Ammonia decomposition by ruthenium nanoparticles loaded on inorganic electride C12A7:e-

被引：175

作者：

Hayashi, Fumitaka ^{[1
]}

Toda, Yoshitake ^{[1
]}

Kanie, Yoshimi ^{[1
]}

Kitano, Masaaki ^{[2
]}

Inoue, Yasunori ^{[3
]}

Yokoyama, Toshiharu ^{[1
]}

Hara, Michikazu ^{[3
]}

Hosono, Hideo ^{[1
,2
,3
]}

机构：

[1] Tokyo Inst Technol, Frontier Res Ctr, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Tokyo Inst Technol, Mat Res Ctr Element Strategy, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[3] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

CHEMICAL SCIENCE | 2013年 / 4卷 / 08期

关键词：

COX-FREE HYDROGEN; NH3; DECOMPOSITION; DISSOCIATIVE CHEMISORPTION; CATALYSTS; TEMPERATURE; KINETICS; ADSORPTION; NITROGEN; GENERATION; DESORPTION;

D O I：

10.1039/c3sc50794g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The use of ammonia as a hydrogen carrier has received much attention due to its high hydrogen content and liquid state under mild conditions, which could lead to fuel cell applications. This study demonstrates facile ammonia decomposition on ruthenium nanoparticles loaded on inorganic electride, C12A7:e(-). A high turnover frequency (similar to 12 s(-1) at 400 degrees C) and low activation energy (64 kJ mol(-1)) for recombinative N-2 desorption were obtained for Ru/C12A7:e(-). N-2-temperature programmed desorption (N-2-TPD) and kinetic analyses indicate that the high catalytic performance is due to the low work function of chemically stable C12A7:e(-), which enables electron injection to the antibonding orbital of the Ru-N bond formed transiently through the reaction by raising the Fermi level of Ru metal.

引用

页码：3124 / 3130

页数：7

共 56 条

[1] Acetylene cyclotrimerization on supported size-selected Pdn clusters (1≤n≤30):: one atom is enough! [J].