AI Article Synopsis
- Researchers developed a green method to create edge-oxidized graphene that maintains its structural integrity while enhancing dispersion stability and electrical conductivity.
- This method utilizes the high reactivity of multi-layer graphene and oxidizing radicals generated during a reaction between sodium persulfate and ferrous ions.
- The degree of oxidation can be easily controlled by adjusting the treatment time, enabling potential applications in anti-static films, energy storage, flexible sensors, and advanced nanocomposites.
Article Abstract
Effective edge oxidation of graphene with high structural integrity is highly desirable yet technically challenging for most practical applications. In this work, we have developed a green and facile strategy to obtain edge-oxidized graphene with good dispersion stability and high electrical conductivity by exploiting high edge reactivity of highly conductive multi-layer graphene and oxidizing radicals (SO ˙) generated from sodium persulfate (NaSO) with ferrous ion (Fe) activation. Owing to high structural integrity of pristine graphene and effective edge oxidation, the obtained edge-oxidized graphene exhibited excellent dispersion stability and satisfactory electrical conductivity ( ≥240 S cm). Moreover, the oxidation degree of pristine graphene can be well controlled by adjusting treatment time. The obtained edge-oxidized graphene is expected to find a variety of applications in many fields of anti-static films, energy storage materials, flexible sensors and high-performance nanocomposites.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056344 | PMC |
| http://dx.doi.org/10.1039/d0ra05575a | DOI Listing |
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