Design of Nano Metal Catalysts Using Single-site Photocatalysts

使用单中心光催化剂设计纳米金属催化剂

• 批准号: 20360363
• 负责人: YAMASHITA Hiromi
• 金额: $ 11.73万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360363/
• 关键词: シングルサイト光触媒; 光触媒; 金属触媒; ナノ粒子; ゼオライト; メソポーラスシリカ; マイクロ波; 薄膜; メソポーラス; マイクロ波照射; 紫外線照射; 金属ナノ粒子; 選択酸化; 金属ナノ触媒; 光析出; メソ多孔体; 酸化チタン

A novel method to prepare the nano-sized metal catalysts is proposed. Mesoporous silicas or zeolites containing highly dispersed titanium oxide species (single-site photocatalysts) can act as the platform to generate highly dispersed metal particles. Characterization by XAFS, CO adsorption, and TEM analyses revealed that the size-controlled metal particles were obtained. These nano-sized metal catalysts are useful as efficient catalysts for various reactions such as NO reduction, H_2O_2 formation from H_2 and O_2, etc. The present technique using single-site photocatalysts make a great contribution to minimize the amount of precious metal materials.

提出了一种制备纳米金属催化剂的新方法。含有高度分散的氧化钛物质（单位点光催化剂）的介孔二氧化硅或沸石可以充当产生高度分散的金属颗粒的平台。通过XAFS、CO吸附和TEM分析表明，得到了尺寸可控的金属颗粒。这些纳米金属催化剂可作为多种反应的有效催化剂，如NO还原、H_2和O_2生成H_2O_2等。本技术使用单活性中心光催化剂，为减少贵金属材料的用量做出了巨大贡献。

项目成果

Application of Microwave-Assisted Deposition for the Synthesis of Noble Metal Particles on Ti-Containing Mesoporous Silica

• DOI: 10.1007/s10562-009-9861-x
• 发表时间: 2009-01
• 期刊: Catalysis Letters
• 影响因子: 2.8
• 作者: S. Shironita;T. Takasaki;T. Kamegawa;K. Mori;H. Yamashita

A pH-Induced Size Controlled Deposition of Colloidal Ag Nanoparticles on Alumina Support for Catalytic Application

• DOI: 10.1021/jp907277g
• 发表时间: 2009-10-01
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Mori, Kohsuke;Kumami, Akihito;Yamashita, Hiromi
• 通讯作者: Yamashita, Hiromi

Application of microwave to the synthesis of nanosized metal and alloy catalysts on titanium dioxide supports

• DOI: 10.1088/1742-6596/165/1/012039
• 发表时间: 2009-05
• 作者: S. Shironita;T. Takasaki;T. Kamegawa;K. Mori;H. Yamashita

マイクロ波を利用した新規金属ナノ粒子担持法の開発

开发利用微波负载金属纳米粒子的新方法

• 发表时间: 2009
• 作者: 白仁田沙代子;高崎智也;亀川孝;森浩亮;大道徹太郎;山下弘巳
• 通讯作者: 山下弘巳

Cu/BaO/La2O3 catalyst for the efficient simultaneousremoval of Nox and carbon particulate

Cu/BaO/La2O3 催化剂可同时高效去除氮氧化物和碳颗粒

• 发表时间: 2008
• 作者: Koji Matsumoto;Takanori Takeno;Hiroyuki Miki;H. Yamashi ta
• 通讯作者: H. Yamashi ta