Electrochemically Growth of Pd Doped ZnO Nanorods on QCM for Room Temperature VOC Sensors
Kösemen, Zühal Alpaslan
Öztürk, Zafer Ziya
MetadataShow full item record
CitationÖZTÜRK, Sadullah, Arif KÖSEMEN, Zühal Alpaslan KÖSEMEN, Necmettin KILINÇ, Zafer Ziya ÖZTÜRK & Michele PENZA. "Electrochemically Growth of Pd Doped ZnO Nanorods on QCM for Room Temperature VOC Sensors". Sensors and Actuators B: Chemical, 222 (2016): 280-289.
Pristine and various palladium (Pd) doped ZnO nanorods have been synthesized on the quartz crystalmicrobalance (QCM) for volatile organic compound (VOCs) sensors at room temperature. The dopingconcentrations were varied from 0 mol% to 2.5 mol% by using electrochemical deposition method. Thediameters of the fabricated nanorods were in the range of 100–200 nm, and were increased with Pddoping. The tested VOCs included alcohols (ethanol, methanol, isopropyl), ester (ethyl acetate), aromatic(toluene, xylene), ketone (acetone) and chloroform in the different concentrations. The results indicatedthat the sensitivity of the sensing materials was enhanced with the increasing Pd doping concentrationsexcept for the acetone and chloroform. The undoped ZnO nanorod sensor showed higher sensor responseagainst to acetone and chloroform while exposing high concentration of two analytes due to the absorb-ing/adsorbing mechanism. All undoped and Pd doped nanorods sensors showed the highest sensitivityto xylene.