摘要:
A magnetic recording medium comprising a substrate made of non-magnetic material, and a magnetic layer formed on the substrate, the magnetic layer being composed primarily of a ferromagnetic powder and a binder, wherein an amount of a sulfuric ion extracted when the magnetic recording medium is immersed in a pure water having a temperature of 30.degree. C. for one hour, is 100 .mu.g or less per one square meter of the magnetic recording medium.
摘要:
A method for generating hydrogen gas, an apparatus for producing hydrogen gas, and an energy conversion system, which are so designed as to generate hydrogen extremely efficiently without the help of catalyst are provided. The hydrogen gas is generated by decomposing a metal hydride in a mixture composed of said metal hydride, water, and a second solution which has a pH value lower than that of the aqueous solution of said metal hydride wherein the metal hydride is represented by a formula: αz(1-x)βzx[BHy], where α and β are mutually different elements selected from Groups 1A, 2A, and 2B of the periodic table; and x, y, and z are defined respectively by 0≦x≦1, 3
摘要翻译:本发明提供一种生成氢气的方法,氢气的制造装置和能量转换系统,其特征在于能够非常有效地在无需催化剂的帮助下产生氢气。 通过在由所述金属氢化物,水和pH值低于所述金属氢化物的水溶液的第二溶液组成的混合物中分解金属氢化物而产生氢气,其中金属氢化物由式 其中α和β是选自1A,2A组中的相互不同的元素,其中α和β是相互不同的元素,其选自1A,2A, ,和2B的周期表; x,y和z分别由0 <= x <= 1,3,