Metal-metal bonded ammonia oxidation catalysts

Patent metadata

Field	Value
Publication number	US-11465136-B2
Application number	US-202017078868-A
Country	US
Kind code	B2
Filing date	Oct 23, 2020
Priority date	Oct 23, 2019
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

Methods and catalysts for oxidizing ammonia to nitrogen are described. Specifically, diruthenium complexes that spontaneously catalyze this reaction are disclosed. Accordingly, the disclosed methods and catalysts can be used in various electrochemical cell-based energy storage and energy production applications that could form the basis for a potential nitrogen economy.

First claim

We claim:

1. A diruthenium complex having the chemical structure:

wherein:
the central diruthenium is [Ru] 2 n+ , where n is 3-7;
L is NH 3 ;
each E is O;
each X is Cl, F, or Me; and
R is not present.

2. The diruthenium complex of claim 1 , wherein each X is Cl.

Assignees

• Wisconsin Alumni Res Found

Inventors

• Berry John
• Wallen Christian
• Brown Tristan
• Park Sungho

Classifications

• C25B1/01

  Products · CPC title

• B01J2531/821

  Ruthenium · CPC title

• B01J31/1815 Primary

  with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine · CPC title

• B01J2231/70

  Oxidation reactions, e.g. epoxidation, (di)hydroxylation, dehydrogenation and analogues · CPC title

• C01B21/02 Primary

  Preparation of nitrogen (by decomposition of ammonia C01B3/047) · CPC title