Paper Title:
Role of Crystallitic Carbon in the Preparation of Mg-Based Hydrogen Storage Materials by Reactive Milling
  Abstract

Magnesium-based hydrogen storage powders were prepared by reactive milling under hydrogen atmosphere. The crystallitic carbon, prepared from anthracite coal by demineralization and carbonization, was used as milling aid and synergic hydrogen storage additive of magnesium. Dispersive powders of particle size about 20 to 60 nm and hydrogen capacity of 4.78 wt.% were prepared from magnesium with 40 wt.% of crystallitic carbon by 3 h of milling under 1 MPa of hydrogen atmosphere. The hydrogen stored in carbon increased with the addition of Al, Mo, Co and Fe. FT-IR showed that the carbon atoms at the edges of crystallitic carbon particles were hydrogenated into C-H during reactive milling with hydrogen. The initial dehydrogenation temperature of hydrogen-storage material 60Mg40C is 275.8 °C, and its dehydrogenation plateau pressure at 300 °C is 0.2 MPa and the length of the plateau is 5.0 wt.% of hydrogen capacity.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
69-72
DOI
10.4028/www.scientific.net/AMR.239-242.69
Citation
S. X. Zhou, H. L. Niu, H. P. Chen, S. S. Lu, C. E. Zhang, L. Y. Feng, Q. Q. Zhang, "Role of Crystallitic Carbon in the Preparation of Mg-Based Hydrogen Storage Materials by Reactive Milling", Advanced Materials Research, Vols. 239-242, pp. 69-72, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Beom Seob Kim, Young Chul Woo, Deug Joong Kim
Abstract:Synthesis of nano TiC powder by carbothermal reduction procedure of TiO2 was investigated. TiO2 was mixed with resin or carbon powder as...
141
Authors: Ho Suk Ryu, Sang Won Lee, Ki Won Kim, Joo Hyun Ahn, Kwon Koo Cho, Gyu Bong Cho, Hyo Jun Ahn
Abstract:We investigated on the additive effect of carbon nanotube in the sulfur electrode on the first discharge curve and cycling property of...
1509
Authors: Urszula Narkiewicz, Marcin Podsiadły, Iwona Pełech, Waleran Arabczyk, M.J. Woźniak, Krzysztof J. Kurzydłowski
Abstract:Nanocrystalline cobalt was carburised with ethylene in the range 340– 500°C to obtain Co(C) nanocapsules. The carbon deposit was reduced by...
249
Authors: Bao Min Sun, Yuan Chao Liu, Zhao Yong Ding
Abstract:Carbon nanotube is a new kind of carbon material. Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of novel technique. It...
104
Authors: Qian Zhang, Li Feng Dong
Chapter 9: Nano Materials
Abstract:A series of techniques, including field emission scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction,...
1364