Nb2AlC etching method

1g of material was added with 10ml of 50% hydrofluoric acid solution, and stirred at 35 ° C for 48 hours.

Centrifuge 5-7 times in deionized water.

Wet Nb2C was dissolved in 10 ml of isopropylamine and stirred at room temperature for 24 hours. Centrifuge once (note once), then add 100 ml of water (or 50) Ultrasound for 1-2 hours.

Centrifuge at 3500 rpm for 1 hour to obtain a colloidal solution. The pellet can be repeatedly sonicated or discarded.

Tetramethylammonium hydroxide can also be used for intercalation. The dosage is consistent with the operation, and the intercalation effect is better. However, pay attention to the toxicity of tetramethylammonium hydroxide. Please pay attention to safety and extreme toxicity!