Evolution of hydrogen from magnesium alloy scraps in citric acid-added seawater without catalyst

Jun Yen Uan, Shih Hao Yu, Meng Chang Lin, Li Fan Chen, Heng I. Lin

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)

Abstract

This work employed a mixture of low-grade Mg scraps (LGMS) and citric acid-added seawater to generate hydrogen gas. Metal catalyst was not required for accelerating the reaction of H2 generation in the Mg scraps/citric acid solution. LGMS in 20 wt% citric acid-added seawater could produce substantially higher H2 volume than the LGMS in 5 wt% citric acid-added seawater. Purity of the generated H2 was about 99% (after dehumidification). By filling H2-production reactor every 30 min with fresh seawater to which citric acid has been added, ∼70 l of hydrogen could be produced in 100 min.

Original languageEnglish
Pages (from-to)6137-6142
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume34
Issue number15
DOIs
Publication statusPublished - Aug 2009
Externally publishedYes

Keywords

  • Citric acid
  • Hydrogen generation
  • Magnesium scraps
  • Re-use

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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