
P. Ndungu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Storage ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Hydrogen Storage in Single-Walled and Multi-Walled Carbon Nanotubes

1999 ◽  
Vol 593 ◽  
Author(s):  
Seung Mi Lee ◽  
Thomas Frauenheim ◽  
Marcus Elstner ◽  
Yong Gyoo Hwang ◽  
Young Hee Lee
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Storage ◽  
Density Functional Calculations ◽  
Density Functional ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
Adsorption Sites ◽  
Multi Walled Carbon Nanotubes ◽  
Repulsive Forces ◽  
Walled Carbon Nanotubes

ABSTRACTWe performed density-functional calculations to search for adsorption sites and predict maximum hydrogen storage capacity in carbon nanotubes. Our calculations show that the storage capacity of hydrogen, limited by the repulsive forces between H2 molecules inside nanotubes, increases linearly with tube diameters in single-walled nanotubes, whereas this value is independent of tube diameters in multi-walled nanotubes. We predict that H storage capacity in (10,10) nanotubes can exceed 14 wt % (161 kg H2/m3).

COMPUTATION OF INTERACTION POTENTIAL OF ADSORBATES ON ZIGZAG SWCNTs — APPLICATION TO FUNCTIONALIZATION AND HYDROGEN STORAGE

2011 ◽  
Vol 10 (03) ◽  
pp. 391-396 ◽  
Author(s):  
I. LAKSHMI ◽  
D. SILAMBARASAN ◽  
V. J. SURYA ◽  
M. RAJARAJESWARI ◽  
K. IYAKUTTI ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Storage ◽  
Interaction Potential ◽  
Potential Model ◽  
Storage Capacity ◽  
Computation Time ◽  
Single Walled Carbon Nanotubes ◽  
Initial Guess ◽  
Hydrogen Storage Capacity ◽  
Walled Carbon Nanotubes

Nature of the interaction potential of different adsorbates on different zigzag single-walled carbon nanotubes is investigated. The intermolecular potentials for H2 absorbed in carbon nanotubes (5, 0), (6, 0), (7, 0), (8, 0), (9, 0), and (10, 0) are computed and sketched. This study is extended to N2 adsorbed on (4, 0) and BH3 adsorbed on (10, 0) tubes. The equilibrium positions of the adsorbates obtained from the potential model serve as an initial guess in designing the CNT + adsorbate complex in the simulation cell and this process considerably reduces the computation time. Further, the hydrogen storage capacity of CNT(10,0) + BH3 complex is calculated. The estimated storage capacity of this system is in the range 6–12 wt.%.

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