A study on hydrogen generation from NaBH4 solution using the high-performance Co-B catalyst

S. U. Jeong, R. K. Kim, E. A. Cho, H. J. Kim, SukWoo Nam, I. H. Oh, S. A. Hong, Sung Hyun Kim

Research output: Contribution to journalArticle

279 Citations (Scopus)

Abstract

For hydrogen generation from an aqueous alkaline NaBH4 solution, Co-B catalyst was prepared by the chemical reduction method using NaBH 4 as a reduction chemical. To design a hydrogen generator, hydrogen generation rate was measured using the Co-B catalyst as a function of solution temperature, amount of catalyst loading, NaBH4 concentration, and NaOH (a base-stabilizer) concentration. Activation energy for the hydrogen generation reaction was measured to be 64.87 kJ mol-1. Compared to Ru catalysts previously used, the low-cost Co-B catalyst exhibited comparable activity for the hydrogen generation reaction. Using the hydrogen generation system employing the Co-B catalyst, a 2 W polymer electrolyte membrane fuel cell (PEMFC) stack was operated and successfully powered a cellular phone.

Original languageEnglish
Pages (from-to)129-134
Number of pages6
JournalJournal of Power Sources
Volume144
Issue number1
DOIs
Publication statusPublished - 2005 Jun 1

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Hydrogen
catalysts
Catalysts
hydrogen
Proton exchange membrane fuel cells (PEMFC)
fuel cells
generators
Activation energy
electrolytes
activation energy
membranes
polymers
Costs
Temperature
temperature

Keywords

  • Co-B catalyst
  • Hydrogen generation
  • NaBH
  • Polymer electrolyte membrane fuel cell

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry
  • Energy (miscellaneous)

Cite this

A study on hydrogen generation from NaBH4 solution using the high-performance Co-B catalyst. / Jeong, S. U.; Kim, R. K.; Cho, E. A.; Kim, H. J.; Nam, SukWoo; Oh, I. H.; Hong, S. A.; Kim, Sung Hyun.

In: Journal of Power Sources, Vol. 144, No. 1, 01.06.2005, p. 129-134.

Research output: Contribution to journalArticle

Jeong, S. U. ; Kim, R. K. ; Cho, E. A. ; Kim, H. J. ; Nam, SukWoo ; Oh, I. H. ; Hong, S. A. ; Kim, Sung Hyun. / A study on hydrogen generation from NaBH4 solution using the high-performance Co-B catalyst. In: Journal of Power Sources. 2005 ; Vol. 144, No. 1. pp. 129-134.
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AU - Hong, S. A.

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