Carbon nanotube-graphene composite
US-2015318120-A1 · Nov 5, 2015 · US
Hydrogen storage material
US11459234B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11459234-B2 |
| Application number | US-201916961788-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 14, 2019 |
| Priority date | Jan 12, 2018 |
| Publication date | Oct 4, 2022 |
| Grant date | Oct 4, 2022 |
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Abstract
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The present relates to a carbon material having a 3D structure and made of graphene oxide and carbon nanotubes, characterized in that the 3D structure consists in that the carbon nanotubes are located with some agglomeration between the graphene oxide layers so as to extend the spacing between the graphene oxide layers.
First claim
Opening claim text (preview).
The invention claimed is: 1. Hydrogen storage material comprising: a carbon material having a 3D structure and formed of graphene oxide and carbon nanotubes, characterized in that the 3D structure consists in that the carbon nanotubes are agglomerated between the graphene oxide layers so as to extend the spacing between the graphene oxide layers. 2. Hydrogen storage material comprising: a carbon material according to claim 1 , characterized in that the carbon nanotubes are multi-walled carbon nanotubes. 3. Hydrogen storage material according to claim 1 , characterized in that it has a hydrogen storage capacity of 4.5 mass % or greater. 4. Hydrogen storage material according to claim 1 , characterized in that it has a hydrogen storage capacity of 5 mass % or greater. 5. Hydrogen storage material according to claim 4 , characterized in that the hydrogen was absorbed at p=50 bar and T=298 K. 6. A Carbon material synthesis method for manufacturing a carbon material having a 3D structure and made of graphene oxide and carbon nanotubes, characterized in that the 3D structure consists in that the carbon nanotubes are agglomerated between the graphene oxide layers so as to extend the spacing between the graphene oxide layers, comprising the steps of dispersing graphene oxide and carbon nanotubes in deionized water, mixing, adding an acid and a reduction agent, stirring, and recovering the carbon material. 7. The Carbon material synthesis method according to claim 6 , characterized in that the recovering step involves filtering and washing. 8. The Carbon material synthesis method according to claim 6 , characterized in that the acid is HCl 1M. 9. The Carbon material synthesis method according to claim 6 , characterized in that the reduction agent is Vitamin C. 10. The Carbon material synthesis method according to claim 7 , characterized in that the graphene oxide and the carbon nanotubes are dispersed in a ratio 1:1.
Assignees
Inventors
Classifications
Manufacture or treatment of nanostructures · CPC title
Elemental carbon, e.g. active carbon, carbon nanotubes or fullerenes · CPC title
Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title
obtained by TEM, STEM, STM or AFM · CPC title
Graphene oxide · CPC title
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- What does patent US11459234B2 cover?
- The present relates to a carbon material having a 3D structure and made of graphene oxide and carbon nanotubes, characterized in that the 3D structure consists in that the carbon nanotubes are located with some agglomeration between the graphene oxide layers so as to extend the spacing between the graphene oxide layers.
- Who is the assignee on this patent?
- Ecole Polytechnique Fed Lausanne Epfl
- What technology area does this patent fall under?
- Primary CPC classification C01B3/0078. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 04 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).