| abstract |
The invention relates to the field of high-entropy alloy nano materials, and provides a high-entropy alloy nano frame, a high-entropy alloy nano frame-manganese dioxide composite super capacitor electrode and a preparation method thereof, wherein the preparation method comprises the following steps of firstly preparing a Fe-Cr-Co-Mn-Ni-Al high-entropy alloy ingot as a precursor of a chemical etching method; then placing the alloy in a sulfuric acid solution for chemical etching treatment to prepare a single-phase high-entropy alloy nano-frame material; and finally, depositing manganese dioxide on the high-entropy alloy nano-frame structure in a potassium permanganate solution by using a pulse electrodeposition method to prepare the composite super-capacitor electrode material. By combining the high conductivity, high activity, large specific surface area and manganese dioxide performance of the high-entropy alloy nano-framework, the use efficiency of manganese dioxide oxide in the aspects of a memory, a super capacitor and the like can be improved. |