[1F06-1F10] Hydrogen production, Energy carriers, CCU(1)

1:15 PM - 1:30 PM JST(4:15 AM - 4:30 AM UTC)Japanese

[1F07] Formic acid synthesis by carbon dioxide hydrogenation using Pd-encapsulated high entropy oxide

○Yuki Shimada¹, Kohsuke Mori¹, Hiromi Yamashita¹ (1. Osaka University)

Keywords:

high-entropy oxide,formic acid,hydrogen storage

In this study, we developed a catalyst in which the active metal Pd is encapsulated in a high-entropy oxide (HEO) consisting of five or more constituent elements. This catalyst suppresses the aggregation of Pd even at 600°C in a hydrogen atmosphere, and furthermore, it exhibits higher activity in the synthesis of formic acid by hydrogenation of carbon dioxide than a conventional Pd-impregnated catalyst. It also exhibits higher activity than a catalyst in which Pd is similarly encapsulated in an oxide of a single constituent element, which is attributed to high-entropy effect.