Fuel cell interconnect with iron rich rib regions and method of making thereof

A method of making an interconnect for a solid oxide fuel cell stack, comprising:

• providing a chromium alloy interconnect having ribs separated by channels;
• and
• forming metal or metal oxide caps directly on the top surfaces of the ribs on both air and fuel sides of the interconnect but not on bottom of the channels, wherein the metal or metal oxide caps comprise iron, manganese, cobalt, copper, a superalloy or an oxide thereof.

An interconnect for a solid oxide fuel cell stack, comprising:

• a chromium alloy interconnect having ribs separated by channels;
• and
• metal or metal oxide caps located directly on the top surfaces of the ribs on both air and fuel sides of the interconnect but not on bottom of the channels, wherein the metal or metal oxide caps comprise iron, manganese, cobalt, copper, a superalloy or an oxide thereof.

The interconnect of 15, further comprising a lanthanum strontium manganite layer, a manganese cobalt oxide layer, or a composite lanthanum strontium manganite/manganese cobalt oxide layer located on the metal or metal oxide caps and on the bottom of the channels on the air side of the interconnect.