Hydrogen Storage in Benzene Moiety Decorated Single-Walled Carbon Nanotubes
ZHANG Bing-Yun1, LIANG Qi-Min2, SONG Chen1, XIA Yue-Yuan1, ZHAO Ming-Wen1, LIU Xiang-Dong1, ZHANG Hong-Yu1
1School of Physics and Microelectronics, Shandong University, Jinan 250100
2Department of Mathematical and Physical Science, Shandong Institute of Light Industry, Jinan 250100
Hydrogen Storage in Benzene Moiety Decorated Single-Walled Carbon Nanotubes
1School of Physics and Microelectronics, Shandong University, Jinan 250100
2Department of Mathematical and Physical Science, Shandong Institute of Light Industry, Jinan 250100
Abstract： The hydrogen storage capacity of (5, 5) single-walled carbon nanotubes (SWNTs) decorated chemically with benzene moieties is studied by using molecular dynamics simulations (MDSs) and density functional theory (DFT) calculations. It is found that benzene molecules colliding on (5, 5) SWNTs at incident energy of 50eV form very stable configurations of benzene moiety adsorption on the wall of SWNTs. The MDSs indicate that when the benzene moiety decorated (5, 5) SWNTs and a pristine (5, 5) SWNT are put in a box in which hydrogen molecules are filled to a pressure of ～26atm, the hydrogen storage capacity of the benzene moiety decorated (5, 5) SWNT is about 4.7wt.% and that of the pristine (5, 5) SWNT is nearly 3.9wt.%.
2006, Vol. 23 
