[9p-N107-1~14] 6.4 Thin films and New materials

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-N107-13] Control of optical, electrical and thermal properties of the thin films by metal-semiconductor phase change caused by hydro-/dehydrogenation reactions (8): Pd-catalyzed Mg and Y–Mg alloy films controlled by electrochemical methods

〇Shusei Nagane¹, Minseok Kim¹, Yuki Oguchi¹, Yuzo Shigesato¹ (1.Aogaku Univ.)

Keywords:

electrochemical method,swichable mirror material,hydro-/dehydrogenation

To realize a hydrogen-based energy society, the development of materials capable of reversibly absorbing and releasing hydrogen is of great importance. Among them, magnesium (Mg) has received considerable attention due to its high theoretical hydrogen storage capacity and abundance. However, its poor thermodynamic and kinetic properties hinder practical application. In this study, Mg and Y–Mg alloy thin films were prepared by DC magnetron sputtering. In addition, palladium (Pd) was deposited on the surface as a catalyst for the hydro-/dehydrogenation reactions and as a protective layer against oxidation. The hydro-/dehydrogenation behavior of the films was characterized using cyclic voltammetry (CV) and in-situ optical transmittance measurements in 1 mol/L KOH solution. The structure was also evaluated by X-ray diffraction (XRD).