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A study of hydrogen generation by reaction of an activated Mg–CoCl2 (magnesium–cobalt chloride) composite with pure water for portable applications

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  • Sun, Qian
  • Zou, Meishuai
  • Guo, Xiaoyan
  • Yang, Rongjie
  • Huang, Haitao
  • Huang, Peng
  • He, Xiangdong

Abstract

Hydrogen production based in the corrosion of light metals in water solutions is an interesting alternative. Among all of them, Mg is probably the most adequate metal for energetic purposes due to its high electron density and oxidation potential. A safe and environmental-friendly method of hydrogen production from milled Mg–CoCl2 composites in water was proposed in this paper. An improved mechanism for the reactivity was developed. The experimental results indicated that the activated Mg–CoCl2 composites are very promising materials for hydrogen generation upon reaction with pure water. When immersed in pure water (50 °C), the hydrolysis reaction of the Mg-6 wt% CoCl2 composite began immediately, and the reaction rate reached 558.6 mL(min g)−1 in the first minute; the evolution of hydrogen reached 98.6% of the theoretical yield.

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  • Sun, Qian & Zou, Meishuai & Guo, Xiaoyan & Yang, Rongjie & Huang, Haitao & Huang, Peng & He, Xiangdong, 2015. "A study of hydrogen generation by reaction of an activated Mg–CoCl2 (magnesium–cobalt chloride) composite with pure water for portable applications," Energy, Elsevier, vol. 79(C), pages 310-314.
    • Handle: RePEc:eee:energy:v:79:y:2015:i:c:p:310-314
    DOI: 10.1016/j.energy.2014.11.016
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    References listed on IDEAS

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    Cited by:

    1. Xiao, Fei & Guo, Yanpei & Li, Jianmin & Yang, Rongjie, 2018. "Hydrogen generation from hydrolysis of activated aluminum composites in tap water," Energy, Elsevier, vol. 157(C), pages 608-614.
    2. Ma, Miaolian & Yang, Lingli & Ouyang, Liuzhang & Shao, Huaiyu & Zhu, Min, 2019. "Promoting hydrogen generation from the hydrolysis of Mg-Graphite composites by plasma-assisted milling," Energy, Elsevier, vol. 167(C), pages 1205-1211.
    3. Öz, Çisem & Coşkuner Filiz, Bilge & Kantürk Figen, Aysel, 2017. "The effect of vinegar–acetic acid solution on the hydrogen generation performance of mechanochemically modified Magnesium (Mg) granules," Energy, Elsevier, vol. 127(C), pages 328-334.

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