CO Gas-Induced Resonance Frequency Shift of ZnO-Functionalized Microcantilever in Humid Air

Lia Aprilia, Ratno Nuryadi, Dwi Gustiono, Nurmahmudi, Arief Udhiarto, Djoko Hartanto, Brian Yuliarto, Makoto Hosoda, Yoichiro Neo, Hidenori Mimura

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7 Citations (Scopus)

Abstract

Resonance frequency shift of a zinc oxide- (ZnO-) functionalized microcantilever as a response to carbon monoxide (CO) gas has been investigated. Here, ZnO microrods were grown on the microcantilever surface by a hydrothermal method. The measurement of resonance frequency of the microcantilever vibrations due to the gas was carried out in two conditions, that is, gas flow with and without air pumping into an experiment chamber. The results show that the resonance frequency of the ZnO-functionalized microcantilever decreases because of CO in air pumping condition, while it increases when CO is introduced without air pumping. Such change in the resonance frequency is influenced by water vapor condition, and a possible model based on water-CO combination was proposed.

Original languageEnglish
Article number4824607
JournalJournal of Nanomaterials
Volume2017
DOIs
Publication statusPublished - 1 Jan 2017

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