Nano-sized carbon materials produced during the metal dusting process of stainless steel and their hydrogen storage capability

Jeng-Kuei Chang*, Heng Yi Tsai, Kuan Yu Lin, Wen Ta Tsai, Cheng-Yu Wang, Ming Sheng Yu

*此作品的通信作者

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

The nano-sized carbon materials produced during the metal dusting process of 304L stainless steel were studied in this investigation. In the reaction atmosphere of CO/CO2 (35:1) mixed gas, the nanofibers and multi-wall carbon nano-tubes (MWCNTs) could be obtained at 500 °C and 600 °C, respectively. Hydrogen storage performance of the MWCNTs was evaluated by an electrochemical method; the experimental data indicated that their discharge capacity was 57 mAh/g. Two methods, including heat treatment and acid etching, were used to purify the as-prepared MWCNTs. It was found that the hydrogen storage capacity of the heat-treated and acid-treated MWCNTs was greatly improved to 85 mAh/g and 103 mAh/g, respectively. The considerable capacity increase of the etched MWCNTs was attributed to the elimination of the surface amorphous carbon and the coexisted metal particles.

原文English
主出版物標題ECS Transactions - Hydrogen Production, Transport, and Storage 2
頁面45-54
頁數10
版本17
DOIs
出版狀態Published - 17 11月 2008
事件Hydrogen Production, Transport, and Storage 2 - 211th ECS Meeting - Chicago, IL, United States
持續時間: 6 5月 200711 5月 2007

出版系列

名字ECS Transactions
號碼17
6
ISSN(列印)1938-5862
ISSN(電子)1938-6737

Conference

ConferenceHydrogen Production, Transport, and Storage 2 - 211th ECS Meeting
國家/地區United States
城市Chicago, IL
期間6/05/0711/05/07

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