	US 11,926,907 B1
	Nickel cobalt phosphide-based nanoparticles and methods of making, and electrochemical systems and methods
Timothy N. Lambert, Albuquerque, NM (US)
Assigned to National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed by National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed on Apr. 13, 2018, as Appl. No. 15/952,769.
Claims priority of provisional application 62/485,277, filed on Apr. 13, 2017.
Int. Cl. C25B 11/069 (2021.01); C25B 1/04 (2021.01); C25B 9/19 (2021.01); C25B 9/40 (2021.01); C25B 9/73 (2021.01); C25B 11/031 (2021.01)

CPC C25B 11/069 (2021.01) [C25B 1/04 (2013.01); C25B 9/19 (2021.01); C25B 9/40 (2021.01); C25B 9/73 (2021.01); C25B 11/031 (2021.01)]

6 Claims

1. A electrode, comprising:

agglomerated nanoparticles; and

a conductor;

wherein the nanoparticles consist essentially of a metal, phosphorus and oxygen; and

wherein the metal is a mixture of nickel and cobalt having a cobalt to nickel ratio in the range of 2:1 to 100:1; and

wherein the cobalt to phosphorus ratio is between 0.8:1 and 1.2:1; and

wherein the nanoparticles have a phosphide core surrounded by an oxide; and

wherein the nanoparticles also have a phosphate phase.