A structured Co-B catalyst for hydrogen extraction from NaBH4 solution

Jaeyoung Lee, Kyung Yong Kong, Chang Ryul Jung, Eunae Cho, Sung Pil Yoon, Jonghee Han, Tai Gyu Lee, Suk Woo Nam

Research output: Contribution to journalArticlepeer-review

193 Citations (Scopus)

Abstract

A structured Co-B catalyst has been developed to produce hydrogen from an alkaline NaBH4 solution. The catalyst was prepared by chemical reduction of Co precursors coated on a Ni foam support. The effects of catalyst preparation conditions on activity of the catalyst were investigated. The active catalyst was amorphous in structure and contains boron with a Co/B molar ratio of 1.5-2.8. With increasing the heat treatment temperature, the catalyst showed a maximum activity to hydrogen generation at approximately 250 °C. Adhesion of the catalyst to the support was also enhanced by heat treatment at 300-400 °C. The catalysts were successfully applied in both a batch reactor and a flow reactor for continuous generation of hydrogen.

Original languageEnglish
Pages (from-to)305-310
Number of pages6
JournalCatalysis Today
Volume120
Issue number3-4 SPEC. ISS.
DOIs
Publication statusPublished - 2007 Feb 28

Keywords

  • Co-B catalyst
  • Hydrogen generation
  • NaBH
  • Ni foam support
  • Structured catalyst

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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