General Information
    • ISSN: 2010-0221 (Print)
    • Abbreviated Title: Int. J. Chem. Eng. Appl.
    • Frequency: Biannually
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
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Editor-in-chief
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan
 

IJCEA 2015 Vol.6(3): 146-151 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2015.V6.470

Rapid Hydrogen Generation from Aluminum-Water System Using Synthesized Aluminum Hydroxide Catalyst

Hong-Wen Wang and Ming-Ssu Chin

Abstract—Catalytic effect of Al(OH)3 on the hydrogen generation from Al/water system is evaluated. The Al(OH)3 powders are synthesized from various molar ratios of Al(NO3)3 : NaOH = 1:3 ~ 1:5. It was found that the Al(OH)3 catalyst derived from the ratio Al(NO3)3 : NaOH = 1:3.5~1:4 in an ice bath exhibits the best catalytic effect and exerts the highest hydrogen generation rate. Over 95% yield of hydrogen from a 3 g Al/50 ml water system (with 15 g Al(OH)3 and pH=12) can be generated within 100 s. That is, by using specially synthesized Al(OH)3 catalyst at a Al:Al(OH)3:H2O=3:15:50 weight ratio, very rapid hydrogen generation rate (~667 ml/g·Al·min), without using any alloying elements or extreme corrosive condition, can be realized.

Index Terms—Aluminum hydroxide, aluminum nitrate, hydrogen generation.

The authors are with the Department of Chemistry, Chung-Yuan Christian University, Chung-Li, 320, Taiwan, R.O.C. (corresponding author: H. W. Wang; e-mail: hongwen@cycu.edu.tw).

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Cite: Hong-Wen Wang and Ming-Ssu Chin, "Rapid Hydrogen Generation from Aluminum-Water System Using Synthesized Aluminum Hydroxide Catalyst," International Journal of Chemical Engineering and Applications vol. 6, no. 3, pp. 146-151, 2015.

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