Uniform and monodisperse FeCoNi medium-entropy alloy nanocrystalline composite material, preparation and application
The invention discloses a uniform and monodisperse FeCoNi medium-entropy alloy nanocrystalline composite material as well as preparation and application thereof, and belongs to the field of micro-nano functional materials and the field of electrochemical energy storage and conversion. The material takes graphene-like carbon with three-dimensional ordered macropores (3DOM) as a carrier, and the graphene-like carbon is uniformly embedded in three-dimensional bicontinuous pore walls of the carbon carrier in a monodisperse nano-particle form. The preparation method comprises the following steps: (1) preparing a precursor solution containing ferric nitrate, cobalt nitrate, nickel nitrate and citric acid; (2) dipping a hard template self-assembled by polymethyl methacrylate microspheres in the precursor solution, and carrying out suction filtration and drying to obtain a precursor; and (3) putting the precursor into a tubular furnace, roasting in an inert atmosphere, and cooling to obtain the uniform and monodisperse FeCoNi medium-entropy alloy nanocrystalline material. The material has excellent lithium polysulfide catalytic conversion activity when being used as a lithium-sulfur battery diaphragm modification material, and the reversible specific capacity and rate capability of a sulfur positive electrode can be remarkably improved..
| Medienart: |
|
|---|
Patent| Erscheinungsjahr: |
2023 |
|---|---|
| Erschienen: |
2023 |
| Enthalten in: |
Europäisches Patentamt - (2023) vom: 25. Apr. Zur Gesamtaufnahme - year:2023 |
|---|
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
JI KEMENG [VerfasserIn] |
|---|
| Links: |
Volltext [kostenfrei] |
|---|
| Anmerkungen: |
Source: www.epo.org (no modifications made), First posted: 2023-04-25, Last update posted on www.tib.eu: 2023-09-26, Last updated: 2023-09-29 |
|---|
| Patentnummer: |
CN116000281 |
|---|
| Förderinstitution / Projekttitel: |
|
|---|
| PPN (Katalog-ID): |
EPA001750100 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | EPA001750100 | ||
| 003 | DE-627 | ||
| 005 | 20240327213355.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 240327s2023 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)EPA001750100 | ||
| 035 | |a (EPA)CN116000281 | ||
| 035 | |a (EPA)86019378 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 0 | |a JI KEMENG |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Uniform and monodisperse FeCoNi medium-entropy alloy nanocrystalline composite material, preparation and application |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Source: www.epo.org (no modifications made), First posted: 2023-04-25, Last update posted on www.tib.eu: 2023-09-26, Last updated: 2023-09-29 | ||
| 520 | |a The invention discloses a uniform and monodisperse FeCoNi medium-entropy alloy nanocrystalline composite material as well as preparation and application thereof, and belongs to the field of micro-nano functional materials and the field of electrochemical energy storage and conversion. The material takes graphene-like carbon with three-dimensional ordered macropores (3DOM) as a carrier, and the graphene-like carbon is uniformly embedded in three-dimensional bicontinuous pore walls of the carbon carrier in a monodisperse nano-particle form. The preparation method comprises the following steps: (1) preparing a precursor solution containing ferric nitrate, cobalt nitrate, nickel nitrate and citric acid; (2) dipping a hard template self-assembled by polymethyl methacrylate microspheres in the precursor solution, and carrying out suction filtration and drying to obtain a precursor; and (3) putting the precursor into a tubular furnace, roasting in an inert atmosphere, and cooling to obtain the uniform and monodisperse FeCoNi medium-entropy alloy nanocrystalline material. The material has excellent lithium polysulfide catalytic conversion activity when being used as a lithium-sulfur battery diaphragm modification material, and the reversible specific capacity and rate capability of a sulfur positive electrode can be remarkably improved. | ||
| 650 | 4 | |a H01M: Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy | |
| 650 | 4 | |a B22F: Working metallic powder; manufacture of articles from metallic powder; making metallic powder (making alloys by powder metallurgy c22c); apparatus or devices specially adapted for metallic powder | |
| 650 | 4 | |a B82Y: Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures | |
| 650 | 4 | |a elt | |
| 650 | 4 | |a phy | |
| 650 | 4 | |a mas | |
| 650 | 4 | |a 615 | |
| 700 | 0 | |a CHONG BOYANG |4 aut | |
| 700 | 0 | |a LI ZIHENG |4 aut | |
| 700 | 0 | |a CHEN MINGMING |4 aut | |
| 700 | 0 | |a WANG CHENGYANG |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Europäisches Patentamt |g (2023) vom: 25. Apr. |
| 773 | 1 | 8 | |g year:2023 |g day:25 |g month:04 |
| 856 | 4 | 0 | |u https://worldwide.espacenet.com/patent/search/family/86019378/publication/CN116000281A1?q=CN116000281 |z kostenfrei |3 Volltext |
| 912 | |a GBV_EPA | ||
| 951 | |a AR | ||
| 952 | |j 2023 |b 25 |c 04 | ||