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(NO 3 ) 3 : NaOH = 1:3 ~ 1:5. It was found that the Al(OH) 3 catalyst derived from the ratio Al(NO 3 ) 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 :H 2 O=3:15:50 weight ratio, very rapid hydrogen generation rate (~667 ml/gAlmin), without using any alloying elements or extreme corrosive condition, can be realized.Index Terms-Aluminum hydroxide, aluminum nitrate, hydrogen generation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.