Tseng, K.-S.K.-S.TsengLIN-CHI CHENKUO-CHUAN HO2020-01-062020-01-062005https://scholars.lib.ntu.edu.tw/handle/123456789/445575This research focuses on the use of a Prussian Blue (PB)-modified optically transparent electrode for sensing hydrogen peroxide (H2O 2). The PB thin films were deposited galvanostatically onto F-doped tin oxide (FTO) glass substrates. Then a reliable and reproducible detection was achieved by exerting a constant bias of -0.2 V (versus Ag/AgCl/saturated KCl) at the PB-modified FTO electrode immersed in an H2O2 solution containing 0.1 M KCl, pH 2. The dynamic range of detection was found to lie between 50 μM and 50 mM, and the sensitivity was ca. 58.1 mA/cm 2 M. But it was also observed that the dissolved oxygen interfered the H2O2 sensing. Better sensing results could be obtained if the solution was pre-purged with N2. To sum up, this study possesses the potential to eliminate the use of costly platinum or glassy carbon in a PB-based H2O2 sensor and may provide the basis for optical sensing. ? 2004 Elsevier B.V. All rights reserved.FTO; H2O 2 sensor; Hydrogen peroxide; Modified electrode; Prussian BlueAmperometric sensors; Carbon; Electrodes; Glass; Modification; Oxygen; Peroxides; Transparency; Amperometric detection; H2O2 sensors; Prussian Blue; Redox states; Hydrogenconference paper10.1016/j.snb.2004.12.0312-s2.0-19744367125https://www.scopus.com/inward/record.uri?eid=2-s2.0-19744367125&doi=10.1016%2fj.snb.2004.12.031&partnerID=40&md5=4c2c9713823f35e8c2ca19b591762ae1