Abstract
ABSTRACTA novel solid-state aluminum-calcium hydride-nickel composite/sodium borohydride system was prepared by milling and its hydrolysis performance was characeterized. The optimized system provided 100% hydrogen yield, and the hydrogen generation rate was regulated by altering the calcium hydride concentration, nickel concentration, hydrolysis temperature, and milling time. Hydrogen generation measurements and microstructure analysis showed that improved hydrogen production was obtained by microgalvanic cell formation between nickel and aluminum, decreased grain size by milling, and improved catalytic activity of nickel deposited on the surface of aluminum hydroxide.
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