▎ 摘　　要

NOVELTY - Catalyst comprises: a porous support; platinum supported in pores of the porous support; and palladium mixed with the platinum and supported in the pores. USE - The catalyst for synthesis of hydrogen, is used for preparing hydrogen (claimed). ADVANTAGE - While mixing platinum and palladium are mixed and supported in the porous support, the catalyst has significantly improved dehydrogenation activity even at a low temperature, so that hydrogen can be effectively obtained from a liquid organic hydrogen storage. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of preparing hydrogen, involving mixing the catalyst and a liquid organic hydrogen carrier (LOHC), and performing a dehydrogenation reaction after the mixing.