Catalysis of hydrogen evolution reaction using ruthenium ion complexed carbon nitride materials

Patent metadata

Field	Value
Publication number	US-11674232-B2
Application number	US-202217655943-A
Country	US
Kind code	B2
Filing date	Mar 22, 2022
Priority date	Oct 5, 2017
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A method can include incorporating graphene oxide (GO) in a solution, reducing the graphene oxide (GO) by refluxing carbon nitride (C3N4) in the solution to form carbon-nitride refluxed-graphene-oxide (C3N4-rGO) composites, and incorporating ruthenium ions into the C3N4-rGO composites to form C3N4-rGO-Ru complexes.

First claim

What is claimed is:

1. A material including C 3 N 4 -rGO-Ru complexes produced by a method comprising:
incorporating graphene oxide (GO) in a solution;
reducing the graphene oxide (GO) by refluxing carbon nitride (C 3 N 4 ) in the solution to form carbon-nitride refluxed-graphene-oxide (C 3 N 4 -rGO) composites; and
incorporating ruthenium ions into the C 3 N 4 -rGO composites to form the C 3 N 4 -rGO-Ru complexes.

2. The material of claim 1 , wherein the method further comprises using the C 3 N 4 -rGO-Ru complexes as a catalyst in a hydrogen evolution reaction (HER) process.

3. The material of claim 1 , wherein the method further comprises assembling C 3 N 4 sheets onto the refluxed GO to form a sandwich structure.

4. The material of claim 1 , wherein the reducing includes using ascorbic acid in the solution.

5. The material of claim 1 , wherein the incorporating includes refluxing ruthenium chloride (RuCl 3 ) in the solution.

6. The material of claim 1 , wherein the method further comprises confirming the formed C 3 N 4 -rGO composites by atomic force microscope (AFM) measurements.

7. The material of claim 1 , wherein the method further comprises performing x-ray photoelectron spectroscopic (XPS) measurements on the C 3 N 4 -rGO-Ru complexes.

8. The material of claim 1 , wherein the method further comprises performing transmission electron microscopy (TEM) on the C 3 N 4 -rGO-Ru complexes.

9. The material of claim 1 , wherein the solution is an aqueous solution.

10. The material of claim 9 , wherein the aqueous solution is water.

Assignees

• Univ California

Inventors

• Chen Shaowei
• Peng Yi
• Lu Bingzhang

Classifications

• C25B11/073 Primary

  characterised by the electrocatalyst material · CPC title

• C01B3/042

  Decomposition of water (by electrolysis of water C25B1/04) · CPC title

• Y02E60/36

  Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title

• B01J27/20

  Carbon compounds · CPC title

• C25B1/04

  by electrolysis of water · CPC title