Interactions of λ3-ScFe2 and λ2-ScFe1.8 with hydrogen
Abstract The interactions of λ 3 -ScFe 2 (MgNi 2 -type structure) and λ 2 -ScFe 1.8 (MgCu 2 -type structure) with hydrogen were studied using the following methods: differential thermal analysis in a hydrogen atmosphere, calorimetry and desorption isotherm measurements. The thermodynamic characteristics of hydrogen absorption and desorption were obtained. Different polymorphic modifications of ScFe 2 were found to have different absorption properties.