期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 35, 期 14, 页码 7547-7554出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.04.169
关键词
Hydrogen uptake; Porous carbon; Potassium hydroxide activation; High surface area
资金
- Chinese National Science Foundation [U0734002]
- Shanghai Nanotechnology Promotion Center [0852nm0500]
- Shanghai Basic Key Program [09JC1415100]
A porous carbon material with specific surface area of 894 m(2)/g and pore volume of 0.47 cm(3)/g has been easily synthesized by pyrolysis of a gel containing nickel chloride. Transmission electron microscopy reveals a texture of evenly spreading spherical mesapores and well dispersed micropores. Potassium hydroxide treatment results in a surface area and pore volume of the pristine materials of up to 2930 m(2)/g and 1.52 cm(3)/g, respectively. Cryogenic hydrogen uptake capacities were measured and the highest capacity of 6.24 wt% was obtained at 77 K under 2 MPa. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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