[prox]

Is aluminum magnetic? Didn’t think so?

[MobiusHorizons]

> The powder consists of nano-size flakes of aluminum oxide, molybdenum sulfide, copper, and iron oxide

Aluminum oxide is not magnetic, but the iron oxide (presumably bonded to the other ingredients) is magnetic.

[culi]

The original paper specifies in the abstraction:

> discrete nanoflakes of (Al2O3@v-MoS2)/Cu/Fe3O4

https://www.nature.com/articles/s44221-023-00079-4

[dspillett]

No, that is why it might still there to remove with a coffee filter, after removing the powder magnetically, I assume.