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

被引：7
作者：
Tokai, Akihiro [1 ]
Okitsu, Kenji [1 ]
Hori, Fuminobu [1 ]
Mizukoshi, Yoshiteru [2 ]
Iwase, Akihiro [1 ]
机构：
[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Mat Sci, Sakai, Osaka 5998531, Japan
[2] Tohoku Univ, Inst Mat Res, Kansai Ctr, Sakai, Osaka 5998531, Japan
来源：
RADIATION PHYSICS AND CHEMISTRY | 2016年 / 123卷
关键词：
Graphene; Pt nanoparticles; Nanocomposite; Gamma-ray; Surface modification; OXIDE; NANOPARTICLES; CLUSTERS; METALS;
D O I：
10.1016/j.radphyschem.2016.02.019
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 SOS than IPA. Based on the results, formation and deposition mechanisms of Pt nanoparticles were proposed. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：68 / 72
页数：5
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