Surface-enhanced IR Absorption Effect of Pt and Ru Nanofilms Fabricated by All-wet Processes

Abstract

Economical and practicable all-wet processes have been developed to fabricate virtually pinhole-free Pt and Ru nanofilms for attenuate-total-reflection (ATR) surface-enhanced IR absorption spectroscopy (SEIRAS). The processes incorporated an initial chemical deposition of Au nanofilm on the basal plane of a Si prism with a subsequent electrodeposition of desired overlayers. Pt and Ru nanofilms thus obtained exhibit unprecedented SEIRA effect with unipolar and normally directed absorption bands for CO adlayers. This versatile strategy opens a wide opportunity for extending ATR-SEIRAS to explore surface adsorption and reaction involved in electrocatalysis.

Key words: surface-enhanced infrared absorption effect, Pt and Ru nanofilm, all-wet fabrication, electrocatalysis, carbon monoxide

Cite this article

YAN Yan-Gang, LI Qiao-Xia, HUO Sheng-Juan, SUN Ying-Na, CAI Wen-Bin*. Surface-enhanced IR Absorption Effect of Pt and Ru Nanofilms Fabricated by All-wet Processes[J]. Acta Chimica Sinica, 2005, 63(6): 545-549.

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