The catalyst for the decomposition of formic acid may be dissolved in, for example, an organic solvent, but when water alone is used as the solvent, undesirable effects on the environment can be reduced even more, so it is expected that the catalyst will be increasingly used as a novel ecological technology in various industrial applications. Moreover, the catalyst can also contribute to resource savings because of its good turnover efficiency. The catalyst can be used in, for example, formic acid fuel cells and the like as a catalyst for the decomposition of formic acid. Furthermore, the applications of the catalyst for the decomposition of formic acid are not limited and the catalyst can be used in every technical field in which a supply of hydrogen (H2) is needed.
Hydrogen (H2) is used in many different applications, such as the synthesis of various substances, reduction, hydrodesulfurization of petroleum, and hydrogenolysis, and is needed in every industrial field. For example, fuel cells, which have been attracting attention in recent years, are capable of supplying electricity continuously and efficiently when reactants such as hydrogen and oxygen are supplied externally thereto.