Rapid start-up of carbon-free H2 production by ammonia oxidative decomposition over Co/Ce0.5Zr0.5O2 with microwave irradiation

作者：Takahiro Matsunaga, Sachika Hayashi, Hiroshi Yamada, Katsutoshi Sato, Katsutoshi Nagaoka · 发表于：iScience · 年份：2024 · DOI：10.1016/j.isci.2024.110452 · 被引用次数：5 · 研究领域：Ammonia Synthesis and Nitrogen Reduction、Catalytic Processes in Materials Science、Catalysts for Methane Reforming

Hydrogen is a promising combustion improver for use with ammonia fuels, but a cost-effective method for easily producing hydrogen from ammonia at a high rate has yet to be developed. Here, we show that microwave irradiation instantly triggers oxidative decomposition of ammonia over a Co/Ce 0.5 Zr 0.5 O 2 catalyst to produce hydrogen at a high rate. The microwave irradiation rapidly heats the inside of the catalyst from room temperature to the catalytic auto-ignition temperature of ammonia, thus initiating exothermic oxidative decomposition of ammonia to produce hydrogen. This method provides a highly efficient means of producing hydrogen for potential use in a carbon-free, ammonia-fueled power generation process.