Divided Electrochemical Cell and Low Cost High Purity Hydride Gas Production Process
US-2015345037-A1 · Dec 3, 2015 · US
Catalyst for electrochemical ammonia synthesis and method for producing the same
US2020086302A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020086302-A1 |
| Application number | US-201816216287-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 11, 2018 |
| Priority date | Sep 17, 2018 |
| Publication date | Mar 19, 2020 |
| Grant date | — |
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Abstract
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The present disclosure relates to a catalyst for electrochemical ammonia synthesis and a method for producing the same. The catalyst has an ammonia synthesis activity up to several times to several tens of times of the activity of the existing single metal or metal oxide catalysts. Thus, when using the catalyst, it is possible to provide a method for electrochemical ammonia synthesis having an improved ammonia production yield and rate.
First claim
Opening claim text (preview).
What is claimed is: 1 . A catalyst for electrochemical ammonia synthesis, comprising iron, copper and sulfur. 2 . The catalyst for electrochemical ammonia synthesis according to claim 1 , wherein the elemental content of iron is 0.1-10% based on the total elemental content of iron, copper and sulfur. 3 . The catalyst for electrochemical ammonia synthesis according to claim 1 , wherein the elemental content ratio of copper to sulfur is 1:2-2:1. 4 . The catalyst for electrochemical ammonia synthesis according to claim 1 , which is supported in a carbon carrier in an amount of 20-65 wt % based on the weight of carbon. 5 . The catalyst for electrochemical ammonia synthesis according to claim 4 , wherein the carbon carrier is at least one selected from Ketjen black, carbon black, graphite, carbon nanotubes, carbon nanocages and carbon fibers. 6 . The catalyst for electrochemical ammonia synthesis according to claim 1 , which is coated on at least one electrode selected from carbon paper, carbon cloth, carbon felt and fluorine-doped tin oxide (FTO) conducting glass. 7 . The catalyst for electrochemical ammonia synthesis according to claim 6 , wherein the coating is carried out through any one method selected from spray coating, screen printing and ink jet printing. 8 . The catalyst for electrochemical ammonia synthesis according to claim 6 , wherein the coating is carried out at an areal density of 0.1-10 mg/cm 2 . 9 . An electrode for ammonia synthesis, comprising the catalyst as defined in claim 1 .
Assignees
Inventors
Classifications
Preparation of ammonia by synthesis (preparation or purification of gas mixtures for ammonia synthesis C01B3/025) · CPC title
- C25B1/00Primary
Electrolytic production of inorganic compounds or non-metals · CPC title
characterised by the catalyst · CPC title
Sulfur, selenium or tellurium; Compounds thereof · CPC title
Sulfur · CPC title
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- What does patent US2020086302A1 cover?
- The present disclosure relates to a catalyst for electrochemical ammonia synthesis and a method for producing the same. The catalyst has an ammonia synthesis activity up to several times to several tens of times of the activity of the existing single metal or metal oxide catalysts. Thus, when using the catalyst, it is possible to provide a method for electrochemical ammonia synthesis having an …
- Who is the assignee on this patent?
- Korea Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification C25B1/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Mar 19 2020 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).