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

C. Cento, P. Gislon, M. Bilgili, A. Masci, Q. Zheng, P.P. Prosini

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The hydrogen storage properties of doped and undoped NaAlH4samples 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. © 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)360 - 366
Number of pages7
JournalJournal of Alloys and Compounds
Issue number1-2
Publication statusPublished - 28 Jun 2007


All Science Journal Classification (ASJC) codes

  • Metals and Alloys

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