Metal nitride hybrid composite catalyst, manufacturing method thereof, and water electrolysis apparatus having the same
AssigneeUIF (University Industry Foundation), Yonsei University
InventorsSeong Ju HWANG, YIYANG SUN, XiaoYan JIN
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Abstract
A metal nitride hybrid composite catalyst having catalytic activity for an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), or an oxygen reduction reaction (ORR) is disclosed. The metal nitride hybrid composite catalyst may include a cerium-substituted metal nitride particle and a layered metal double hydroxide nanosheet grown on a surface of the metal nitride particle.
Claims13
A metal nitride hybrid composite catalyst comprising:
- a cerium-substituted metal nitride particle;
- and
- a layered metal double hydroxide nanosheet grown on a surface of the metal nitride particle,
- wherein the metal nitride hybrid composite catalyst exhibits catalytic activity for an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), or an oxygen reduction reaction (ORR).
A method of manufacturing a metal nitride hybrid composite catalyst, the method comprising:
- a first step of forming cerium-substituted metal oxide particles using a hydrothermal synthesis method;
- a second step of converting the metal oxide particles into metal nitride particles;
- and
- a third step of forming layered metal double hydroxide nanosheets on a surface of the metal nitride particles using a hydrothermal synthesis method.
A water electrolysis apparatus comprising:
- an ion exchange membrane;
- and a first electrode and a second electrode facing each other with the ion exchange membrane interposed therebetween,
- wherein the first electrode, in which an oxygen evolution reaction (OER) occurs, comprises a metal nitride hybrid composite catalyst comprising:
- a cerium-substituted metal nitride particle;
- and a layered metal double hydroxide nanosheet formed on a surface of the metal nitride particle.
Dependencies are inferred from the claim text.