How carbon affects hydrogen desorption in NaAlH4 and Ti-doped NaAlH4

被引：48

作者：

Cento, C. ^{[1
]}

Gislon, P. ^{[1
]}

Bilgili, M. ^{[1
]}

Masci, A. ^{[1
]}

Zheng, Q. ^{[1
]}

Prosini, P. P. ^{[1
]}

机构：

[1] ENEA, CR Casaccia, I-00060 Rome, Italy

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 437卷 / 1-2期

关键词：

metal hydrides; hydrogen storage materials;

D O I：

10.1016/j.jallcom.2006.09.025

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：

The hydrogen storage properties of doped and undoped NaAlH4 samples are studied after mixing them with different percentages of high surface carbon. Manually mixed samples are compared with ball milled ones; it was found that manual mixing was a simple and effective way to dope NaAlH4. A morphological and micro-structural analysis has been carried out in order to understand the effect of carbon. Carbon added samples show a marked enhancement of hydrogen desorption rate. The desorption temperature and the total hydrogen content remain almost unchanged for undoped sample. The desorption temperatures of Ti-doped samples increase with carbon content. (C) 2006 Elsevier B.V. All rights reserved.

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收藏

页码：360 / 366

页数：7

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