Transient chemical and structural changes in graphene oxide during ripening

Hayato Otsuka, Koki Urita, Nobutaka Honma, Takashi Kimuro, Yasushi Amako, Radovan Kukobat, Teresa J. Bandosz, Junzo Ukai, Isamu Moriguchi and Katsumi Kaneko ()
Additional contact information
Hayato Otsuka: Shinshu University
Koki Urita: Nagasaki University
Nobutaka Honma: Toyota Motor Corporation
Takashi Kimuro: Sanwayuka Industry Corporation
Yasushi Amako: Shinshu University
Radovan Kukobat: Shinshu University
Teresa J. Bandosz: The City College of New York
Junzo Ukai: Toyota Motor Corporation
Isamu Moriguchi: Nagasaki University
Katsumi Kaneko: Shinshu University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Graphene oxide (GO)—the oxidized form of graphene—is actively studied in various fields, such as energy, electronic devices, separation of water, materials engineering, and medical technologies, owing to its fascinating physicochemical properties. One major drawback of GO is its instability, which leads to the difficulties in product management. A physicochemical understanding of the ever-changing nature of GO can remove the barrier for its growing applications. Here, we evidencde the presence of intrinsic, metastable and transient GO states upon ripening. The three GO states are identified using a $$\pi -{\pi }^{*}$$ π − π * transition peak of ultraviolet–visible absorption spectra and exhibit inherent magnetic and electrical properties. The presence of three states of GO is supported by the compositional changes of oxygen functional groups detected via X-ray photoelectron spectroscopy and structural information from X-ray diffraction analysis and transmission electron microscopy. Although intrinsic GO having a $$\pi -{\pi }^{*}$$ π − π * transition at 230.5 ± 0.5 nm is stable only for 5 days at 298 K, the intrinsic state can be stabilized by either storing GO dispersions below 255 K or by adding ammonium peroxydisulfate.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-024-46083-4 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-46083-4

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-46083-4

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().