MXenes are a class of layered materials made from the precursor MAXene by removing the A element. Thus, they are named MXenes and they have a similar structure to graphene and other 2D layers. The precursor, Nb2AlC, is a member of MAX phases, which is a family of ternary carbide or nitride with the formula Mn+1AXn, where M is a transition metal, A is the main-group element, and X is C. We use our patent pending formula NaF-HCl solution etching process. Special care is given to reducing the etching rate and eliminating secondary MAX phases in order that 100% pure, perfectly layered, and purity higher than 99.999% can be achieved. The entire process starts from the precursor Nb2AlC and ends with Nb2C after pulsed NaF-HCl etching process. These MXenes have many important applications in battery, storage, catalysis, magnetism, and electronics. Each order contains 250mg of Nb2C vdW crystallites.
Atomic structure of MXene Nb2C
SEM images collected from MXene Nb2C vdW layers
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