Raney Nickel
How it is prepared - https://www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/r/Raney_nickel.htm#:~:text=Raney%20nickel%20is%20produced%20when,which%20gives%20high%20catalytic%20activity.
K0H dissolves out aluminum from Ni-Al alloy.
How it is prepared - https://www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/r/Raney_nickel.htm#:~:text=Raney%20nickel%20is%20produced%20when,which%20gives%20high%20catalytic%20activity.
K0H dissolves out aluminum from Ni-Al alloy.