Hydrogen generation from hydrolysis of sodium borohydride using Ni-Ru nanocomposite as catalysts

Cheng Hong Liu, Bing Hung Chen, Chan Li Hsueh, Jie Ren Ku, Ming Shan Jeng, Fanghei Tsau

Research output: Contribution to journalArticlepeer-review

153 Citations (Scopus)

Abstract

Magnetic nickel-ruthenium based catalysts on resin beads for hydrogen generation from alkaline NaBH4 solutions were synthesized with combined methods of chemical reduction and electroless deposition. Factors, such as solution temperature, NaBH4 loadings, and NaOH concentration, on performance of these catalysts on hydrogen production from alkaline NaBH4 solutions were investigated. Furthermore, characteristics of these nickel-ruthenium based catalysts were carried out by using various instruments, such as SEM/EDS, XPS, SQUID VSM and BET. These catalysts can be easily recycled from spent NaBH4 solution with permanent magnets owing to their intrinsic soft ferromagnetism and, therefore, reducing the operation cost of the hydrogen generation process. A rate of hydrogen evolution as high as ca. 400 mL min-1 g-1 could be reached at 35 °C in 10 wt% NaBH4 solution containing 5 wt% NaOH using Ni-Ru/50WX8 catalysts. Activation energy of hydrogen generation using such catalysts is estimated at 52.73 kJ mol-1.

Original languageEnglish
Pages (from-to)2153-2163
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume34
Issue number5
DOIs
Publication statusPublished - 2009 Mar

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Hydrogen generation from hydrolysis of sodium borohydride using Ni-Ru nanocomposite as catalysts'. Together they form a unique fingerprint.

Cite this