A17 超音波還元法で調製したパラジウムナノ粒子からなる水素透過薄膜の作製と評価(口頭発表)

概要

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Stable supply of pure hydrogen is indispensable for practical uses of fuel cells, which are one of the most promising solutions to energy and environmental problems. The high performance hydrogen perm-selective membrane is one of the key materials for solution procedures. Some researchers reported that membranes which were made of Pd or its alloy had high perm-selectivity for hydrogen. Thinner and denser membranes are required because of higher permeance rate of H_2. In this work, Pd nanoparticles were prepared with sonochemical reduction technique, which had lower than 10nm in diameter. The nanoparticles were precipitated on anodic oxidation alumina disc, and then the perm-selective membranes were created successfully using electrophoresis technique. Permeances of H_2 were measured with a closed circulation system at room temperature. The membranes made of nanoperticles which were prepared by ultrasonic reduction showed high perm-selectivities for H_2 at room temperature. So the nanoparticles preparation method is appropriated to this membrane creation method.
日本ソノケミストリー学会の論文
2008-12-05