[15p-2K-1~14] 1.4 Energy conversion, storage, resources and environment

[15p-2K-8] Hydrogen production from formic acid decomposition with TiO₂-supported AgPd@Pd nanocatalysts synthesized by microwave heating in aqueous solution

〇Masashi Hattori¹, Daisuke Shimamoto², Hiroki Ago¹, Masaharu Tsuji³ (1.Institute for Materials Chemistry and Engineering, Kyushu Univ., 2.Department of Energy and Material Sciences, Kyushu Univ., 3.Research and education center of carbon resources, Kyushu Univ.)

Keywords:nanocatalyst,hydrogen generation from formic acid decomposition

For realization of mobile hydrogen energy system, a technique to extract H₂ instantly from liquid fuels on a small scale must be developed. Formic acid has attracted attention as a liquid fuel for use in hydrogen fuel cells because it has high energy density, it can be handled safely, and it is promising as a primal product in artificial photosynthesis. Nevertheless, few reports have described solid catalysts that are active for hydrogen production from formic acid at room temperature without Ag-Pd heterogeneous catalysts. We previously reported AgPd@Pd core–shell catalysts formed on TiO₂ nanoparticles show strongly catalytic activity than that of bare Ag@Pd core-shell catalysts. Here, AgPd@Pd/TiO₂ nanocatalysts prepared under MW heating in aqueous solution for suppressing the alloying of Ag core and Pd, which deactivate Ag@Pd core–shell catalysts. The best hydrogen production rate was obtained using Ag₉₃Pd₇@Pd/TiO₂; 46.03 L/gh. This is the best catalytic performance ever reported in the all heterogeneous catalyst.