One-step synthesis of graphene-Pt nanocomposites by gamma-ray irradiation

Akihiro Tokai; Kenji Okitsu; Fuminobu Hori; Yoshiteru Mizukoshi; Akihiro Iwase

doi:10.1016/j.radphyschem.2016.02.019

One-step synthesis of graphene-Pt nanocomposites by gamma-ray irradiation

Akihiro Tokai, Kenji Okitsu, Fuminobu Hori, Yoshiteru Mizukoshi, Akihiro Iwase

Trans-Regional Corporation Center for Industrial Materials Research

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We developed a one-step gamma-ray irradiation method to synthesize nanocomposites composed of graphene and Pt nanoparticles from aqueous solution containing graphene and Pt(IV) complex ions in the presence of 2-propanol (IPA) or sodium dodecyl sulfate (SDS). It was confirmed that gamma-ray irradiation provided carbonyl groups on graphene and Pt nanoparticles formed from the radiolytic reduction of Pt(IV) complex ions were deposited onto the carbonyl modified graphene. In the presence of IPA, small Pt nanoparticles were deposited on graphene, but large Pt nanoparticles were deposited in the presence of SDS: the size of Pt nanoparticles formed was larger in the presence of SDS than IPA. Based on the results, formation and deposition mechanisms of Pt nanoparticles were proposed.

Original language	English
Pages (from-to)	68-72
Number of pages	5
Journal	Radiation Physics and Chemistry
Volume	123
DOIs	https://doi.org/10.1016/j.radphyschem.2016.02.019
Publication status	Published - 2016 Jun 1

Keywords

Gamma-ray
Graphene
Nanocomposite
Pt nanoparticles
Surface modification

ASJC Scopus subject areas

Radiation

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title = "One-step synthesis of graphene-Pt nanocomposites by gamma-ray irradiation",

abstract = "We developed a one-step gamma-ray irradiation method to synthesize nanocomposites composed of graphene and Pt nanoparticles from aqueous solution containing graphene and Pt(IV) complex ions in the presence of 2-propanol (IPA) or sodium dodecyl sulfate (SDS). It was confirmed that gamma-ray irradiation provided carbonyl groups on graphene and Pt nanoparticles formed from the radiolytic reduction of Pt(IV) complex ions were deposited onto the carbonyl modified graphene. In the presence of IPA, small Pt nanoparticles were deposited on graphene, but large Pt nanoparticles were deposited in the presence of SDS: the size of Pt nanoparticles formed was larger in the presence of SDS than IPA. Based on the results, formation and deposition mechanisms of Pt nanoparticles were proposed.",

keywords = "Gamma-ray, Graphene, Nanocomposite, Pt nanoparticles, Surface modification",

author = "Akihiro Tokai and Kenji Okitsu and Fuminobu Hori and Yoshiteru Mizukoshi and Akihiro Iwase",

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doi = "10.1016/j.radphyschem.2016.02.019",

language = "English",

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journal = "Radiation Physics and Chemistry",

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T1 - One-step synthesis of graphene-Pt nanocomposites by gamma-ray irradiation

AU - Tokai, Akihiro

AU - Okitsu, Kenji

AU - Hori, Fuminobu

AU - Mizukoshi, Yoshiteru

AU - Iwase, Akihiro

PY - 2016/6/1

Y1 - 2016/6/1

N2 - We developed a one-step gamma-ray irradiation method to synthesize nanocomposites composed of graphene and Pt nanoparticles from aqueous solution containing graphene and Pt(IV) complex ions in the presence of 2-propanol (IPA) or sodium dodecyl sulfate (SDS). It was confirmed that gamma-ray irradiation provided carbonyl groups on graphene and Pt nanoparticles formed from the radiolytic reduction of Pt(IV) complex ions were deposited onto the carbonyl modified graphene. In the presence of IPA, small Pt nanoparticles were deposited on graphene, but large Pt nanoparticles were deposited in the presence of SDS: the size of Pt nanoparticles formed was larger in the presence of SDS than IPA. Based on the results, formation and deposition mechanisms of Pt nanoparticles were proposed.

AB - We developed a one-step gamma-ray irradiation method to synthesize nanocomposites composed of graphene and Pt nanoparticles from aqueous solution containing graphene and Pt(IV) complex ions in the presence of 2-propanol (IPA) or sodium dodecyl sulfate (SDS). It was confirmed that gamma-ray irradiation provided carbonyl groups on graphene and Pt nanoparticles formed from the radiolytic reduction of Pt(IV) complex ions were deposited onto the carbonyl modified graphene. In the presence of IPA, small Pt nanoparticles were deposited on graphene, but large Pt nanoparticles were deposited in the presence of SDS: the size of Pt nanoparticles formed was larger in the presence of SDS than IPA. Based on the results, formation and deposition mechanisms of Pt nanoparticles were proposed.

KW - Gamma-ray

KW - Graphene

KW - Nanocomposite

KW - Pt nanoparticles

KW - Surface modification

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U2 - 10.1016/j.radphyschem.2016.02.019

DO - 10.1016/j.radphyschem.2016.02.019

M3 - Article

AN - SCOPUS:84959372645

VL - 123

SP - 68

EP - 72

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

SN - 0969-806X

ER -

One-step synthesis of graphene-Pt nanocomposites by gamma-ray irradiation

Abstract

Keywords

ASJC Scopus subject areas

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