A fiber and a process for the manufacture thereof
US-2018163326-A1 · Jun 14, 2018 · US
Method for Producing Cellulose Nanofiber Carbon
US2022205143A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022205143-A1 |
| Application number | US-201917606562-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 13, 2019 |
| Priority date | May 13, 2019 |
| Publication date | Jun 30, 2022 |
| Grant date | — |
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Abstract
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A method includes a freezing process in which a solution or gel containing cellulose nanofibers is frozen to obtain a frozen component, a drying process in which the frozen component is dried in a vacuum to obtain a dry component, and a carbonizing process in which the dry component is heated and carbonized in a non-combustible atmosphere, and in the carbonizing process, the dry component is heated together with a reducing catalyst and also a material that generates a reducing gas by thermal decomposition.
First claim
Opening claim text (preview).
1 . A method of producing cellulose nanofiber carbon, comprising: a freezing process in which a solution or gel containing cellulose nanofibers is frozen to obtain a frozen component; a drying process in which the frozen component is dried in a vacuum to obtain a dry component; and a carbonizing process in which the dry component is heated and carbonized in a non-combustible atmosphere, wherein, in the carbonizing process, the dry component is heated together with a reducing catalyst. 2 . The method of producing cellulose nanofiber carbon according to claim 1 , wherein the reducing catalyst is iron powder, and wherein, in the carbonizing process, the dry component is heated together with the iron powder. 3 . The method of producing cellulose nanofiber carbon according to claim 1 , wherein the reducing catalyst is iron powder and zinc powder, and wherein, in the carbonizing process, the dry component is heated together with the iron powder and the zinc powder. 4 . The method of producing cellulose nanofiber carbon according to claim 1 , wherein, in the carbonizing process, the dry component is heated together with the reducing catalyst and a material that generates a reducing gas by thermal decomposition. 5 . The method of producing cellulose nanofiber carbon according to claim 4 , wherein the material that generates a reducing gas by the thermal decomposition is sodium bicarbonate, and wherein, in the carbonizing process, the dry component is heated together with the reducing catalyst and the sodium bicarbonate. 6 . The method of producing cellulose nanofiber carbon according to claim 2 , wherein, in the carbonizing process, the dry component is heated together with the reducing catalyst and a material that generates a reducing gas by thermal decomposition. 7 . The method of producing cellulose nanofiber carbon according to claim 3 , wherein, in the carbonizing process, the dry component is heated together with the reducing catalyst and a material that generates a reducing gas by thermal decomposition.
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Classifications
Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title
with zinc, cadmium or mercury · CPC title
Iron · CPC title
characterised by gaseous activating agents · CPC title
characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77) · CPC title
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- What does patent US2022205143A1 cover?
- A method includes a freezing process in which a solution or gel containing cellulose nanofibers is frozen to obtain a frozen component, a drying process in which the frozen component is dried in a vacuum to obtain a dry component, and a carbonizing process in which the dry component is heated and carbonized in a non-combustible atmosphere, and in the carbonizing process, the dry component is he…
- Who is the assignee on this patent?
- Nippon Telegraph & Telephone
- What technology area does this patent fall under?
- Primary CPC classification D01F9/16. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Thu Jun 30 2022 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).