✦ LIBER ✦

Catalytic activity of a Ag thin film activated by surface acoustic waves generated on different ferroelectric substrates

✍ Scribed by Yukihisa Watanabe; Yasunobu Inoue; Kazunori Sato

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 263 KB
Volume: 244
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00938-z

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✦ Synopsis

Poled ferroelectric single crystals of 128 ° Y-cut X-propagation LiNbO 3, 36 ° Y-cut X-propagation LiNbO 3, and 41 ° Y-cut X-propagation LiTaO 3 with different electromechanical coupling coefficients were employed as a catalyst substrate for Rayleigh and shear-horizontal leaky surface acoustic waves (SAWs). Application of the SAWs caused considerable increases in the catalytic activities for ethanol oxidation of 1.5-50 nm thin film Ag catalysts deposited on the SAW propagation path, and higher activation of the catalyst was brought about by ferroelectric crystals with a higher mechanical coupling coefficient.

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