On November 11, a research group consisting of Professor Kiyoomi Kaneda of the Research Center for Solar Energy Chemistry, Osaka University and Associate Professor Takato Mitsuru of the Graduate School of Basic Engineering efficiently generated hydrogen from hydrosilanes and water, which are industrial wastes. Announced that it has succeeded in developing a gold nanoparticle catalyst.
Hydrogen is considered to be one of the most promising next-generation energies because it does not generate carbon dioxide when burned.As a method for safely transporting hydrogen, hydrogen storage substances (substances that can store and release hydrogen) such as adsorbing to metals have been studied, but hydrosilanes in industrial waste have been attracting attention as hydrogen storage substances. It wasn't.
This time, the research group focused on the potential of hydrosilanes as inexpensive and safe hydrogen storage materials.By developing a highly functional gold nanoparticle catalyst whose structure is controlled in nano units, we have succeeded in extracting hydrogen from water and TMDS and PMHS, which are hydrosilanes of industrial waste, with high efficiency.Furthermore, taking advantage of the solid catalyst, which is easy to separate from the reaction solution, we proposed for the first time in the world that hydrogen generation can be controlled on and off by moving the catalyst in and out of the reaction solution.
This catalyst system does not require any external energy such as heat, and can easily generate a large amount of hydrogen at room temperature and in the atmosphere.In addition, because it is composed of hydrosilane, water, and a catalyst, it has the advantage of being extremely small and lightweight and easy to carry compared to conventional cylinders that store hydrogen by pressurization.
In the future, as a next-generation hydrogen carrier system (portable hydrogen generator) that can easily extract as much hydrogen energy as needed anytime, anywhere, it can be used as a portable power source for emergencies such as disasters and outdoors. It is expected to be put into practical use.
