Ball-milled carbon and hydrogen storage

被引：49

作者：

Awasthi, K

Kamalakaran, R

Singh, AK

Srivastava, ON ^{[1
]}

机构：

[1] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

[2] GE India Technol Ctr, Bangalore 560060, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2002年 / 27卷 / 04期

关键词：

ball-milled carbon; ball-milling; XRD; SEM; TEM; hydrogen adsorption;

D O I：

10.1016/S0360-3199(01)00134-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the formation of carbon in different nanoparticle forms obtained by ball-milling of graphitic carbon. Ball-milling of graphite was carried out in Szegvari attritor at room temperature for varied times i.e. 24, 48 and 100 h in hexane medium. The characterization of ball-milled graphitic carbon (BMC) samples was done by X-ray diffractometry, scanning electron microscopy and transmission electron microscopy, The self-coagulated carbon agglomerates were obtained for the case of 24 and 100 h BMC samples. The fort-nation of coiled nanotubes and nanofibres was observed in the BMC sample. The BMC samples with and without nickel (Ni) catalyst were subjected to hydrogenation cycling in a Sievert's type apparatus fabricated in our laboratory. It has been found that BMC sample can adsorb hydrogen. The hydrogen adsorption capacity has been found to be similar to 0.6 wt%. (C) 2002 International Association for Hydrogen Energy. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：425 / 432

页数：8

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