Normal-temperature solid hydrogen storage alloy and preparation method thereof

• Main Authors: LI ZONGXIAO, FAN HUIWEN, LIU WEI
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: ALLOYS; CASTING; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; COMPOUNDS THEREOF; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; POWDER METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

The invention discloses a normal-temperature solid hydrogen storage alloy and a preparation method thereof, the general formula of the hydrogen storage alloy is Hf3Nix, and x is 0.8-2; the preparation method comprises the following steps: S1, accurately weighing an Hf source and a Ni source, uniformly mixing, melting in an electric arc melting furnace, and naturally cooling to obtain a blocky hydrogen storage alloy; s2, the blocky hydrogen storage alloy is put into a standard muffle furnace to be subjected to heat treatment, and natural cooling is conducted; and S3, the blocky hydrogen storage alloy subjected to heat treatment is put into a plasma ball mill to be ground, and the normal-temperature solid hydrogen storage alloy powder is obtained. The normal-temperature solid hydrogen storage alloy material has the advantages that the normal-temperature solid hydrogen storage alloy material is small in size, high in reversible hydrogen storage/desorption capacity, low in hydrogen charging/desorption temperature