[15a-421-1~12] 9.2 Nanowires and Nanoparticles

[15a-421-6] Hydrogen generation by the reaction of Si nanopowder with water in neutral pH region

〇Shunta Fujie¹, Yuki Kobayashi¹, Kentaro Imamura¹, Hikaru Kobayashi¹ (1.ISIR, Osaka Univ.)

Keywords:X-ray photoelectron spectroscopy, thermogravitmetry, hydrogen water

Nowadays hydrogen attracts much interest concerning elimination of Reactive Oxygen Species (ROS). We have developed a method of hydrogen generation by the reaction of Si nanopowder with water. We have succeeded in generation of 300 mL H₂ by the reaction of 1g nanopowder with pH 8.3 water at 37.0℃,which volume corresponds to that included in 17L hydrogen-saturated water. From analysis of the XPS spectra and the thermogravimetric data, an increased thickness of the oxide layer well corresponds to the generated hydrogen volume.