论文部分内容阅读
镁铝合金(Mg_(17)Al_(12))是一种潜在的贮氢材料,可在氩气保护下,将一定化学计量比的Mg、Al单质在一定温度下熔炼获得.该合金在一定条件下完全吸氢的反应方程式为Mg_(17)A1_(12)+17H_2=17MgH_2+12A1.得到的混合物Y(1 7MgH_2+12A1)在一定条件下释放出氢气.①熔炼制备镁铝合金(Mg_(17)Al_(12))时通入氩气的目的是__.②在6.0 mol·L-1 HCl溶液中,混合物Y能完全释放出H_2.1 mol Mg_(17)Al_(12)完全吸氢后得到的混
Magnesium aluminum alloy (Mg_ (17) Al_ (12)) is a potential hydrogen storage material, which can be obtained by smelting a certain stoichiometric ratio of Mg and Al in a certain temperature under the protection of argon gas. Under the conditions of the complete hydrogen absorption reaction equation for the Mg 17 A1 12 + 17H 2 = 17MgH_2 12A1. The resulting mixture Y (1 7MgH_2 + 12A1) under certain conditions, the release of hydrogen gas ① smelting Mg-Al alloy (Mg_ (17) Al_ (12)), the purpose of introducing argon gas is __. ② In 6.0 mol·L-1 HCl solution, mixture Y can completely release H_2.1 mol Mg_ (17) Al_ (12) Hydrogen obtained after mixing