Low Temperature Ammonia Cracking for Hydrogen Production by Layered Double Hydroxide-Based Nickel Catalysts

Abstract In this work, various Ni catalysts were tested in the ammonia decomposition for hydrogen generation. Traditional catalyst synthesis methods such as incipient wetness impregnation (IWI), precipitation deposition (PD), wetness impregnation (WI) and commercial catalysts were compared with a Nickel catalyst prepared from a Ni layered double hydroxide (LDH) precursor. The catalysts were characterized by various methods including XRD, XPS, XRF, CO-pulse chemisorption, N 2 -physisorption, Rama