Graphene and carbon nanotube compositions
First Claim
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1. A composition comprising two or more graphene sheets, wherein the two or more graphene sheets are functionalized with a first negatively charged group;
- carbon nanotubes disposed between the two or more graphene sheets, wherein the carbon nanotubes are functionalized with a second negatively charged group;
wherein a weight ratio of the two or more graphene sheets to the carbon nanotubes is in the range of 1/5 to 5/1; and
wherein the composition further comprises an ammonium ion or a substituted ammonium ion disposed between the two or more graphene sheets.
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Abstract
Compositions having carbon nanotubes and two or more graphene sheets are disclosed. The carbon nanotubes can be interposed between the graphene sheets within the composition. Applicants have surprisingly found that, in some embodiments, these compositions exhibit superior absorbent and/or electrical properties. The present application also includes methods of making and using these compositions, and capacitors including these compositions.
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Citations
24 Claims
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1. A composition comprising two or more graphene sheets, wherein the two or more graphene sheets are functionalized with a first negatively charged group;
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carbon nanotubes disposed between the two or more graphene sheets, wherein the carbon nanotubes are functionalized with a second negatively charged group; wherein a weight ratio of the two or more graphene sheets to the carbon nanotubes is in the range of 1/5 to 5/1; and wherein the composition further comprises an ammonium ion or a substituted ammonium ion disposed between the two or more graphene sheets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification