화학공학소재연구정보센터
Energy, Vol.157, 608-614, 2018
Hydrogen generation from hydrolysis of activated aluminum composites in tap water
Activated aluminum composites Al-X(X = Sn, Bi, Bi-Sn) were prepared by high-energy milling, and characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Their hydrogen generation was systematically investigated in tap water. The experimental results suggest that the ternary Al-Bi-Sn composites show the better hydrolysis properties than binary composites Al-Bi and Al-Sn owing to the synergistic effect of metal Bi and Sn. The 3 h milled Al-7.5%Bi-2.5%Sn composite exhibits the highest hydrogen conversion yield with the maximum hydrogen generation rate of 9.5 mLs g(-1) at 35 degrees C. In addition, the effect of initial reaction temperature and water quality on the hydrolysis properties, the methods of protecting the activity of activated Al composites are discussed as well. (C) 2018 Published by Elsevier Ltd.