Polyol Synthesis of Size-Controlled Rh Nanoparticles and Their Application to Photocatalytic Overall Water Splitting under Visible Light

被引：75

作者：

Ikeda, Takahiro ^{[1
,2
]}

Xiong, Anke ^{[3
]}

Yoshinaga, Taizo ^{[1
,2
]}

Maeda, Kazuhiko ^{[3
,4
]}

Domen, Kazunari ^{[3
]}

Teranishi, Toshiharu ^{[2
]}

机构：

[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan

[2] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[3] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[4] Japan Sci & Technol Agcy JST, Precursory Res Embryon Sci & Technol PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 06期

关键词：

(GA1-XZNX)(N1-XOX) SOLID-SOLUTION; MIXED-OXIDE NANOPARTICLES; SINGLE-CRYSTAL SURFACES; RHODIUM NANOPARTICLES; PARTICLE-SIZE; HYDROGEN ELECTROCHEMISTRY; CORE/SHELL NANOPARTICLES; GOLD NANOPARTICLES; METAL NANOCRYSTALS; FERMI-LEVEL;

D O I：

10.1021/jp305968u

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：

A gradual size control of poly(N-vinyl-2-pyrrolidone)-protected Rh nanoparticles (PVP-Rh NPs) was successfully achieved in the range of 1.7-7.7 nm by tuning the pH value and the reaction temperature of the ethylene glycol (EG) solution; smaller NPs were formed at higher pH and at higher temperature. This trend can be interpreted by the change in the nucleation rate caused by tuning the pH value and/or the temperature of the solution. When the size tuned PVP-Rh NPs were applied for use as cocatalysts in a photocatalyst (solid solution of GaN and ZnO (Ga1-xZnx)(N1-xOx)) for overall water splitting under visible light, it was demonstrated that smaller Rh cores gave higher activity than the larger ones.

引用

页码：2467 / 2473

页数：7

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