Patent ID: 11939684
Assignee: TRIBOTECC GMBH
Field: Surface technology, coating (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A composition of formula I:

Fe9-a-b-cNiaCobMcS8-dSed  (I), wherein,
M stands for one or more elements having in the ionic state an effective ionic radius in the range of 70-92 pm,
a is a number within the range of 2.5≤a≤3.5,
b is a number within the range of 1.5≤b≤5.0,
c is a number within the range of 0.0≤c≤2.0,
d is a number within the range of 0.0≤d≤4.0,
the sum of a, b and c is in the range of 5≤a+b+c≤8,
≥90 wt. % of the composition is in the pentlandite phase, and
the composition is configured for electrocatalytic splitting of water.