Simple and recyclable ionic liquid based system for the selective decomposition of formic acid to hydrogen and carbon dioxide

被引：39

作者：

Berger, M. E. M. ^{[1
]}

Assenbaum, D. ^{[1
]}

Taccardi, N. ^{[1
]}

Spiecker, E. ^{[2
]}

Wasserscheid, P. ^{[1
]}

机构：

[1] Dept Chem & Bioengn, D-91058 Erlangen, Germany

[2] Ctr Nanoanal & Electron Microscopy, Dept Mat Sci, D-91058 Erlangen, Germany

来源：

GREEN CHEMISTRY | 2011年 / 13卷 / 06期

关键词：

GENERATION; CATALYSIS; ECONOMY; ENERGY;

D O I：

10.1039/c0gc00829j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Exploitation of hydrogen as an energy carrier requires the development of systems for its storage and delivery. Formic acid has been proposed as valuable hydrogen carrier compound, due to its relatively high hydrogen content (53 g L-1), the latter being easily and cleanly released in catalytic reactions under mild conditions (HCOOH -> H-2 + CO2). Ionic liquids are interesting solvents for homogeneous catalyzed formic acid decomposition systems as their extremely low volatility avoids solvent contamination of the produced hydrogen stream. In this paper an outstandingly simple, robust and active catalyst system is presented, namely RuCl3 dissolved in 1-ethyl-2,3-dimethylimidazolium acetate (RuCl3/[EMMIM][OAc]). This system proved to be fully recyclable over 10 times. Turnover frequencies (TOF) of 150 h(-1) and 850 h(-1) were obtained at 80 degrees C and 120 degrees C, respectively.

引用

页码：1411 / 1415

页数：5

共 21 条

[1] Hydrogen Generation at Ambient Conditions: Application in Fuel Cells [J].