CO2 methanation property of Ru nanoparticle-loaded TiO2 prepared by a polygonal barrel-sputtering method

被引：258

作者：

Abe, Takayuki ^{[1
]}

Tanizawa, Masaaki ^{[1
]}

Watanabe, Kuniaki ^{[1
]}

Taguchi, Akira ^{[1
]}

机构：

[1] Toyama Univ, Hydrogen Isotope Res Ctr, Toyama 9308555, Japan

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2009年 / 2卷 / 03期

关键词：

CARBON-DIOXIDE; SURFACE MODIFICATION; ROOM-TEMPERATURE; HYDROGENATION; CATALYSTS; TITANIA; FTIR;

D O I：

10.1039/b817740f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly dispersed Ru nanoparticles loaded on a TiO2 support (Ru/TiO2(B)), which affects the hydrogenation of CO2 to CH4 (methanation), were prepared by employing a "dry" modification method using a barrel-sputtering instrument. The loaded Ru nanoparticles exhibited a narrow particle-size distribution with a mean diameter of ca. 2.5 nm. Methanation of CO2 on the Ru/TiO2(B) catalyst produced a 100% yield at ca. 160 degrees C, which is more than 200 degrees C below that required for Ru/TiO2 prepared by a conventional "wet" impregnation method. In addition, the methanation reaction over Ru/TiO2(B) proceeded at temperatures as low as room temperature with a reaction rate of 0.04 mu mol min(-1) g(-1).

引用

页码：315 / 321

页数：7

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