Hydrogen evolution reaction catalyst

Patent metadata

Field	Value
Publication number	US-9255334-B2
Application number	US-201213664122-A
Country	US
Kind code	B2
Filing date	Oct 30, 2012
Priority date	Oct 30, 2012
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

Systems and methods for a hydrogen evolution reaction catalyst are provided. Electrode material includes a plurality of clusters. The electrode exhibits bifunctionality with respect to the hydrogen evolution reaction. The electrode with clusters exhibits improved performance with respect to the intrinsic material of the electrode absent the clusters.

First claim

What is claimed is:

1. An electrode for use in a hydrogen evolution reaction, comprising:
an electrode platinum substrate interactive with atomic hydrogen to adsorb atomic hydrogen;
a plurality of nickel oxide or nickel hydroxide clusters directly deposited on the surface of the electrode platinum substrate as island shapes and interactive with water to dissociate hydrogen and hydroxide from water;
wherein the electrode exhibits bifunctionality with respect to the hydrogen evolution reaction.

2. The electrode of claim 1 , wherein the electrode platinum substrate comprises a plurality of low coordination areas on its surface.

3. The electrode of claim 2 , wherein the low coordination areas comprise a plurality of surface defects.

4. The electrode of claim 3 , wherein substantially all of the plurality of nickel oxide or nickel hydroxide clusters are deposited on the plurality of surface defects.

5. The electrode of claim 1 , wherein the nickel oxide or nickel hydroxide consists essentially of Ni(OH) 2 .

6. The electrode of claim 1 , about 35% of the electrode is covered with deposited nickel oxide or nickel clusters.

7. The electrode of claim 1 , wherein the nickel oxide or nickel hydroxide clusters have a height of about 0.7 nm and a width of about 8 nm to about 10 nm.

8. An electrolytic cell comprising:
an anode;
a cathode platinum substrate interactive with atomic hydrogen to adsorb atomic hydrogen and having a plurality of nickel oxide or nickel hydroxide clusters directly deposited on the surface of the cathode platinum substrate as island shapes and interactive with water to dissociate hydrogen and hydroxide from water;
an electrolyte;
wherein the cathode exhibits bifunctionality with respect to the hydrogen evolution reaction.

9. The electrolytic cell of claim 8 , wherein the electrolyte is an alkaline electrolyte.

10. The electrolytic cell of claim 8 , further comprising lithium ions.

11. The electrolytic cell of claim 8 , wherein the cathode platinum substrate comprises a plurality of low coordination areas on its surface.

12. The electrolytic cell of claim 11 , wherein the low coordination areas comprise a plurality of surface defects.

13. The electrolytic cell of claim 12 , wherein substantially all of the plurality of nickel oxide or nickel hydroxide clusters are deposited on the plurality of surface defects.

14. The electrolytic cell of claim 8 , wherein the nickel oxide or nickel hydroxide consists essentially of Ni(OH) 2 .

15. An electrode for use in the hydrogen evolution reaction, comprising:
an electrode platinum substrate;
a plurality of metal oxide or metal hydroxide clusters directly deposited on the surface of the electrode platinum substrate as island shapes;
where about 35% of the electrode is covered with deposited Ni(OH) 2 clusters.
wherein the electrode exhibits bifunctionality with respect to the hydrogen evolution reaction.

Assignees

• Uchicago Argonne Llc
• Uchicago Argonne Llc

Inventors

• Subbaraman Ram
• Stamenkovic Vojislav
• Markovic Nenad
• Tripkovic Dusan

Classifications

• C25B11/0452

  Chemistry & Metallurgy · mapped topic

• C25B11/0457

  Chemistry & Metallurgy · mapped topic

• C25B11/0447 Primary

  Chemistry & Metallurgy · mapped topic

• C25B1/04 Primary

  by electrolysis of water · CPC title

• Y02E60/366

  Cross-Sectional Technologies · mapped topic