Manufacturing Technology 2015, 15(2):166-170 | DOI: 10.21062/ujep/x.2015/a/1213-2489/MT/15/2/166
Improving the Hydrogen Release Capacity of NaBH4 via Mediation of Catalysts with Rare Metal Compounds
- 1 Dept. of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, Henan, 450045 China
- 2 Chang'an University, Xi'an, Shanxi 710061, China
This paper reports on doping with the catalysts consist of rare metal compounds like Co2B, La(NO3)3, Ce(SO4)2, Ti(SO4)2, CeCl3, LaCl3 and mixed catalysts for improving hydrogen release capacity of NaBH4. The results show that the hydrogen generation volume (HGV) is about 10ml and the hydrogen generation rate (HGR) is very low when doping with La(NO3)3, Ce(SO4)2, Ti(SO4)2, CeCl3 and LaCl3. Comparatively, Co2B presents favorable catalytic effect on hydrogen generation properties of NaBH4. The study on the mixed catalysts find that the HGV of the samples doped with mixed catalyst of Co2B and Ce(SO4)2 is the largest. Among all doped samples, the HGV of sample doped with 5Co2B\2Ce(SO4)2 is the largest about 317ml. Compared to all samples doped with mixed catalysts, the samples doped with mixed catalysts of Co2B, Ce(SO4)2, Ti(SO4)2 and CeCl3 presents the best properties of hydrogen release. However, compared to Co2B, doping with other catalysts makes the hydrogen release time of NaBH4 longer. Overall, NaBH4 doped with the mixed catalysts of Co2B, Ti(SO4)2 and CeCl3 present the optimal HGV and HGR than doped with any other catalysts.
Keywords: Hydrogen Release Capacity, Rare Metal Compounds, Mixed Catalysts, Catalytic Effect
Published: April 1, 2015 Show citation
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