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Cover Picture: Efficient Catalytic Decomposition of Formic Acid for the Selective Generation of H 2 and H/D Exchange with a Water‐Soluble Rhodium Complex in Aqueous Solution (ChemSusChem 10/2008)
Author(s) -
Fukuzumi Shunichi,
Kobayashi Takeshi,
Suenobu Tomoyoshi
Publication year - 2008
Publication title -
chemsuschem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.200890028
Subject(s) - rhodium , formic acid , chemistry , aqueous solution , catalysis , hydrogen , hydride , deuterium , decomposition , inorganic chemistry , organic chemistry , physics , quantum mechanics
The cover picture shows a scheme for the efficient rhodium‐catalyzed evolution of H 2 or D 2 from formic acid (HCOOH), a substance produced naturally by ants. The use of hydrogen as an environmentally benign secondary energy resource has attracted much attention, however, high‐density storage and safe transportation of gaseous hydrogen remain problematic. An approach that can contribute also to cut carbon dioxide emissions is the use of CO 2 as hydrogen carrier to produce formic acid, a water‐soluble liquid which is easy to store and carry. In their Full Paper on page 827 ff., S. Fukuzumi et al. describe how HCOOH is efficiently and selectively decomposed to produce H 2 and CO 2 in 1:1 ratio without the formation of CO in aqueous solution at 298 K catalyzed by the water‐soluble rhodium aqua complex [Rh III (Cp*)(bpy)(H 2 O)]SO 4 . H 2 evolution occurs by formation of the hydride complex (RhH), which undergoes efficient H/D exchange with deuteron in D 2 O to form the deuteride complex (RhD) in competition with the reaction with deuteron to yield D 2 and HD.