Article Facile preparation of graphene–graphene oxide liquid cells and their application in liquid-phase STEM imaging of Pt atoms

Masaki Takeguchi SAMURAI ORCID ; Kazutaka Mitsuishi SAMURAI ORCID ; Ayako Hashimoto SAMURAI ORCID

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Citation
Masaki Takeguchi, Kazutaka Mitsuishi, Ayako Hashimoto. Facile preparation of graphene–graphene oxide liquid cells and their application in liquid-phase STEM imaging of Pt atoms. Applied Physics Express. 2024, 17 (8), 085001. https://doi.org/10.35848/1882-0786/ad63f2
SAMURAI

Description:

(abstract)

Graphene-graphene oxide (GO) hybrid liquid cells (LCs) for liquid-phase scanning transmission electron microscopy (STEM) were fabricated using a facile method with commercial graphene on a polymethyl methacrylate sheet and GO on a TEM grid. LCs containing Pt nanoparticles (NPs) and pure water were efficiently produced and observed via STEM. Their composition and thickness were characterized by STEM-electron energy-loss spectroscopy. High-resolution (HR) STEM revealed slow-moving Pt NPs’ atomic structures and fast-moving single Pt atoms at the LC’s thin edges. Minimal damage during HR STEM indicated stable LCs because of their excellent electrical and thermal conductivities and radiolysis species scavenging ability.

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Keyword: liquid cell, liquid-phase transmission electron microscopy, graphene, graphene oxide, platinum, scanning transmission electron microscopy

Date published: 2024-08-01

Publisher: IOP Publishing

Journal:

  • Applied Physics Express (ISSN: 18820778) vol. 17 issue. 8 085001

Funding:

  • Japan Science and Technology Agency JPMJGX23H2
  • Precursory Research for Embryonic Science and Technology JPMJPR17S7
  • Acquisition, Technology & Logistics Agency JPJ004596
  • Japan Society for the Promotion of Science 24K08252

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.35848/1882-0786/ad63f2

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Updated at: 2024-08-02 16:30:12 +0900

Published on MDR: 2024-08-02 16:30:12 +0900

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