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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationECS Transactions - Hydrogen Production, Transport, and Storage 2
Pages45-54
Number of pages10
Edition17
DOIs
Publication statusPublished - 2008 Nov 17
EventHydrogen Production, Transport, and Storage 2 - 211th ECS Meeting - Chicago, IL, United States
Duration: 2007 May 62007 May 11

Publication series

NameECS Transactions
Number17
Volume6
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherHydrogen Production, Transport, and Storage 2 - 211th ECS Meeting
CountryUnited States
CityChicago, IL
Period07-05-0607-05-11

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Chang, J. K., Tsai, H. Y., Lin, K. Y., Tsai, W. T., Wang, C. Y., & Yu, M. S. (2008). Nano-sized carbon materials produced during the metal dusting process of stainless steel and their hydrogen storage capability. In ECS Transactions - Hydrogen Production, Transport, and Storage 2 (17 ed., pp. 45-54). (ECS Transactions; Vol. 6, No. 17). https://doi.org/10.1149/1.2832398