NMR spectroscopic evidence for an intermediate of formic acid in the water-gas-shift reaction

被引：47

作者：

Yoshida, K ^{[1
]}

Wakai, C ^{[1
]}

Matubayasi, N ^{[1
]}

Nakahara, M ^{[1
]}

机构：

[1] Kyoto Univ, Chem Res Inst, Uji, Kyoto 6110011, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2004年 / 108卷 / 37期

关键词：

D O I：

10.1021/jp047086t

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The water-gas-shift (WGS) reaction (CO + H2O reversible arrow CO2 + H-2) is investigated in connection to formic acid. Using NMR spectroscopy, the reversible decomposition pathways of formic acid to both sides of the WGS reaction are studied in hot water at 240-260 degreesC. This reversibility strongly suggests that formic acid exists as an intermediate in the WGS reaction, and it is indeed demonstrated that carbon monoxide is treated in hot water to produce formic acid. The present result enables us to generate and store hydrogen in the liquid form of formic acid and to transform formic acid to hydrogen in water by tuning the thermodynamic conditions.

引用

页码：7479 / 7482

页数：4

共 19 条

[1] Role of water in formic acid decomposition [J].