Electrochemical reduction of oxygen on thin-film Pt electrodes in acid solutions

2008 ◽  
Vol 53 (20) ◽  
pp. 5873-5880 ◽  
Author(s):  
Ave Sarapuu ◽  
Aarne Kasikov ◽  
Timo Laaksonen ◽  
Kyösti Kontturi ◽  
Kaido Tammeveski
1997 ◽  
Vol 42 (5) ◽  
pp. 893-897 ◽  
Author(s):  
K. Tammeveski ◽  
T. Tenno ◽  
J. Claret ◽  
C. Ferrater

2001 ◽  
Vol 3 (8) ◽  
pp. 446-450 ◽  
Author(s):  
Ave Sarapuu ◽  
Kaido Tammeveski ◽  
Toomas T. Tenno ◽  
Väino Sammelselg ◽  
Kyösti Kontturi ◽  
...  

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1433
Author(s):  
Esther Tanumihardja ◽  
Douwe S. de Bruijn ◽  
Rolf H. Slaats ◽  
Wouter Olthuis ◽  
Albert van den Berg

A ruthenium oxide (RuOx) electrode was used to monitor contractile events of human pluripotent stem cells-derived cardiomyocytes (hPSC-CMs) through electrical impedance spectroscopy (EIS). Using RuOx electrodes presents an advantage over standard thin film Pt electrodes because the RuOx electrodes can also be used as electrochemical sensor for pH, O2, and nitric oxide, providing multisensory functionality with the same electrode. First, the EIS signal was validated in an optically transparent well-plate setup using Pt wire electrodes. This way, visual data could be recorded simultaneously. Frequency analyses of both EIS and the visual data revealed almost identical frequency components. This suggests both the EIS and visual data captured the similar events of the beating of (an area of) hPSC-CMs. Similar EIS measurement was then performed using the RuOx electrode, which yielded comparable signal and periodicity. This mode of operation adds to the versatility of the RuOx electrode’s use in in vitro studies.


2010 ◽  
Vol 55 (17) ◽  
pp. 4902-4908 ◽  
Author(s):  
Amandine Cournet ◽  
Mathieu Bergé ◽  
Christine Roques ◽  
Alain Bergel ◽  
Marie-Line Délia

2020 ◽  
pp. 43-48
Author(s):  
S.P. Javadova ◽  

Due to the unique properties of metal dichalcogenides, they are wide used in various fields of nano- and optoelectronics. Bi2Se3 is one of the promising n-type semiconductor materials belonging to the Av – Bvı group, with a band gap of 0.3 eV. To obtain these compounds by co-electrodeposition, we study the electroreduction of the initial components separately. Therefore, the study is devoted to the electrochemical reduction of selenite ions from the ethylene glycol solution. By drawing cyclic and linear polarization curves on Pt electrodes, the kinetics, the mechanism of the process, and the influence of various factors on the electroreduction of selenite ions are studied. Using the obtained data on the influence of temperature, the effective activation energy was calculated by the Gorbachov method. The calculation results show that the electroreduction of selenite ions from ethylene glycol is accompanied by electrochemical kinetics closer to diffusion


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