The shortage of fossil fuel forces the development of novel sustainable energies . Lignocellulosic biomass materials are attractive alternative energy resources because of their high accessibility and renewability . In recent years, hydrogen production technology from the gasification reaction between biomass and steam has attracted the attention of academia and industry because of the efficient utilization of energy from agricultural feedstocks . However, direct utilization of biomass faces difficulties in the collection, transportation, as well as spoilage during storage . To solve these problems mentioned above, biomass is usually converted into biomass-derived biochar through pyrolysis (commonly at 300-400 o C), and these pyrolyzed feedstocks further react with steam to generate hydrogen .