Sonochemical preparation of photocatalyst supporting core-shellstructured nanoparticles and the analysis on their catalytic mechanism

声化学负载核壳结构纳米粒子光催化剂的制备及其催化机理分析

• 批准号: 20760525
• 负责人: MIZUKOSHI Yoshiteru
• 金额: $ 2.83万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760525/
• 关键词: ナノ粒子; 超音波; 合金化; 光触媒; 合金ナノ粒子; 助触媒; コア・シェル構造; 金; パラジウム; 二酸化チタン

Bimetallic nanoparticles consisting of gold and palladium were successfully immobilized on titanium dioxide surface by unique sonochemical reduction method. The photocatalytic activities depended on the inner structure of the immobilized bimetallic particles, in other words, the distribution of the constituent metals in each particle, even with same components. Alloying two or more metals and designing their inner structure were found to provide superior catalyst to the constituent metals.

通过独特的声学还原方法成功地将由黄金和钯组成的双金属纳米颗粒成功固定在二氧化钛表面上。光催化活性取决于固定的双金属颗粒的内部结构，换句话说，即使具有相同的成分，各粒子中成分金属的分布也是如此。发现将两种或多种金属合金设计并设计其内部结构，从而为成分金属提供了优质的催化剂。

项目成果

Visible light responses of sulfur-doped rutile titanium dioxide photocatalysts fabricated by anodic oxidation

• DOI: 10.1016/j.apcatb.2009.05.018
• 发表时间: 2009-09
• 期刊: Applied Catalysis B-environmental
• 影响因子: 22.1
• 作者: Y. Mizukoshi;N. Ohtsu;S. Semboshi;N. Masahashi

Sonochemical immobilization of noble metal nanoparticles on the surface of maghemite: Mechanism and morphological control of the products

• DOI: 10.1016/j.ultsonch.2007.12.007
• 发表时间: 2008-07-01
• 期刊: ULTRASONICS SONOCHEMISTRY
• 影响因子: 8.4
• 作者: Mizukoshi, Yoshiteru;Tsuru, Yasuhiro;Yamamoto, Takao A.
• 通讯作者: Yamamoto, Takao A.

Preparation of hydrogen permeablemembrane using nanoparticles electrophoresis technique

纳米粒子电泳技术制备氢渗透膜

• 发表时间: 2009
• 期刊: Topics in Catalysis 52
• 作者: A. Tominaga、Y. Mizukoshi、O. Nakagoe;S. Tanabe;Aki Tominaga
• 通讯作者: Aki Tominaga

Dependence of photocatalytic activities upon the structures of Au/Pd bimetallic nanoparticles immobilized on TiO2 surface

• DOI: 10.1016/j.apcatb.2009.11.015
• 发表时间: 2010-02
• 期刊: Applied Catalysis B-environmental
• 影响因子: 22.1
• 作者: Y. Mizukoshi;Kazuhisa Sato;T. Konno;N. Masahashi

Structural analyses of Au/Pd bimetallic nanoparticles supported on TiO_2 and their promotion effects for photocatalytic activities

TiO_2负载Au/Pd双金属纳米粒子的结构分析及其对光催化活性的促进作用

• 发表时间: 2009
• 作者: 石野陽祐;木村真晃;日下正広;海津浩一;Yoshiteru Mizukoshi
• 通讯作者: Yoshiteru Mizukoshi