Investigation of flexible electrodes modified by TiN, Pt black and IrO(x)

TiN, platinum (Pt) black and iridium oxide are introduced to the stimulating sites to improve the performance of the flexible electrode. Low temperature process is used to fabricate the modifying films. TiN is coated on the gold sites by magnetron sputtering while platinum black and iridium oxide ar...

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Published in:Science China. Technological sciences 2011-09, Vol.54 (9), p.2305-2309
Main Authors: Li, Xiaoqian, Pei, Weihua, Tang, Rongyu, Gui, Qiang, Guo, Kai, Wang, Yu, Chen, Hongda
Format: Article
Language:English
Subjects:
Capacitance
Electrodes
Iridium
Magnetron sputtering
Oxides
Phosphates
Platinum
Titanium nitride
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container_title Science China. Technological sciences
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creator Li, Xiaoqian
Pei, Weihua
Tang, Rongyu
Gui, Qiang
Guo, Kai
Wang, Yu
Chen, Hongda
description TiN, platinum (Pt) black and iridium oxide are introduced to the stimulating sites to improve the performance of the flexible electrode. Low temperature process is used to fabricate the modifying films. TiN is coated on the gold sites by magnetron sputtering while platinum black and iridium oxide are coated by electroplating and electrodeposition, respectively. The impedance of the electrode decreases dramatically after modification. The combined analysis of surface morphology and cyclic voltammograms (CV) in phosphate buffer saline (PBS) solution indicates that the modified electrode sites have larger electrode-electrolyte capacitance and smaller faradic resistance than unmodified sites, thus they have smaller electrochemical impedances.
doi_str_mv 10.1007/s11431-011-4436-7
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subjects Capacitance
Electrodes
Iridium
Magnetron sputtering
Oxides
Phosphates
Platinum
Titanium nitride
title Investigation of flexible electrodes modified by TiN, Pt black and IrO(x)
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