HRTEM-EELS cross-sectional characterization of HOPG substrate with platinum nanoparticles deposited using a coaxial arc plasma gun

Kun'ichi Miyazawa, Takuro Nagai, Koji Kimoto, Masaru Yoshitake, Yumi Tanaka

Research output: Contribution to journalArticle

Abstract

Platinum nanoparticles were deposited on a highly oriented pyrolytic graphite (HOPG) substrate using a coaxial arc plasma gun. The Pt-deposited HOPG substrate was cross-sectioned to prepare a thin foil specimen using focused ion beam milling, and was analyzed by using high resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, and electron energy loss spectroscopy. The surface of the HOPG substrate was observed to be disordered by the Pt ion irradiation. The surface was located using the depth profiles of π + σ plasmon peaks and the full width at half maximum of π peaks. The denaturation of the HOPG substrate by the Pt ion irradiation was observed to a depth of approximately 12 nm.

Original languageEnglish
Article number107623
JournalDiamond and Related Materials
Volume101
DOIs
Publication statusPublished - Jan 2020

Fingerprint

Plasma guns
plasma guns
Graphite
Electron energy loss spectroscopy
pyrolytic graphite
Platinum
platinum
arcs
Nanoparticles
nanoparticles
Substrates
Ion bombardment
ion irradiation
Denaturation
biopolymer denaturation
Focused ion beams
High resolution transmission electron microscopy
Full width at half maximum
Metal foil
spectroscopy

Keywords

  • CAPD
  • EELS
  • HOPG
  • HRTEM
  • PEFC
  • Platinum

Cite this

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title = "HRTEM-EELS cross-sectional characterization of HOPG substrate with platinum nanoparticles deposited using a coaxial arc plasma gun",
abstract = "Platinum nanoparticles were deposited on a highly oriented pyrolytic graphite (HOPG) substrate using a coaxial arc plasma gun. The Pt-deposited HOPG substrate was cross-sectioned to prepare a thin foil specimen using focused ion beam milling, and was analyzed by using high resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, and electron energy loss spectroscopy. The surface of the HOPG substrate was observed to be disordered by the Pt ion irradiation. The surface was located using the depth profiles of π + σ plasmon peaks and the full width at half maximum of π⁎ peaks. The denaturation of the HOPG substrate by the Pt ion irradiation was observed to a depth of approximately 12 nm.",
keywords = "CAPD, EELS, HOPG, HRTEM, PEFC, Platinum",
author = "Kun'ichi Miyazawa and Takuro Nagai and Koji Kimoto and Masaru Yoshitake and Yumi Tanaka",
year = "2020",
month = "1",
doi = "10.1016/j.diamond.2019.107623",
language = "English",
volume = "101",
journal = "Diamond and Related Materials",
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publisher = "Elsevier BV",

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HRTEM-EELS cross-sectional characterization of HOPG substrate with platinum nanoparticles deposited using a coaxial arc plasma gun. / Miyazawa, Kun'ichi; Nagai, Takuro; Kimoto, Koji; Yoshitake, Masaru; Tanaka, Yumi.

In: Diamond and Related Materials, Vol. 101, 107623, 01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - HRTEM-EELS cross-sectional characterization of HOPG substrate with platinum nanoparticles deposited using a coaxial arc plasma gun

AU - Miyazawa, Kun'ichi

AU - Nagai, Takuro

AU - Kimoto, Koji

AU - Yoshitake, Masaru

AU - Tanaka, Yumi

PY - 2020/1

Y1 - 2020/1

N2 - Platinum nanoparticles were deposited on a highly oriented pyrolytic graphite (HOPG) substrate using a coaxial arc plasma gun. The Pt-deposited HOPG substrate was cross-sectioned to prepare a thin foil specimen using focused ion beam milling, and was analyzed by using high resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, and electron energy loss spectroscopy. The surface of the HOPG substrate was observed to be disordered by the Pt ion irradiation. The surface was located using the depth profiles of π + σ plasmon peaks and the full width at half maximum of π⁎ peaks. The denaturation of the HOPG substrate by the Pt ion irradiation was observed to a depth of approximately 12 nm.

AB - Platinum nanoparticles were deposited on a highly oriented pyrolytic graphite (HOPG) substrate using a coaxial arc plasma gun. The Pt-deposited HOPG substrate was cross-sectioned to prepare a thin foil specimen using focused ion beam milling, and was analyzed by using high resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, and electron energy loss spectroscopy. The surface of the HOPG substrate was observed to be disordered by the Pt ion irradiation. The surface was located using the depth profiles of π + σ plasmon peaks and the full width at half maximum of π⁎ peaks. The denaturation of the HOPG substrate by the Pt ion irradiation was observed to a depth of approximately 12 nm.

KW - CAPD

KW - EELS

KW - HOPG

KW - HRTEM

KW - PEFC

KW - Platinum

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