| abstract |
The invention discloses foamed nickel/MXene-Co 3 O 4 The composite electrode and the preparation method thereof comprise the following steps: (1) pretreatment of foamed nickel: taking foamed nickel, sequentially carrying out ultrasonic cleaning by using sulfuric acid, ethanol and deionized water, and drying at constant temperature; (2) preparing a composite electrode: taking MXene and Co 3 O 4 Mixing to obtain mixed powder, coating the mixed powder on the surface of the foamed nickel, and performing vacuum plasma sintering to obtain the composite electrode. The invention adopts foamed nickel, MXene and Co 3 O 4 Preparing foam material composite electrode, namely, using the high-temperature and high-pressure action of a vacuum plasma sintering furnace and using foam nickel to mix MXene-Co 3 O 4 The mixed powder is stably combined, the use of an adhesive is avoided, the preparation cost is reduced, and the preparation time is only 40-60 min; the MXene has an organ structure, so that the catalyst can be effectively contained and dispersed, the problem of easy agglomeration of the catalyst is solved, the activity and stability of the catalyst are improved, the prepared electrode is large in specific surface area and good in conductivity, and the electrode material with excellent performance can be formed. |