Photochemical deposition of platinum on TiO2 by using poly(vinyl alcohol) as an electron donor and a protecting polymer

被引：12

作者：

Harada, M

Einaga, H

机构：

[1] Nara Womens Univ, Dept Text & apparel Sci, Fac Human Life & Environm, Nara 6308506, Japan

[2] AIST Tsukuba W, Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan

来源：

CATALYSIS COMMUNICATIONS | 2004年 / 5卷 / 02期

关键词：

platinum; TiO2; deposition method; CO photooxidation;

D O I：

10.1016/j.catcom.2003.11.012

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：

Platinum particles were photochemically deposited on TiO2 by using poly(vinyl alcohol) (PVA) as an electron donor and a protecting polymer. TEM and EXAFS studies showed that diameter of Pt particles prepared in H2O solution with PVA was smaller than that prepared in H2O/ethanol mixture with or without PVA, and the Pt particles had each particle diameter between 1.0 and 2.0 nm and good dispersity of particles on TiO2. The Pt/TiO2 catalyst prepared in H2O solution with PVA showed the highest activity for CO photooxidation, and the order of the activity was the same as that of the Pt particle size. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：63 / 67

页数：5

共 26 条

[1]

[Anonymous], EXAFS BASIC PRINCIPL

[2] A NEW PROCEDURE FOR PARTICLE-SIZE DETERMINATION BY EXAFS BASED ON MOLECULAR-DYNAMICS SIMULATIONS [J].