Membrane-Coupled Cathode for the Reduction of Carbon Dioxide in Acid-Based Electrolytes Without Mobile Cations
US-2021079538-A1 · Mar 18, 2021 · US
Electrochemical generation of carbon-containing products from carbon dioxide and carbon monoxide
US2021140056A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021140056-A1 |
| Application number | US-201917044379-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 11, 2019 |
| Priority date | Apr 11, 2018 |
| Publication date | May 13, 2021 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Disclosed herein is a method of electroreduction with a working electrode and counter electrode. The method includes a step of electrocatalyzing carbon monoxide and/or carbon dioxide in the presence of one or more nucleophilic co-reactants in contact with a catalytically active material present on the working electrode, thereby forming one or more carbon-containing products electrocatalytically.
First claim
Opening claim text (preview).
1 . A method of electroreduction with a working electrode and counter electrode comprising: electrocatalyzing carbon monoxide or carbon dioxide in the presence of one or more nucleophilic co-reactants in contact with a catalytically active material present on the working electrode, thereby forming one or more carbon-containing products electrocatalytically. 2 . The method according to claim 1 , wherein the counter electrode is an anode comprising an anodic catalytically active material comprised of at least one metal selected from the group consisting of iridium, nickel, iron, and tin. 3 . The method according to claim 2 , wherein the at least one metal is present, at least in part, as a metal oxide. 4 . The method according to claim 1 , wherein the working electrode is a cathode comprising a cathodic catalytically active material comprised of at least one of copper, copper oxide, or a copper containing material. 5 . The method according to claim 4 , wherein the cathodic catalytically active material is present on a carbon or a conductive support which is dispersed in an ion conducting polymer or a hydrophobic polymer and deposited on a porous gas diffusion layer or porous membrane material. 6 . The method according to claim 1 , wherein the one or more nucleophilic co-reactants are selected from the group consisting of ammonia, amines, water, alcohols, carboxylic acids and thiols. 7 . The method according to claim 1 , wherein the one or more nucleophilic co-reactants are selected from the group consisting of C1-C6 aliphatic primary amines, C1-C6 aliphatic secondary amines, aromatic primary amines, and aromatic secondary amines. 8 . The method according to claim 1 , wherein the one or more carbon-containing products comprise one or more carbon-containing products selected from the group consisting of ethylene, acetic acid, acetaldehyde, ethanol, propanol, amides, and thioesters. 9 . The method according to claim 1 , wherein the method further comprises using an anolyte and an optional catholyte, wherein the anolyte comprises at least one metal cation and wherein the catholyte comprises at least one of carbonate, bicarbonate, chloride, iodide, hydroxide or other anion. 10 . The method according to claim 9 , wherein the method further comprises: a) streaming the anolyte through an anolyte chamber, at least one of carbon monoxide or carbon dioxide through a fluid chamber and optionally a catholyte through an optional catholyte chamber of an electrolyzer; b) streaming one or more nucleophilic co-reactants with the anolyte, at least one of carbon monoxide or carbon dioxide or the optional catholyte; c) electrically connecting the anode and the cathode using a source of electrical current; and d) electrocatalyzing at least one of carbon monoxide or carbon dioxide in the presence of the one or more nucleophilic co-reactants in contact with a catalytically active material present on the working electrode, thereby forming one or more carbon-containing chemical products electrocatalytically. 11 . The method according to claim 10 , wherein the porous membrane comprises an anion exchange membrane.
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2021140056A1 cover?
- Disclosed herein is a method of electroreduction with a working electrode and counter electrode. The method includes a step of electrocatalyzing carbon monoxide and/or carbon dioxide in the presence of one or more nucleophilic co-reactants in contact with a catalytically active material present on the working electrode, thereby forming one or more carbon-containing products electrocatalytically.
- Who is the assignee on this patent?
- Univ Delaware
- What technology area does this patent fall under?
- Primary CPC classification C25B3/25. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 13 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).