A Multifunctional Thin Film Au Electrode Surface Formed by Consecutive Electrochemical Reduction of Aryl Diazonium Salts

Langmuir ◽  
2009 ◽  
Vol 25 (5) ◽  
pp. 3282-3288 ◽  
Author(s):  
Jason C. Harper ◽  
Ronen Polsky ◽  
David R. Wheeler ◽  
DeAnna M. Lopez ◽  
Dulce C. Arango ◽  
...  
Keyword(s):  
Thin Film ◽  
Electrochemical Reduction ◽  
Electrode Surface ◽  
Diazonium Salts ◽  
Au Electrode

Features of electrochemical reduction of silk fibroin in the presence of phosphate tricalcium in the form of nanocating

2021 ◽  
pp. 2150476
Author(s):  
Khakkulov Jakhongir Mardonovich ◽  
Kholmuminov Abdufatto Akhatovich ◽  
Temirov Zokir Shukurulloevich
Keyword(s):  
Shear Flow ◽  
Electrochemical Reduction ◽  
Silk Fibroin ◽  
Tricalcium Phosphate ◽  
Electrode Surface ◽  
Newtonian Flow ◽  
Phosphate Ions

The possibilities of movement and electrochemical reduction of fibroin macroions in the presence of tricalcium phosphate ions in the form of a nanocoating during electrolysis have been studied. The manifestation of a non-Newtonian flow of a mixture of macroions and ions in a shear flow, the conditions for their electrochemical reduction in the form of a nanocoating with uniform morphology, and thickness on the electrode surface are revealed. It was found that the excess ions in the mixture and the uneven relief of the electrode surface contribute to the formation of a nanocoating with an inhomogeneous and uneven thickness.

Current Oscillation during Simultaneous Reduction of Tin(II) ions, Nitrate, and Nitrobenzene at Au Electrode

2019 ◽  
Author(s):  
Masayuki Kurohagi ◽  
Yoshiharu Mukouyama ◽  
Shuji Nakanishi ◽  
Shinji Yae
Keyword(s):  
Electrode Surface ◽  
Nitrate Reduction ◽  
Marangoni Effect ◽  
Current Oscillation ◽  
Optical Reflectance ◽  
Simultaneous Reduction ◽  
Au Electrode ◽  
Main Current ◽  
A Current

#AiMES2018, Z01 General Student Poster Session.This is a slightly revised version of our presentation at AiMES 2018 in Cancun, Mexico on October 2, 2018 6:00PM (Abstract MA2018-02 2086).We have reported that NO3- is reduced efficiently at an Au electrode in the presence of Sn2+ though Au is not an excellent electrocatalyst for the reduction, and also that a nitrobenzene (NB) droplet put on the electrode moves like amoeba due to a Marangoni effect (J. Electrochem. Soc., 165, H473 (2018)). The motion occurs because Sn2+, NO3-, and NB are simultaneously reduced at the electrode. Recently, we have found that the simultaneous reduction shows a current oscillation. This present study investigates how the simultaneous reduction causes the oscillation. The nitrate reduction, which is the main current-producing reaction, includes an N-NDR characteristic that is essential for the appearance of the oscillation. The N-NDR characteristic is related to the reduction of NB to aniline. The oscillation is accompanied with a change in the optical reflectance at the electrode surface, which is attributed to a change in the amount of Sn(OH)2 precipitate near the electrode.

Electrochemical Reduction Process of Sb(III) on Au Electrode Investigated by CV and EIS

2009 ◽  
Vol 156 (3) ◽  
pp. D84 ◽  
Author(s):  
Fei-Hui Li ◽  
Wei Wang ◽  
Jian-Ping Gao ◽  
Shuang-Yuan Wang
Keyword(s):  
Electrochemical Reduction ◽  
Reduction Process ◽  
Au Electrode

scholarly journals Surface Electrochemistry of Uranium Dioxide in Acidic Hydrogen Peroxide Solutions

2012 ◽  
Vol 1475 ◽  
Author(s):  
Mayuri Razdan ◽  
David Hall ◽  
David W. Shoesmith
Keyword(s):  
Hydrogen Peroxide ◽  
Surface Layer ◽  
Electrochemical Reduction ◽  
Surface Diffusion ◽  
Uranium Dioxide ◽  
Electrode Surface ◽  
Surface Electrochemistry ◽  
Ph Range ◽  
Acidic Hydrogen

ABSTRACTThe electrochemical reduction of H2O2 on SIMFUEL was investigated over the pH range 1 to 4. The mechanism at pH 4 is known to occur on UV species incorporated into a surface layer of UIV1-2xUV2xO2+x. However, below pH 3, reduction occurs on an adsorbed UVO2(OH) state which is unstable and oxidizes to insulating UVI before dissolving as UO22+. Both schemes are observed at intermediate pH’s. The presence of both low and high acidic regions at the electrode surface is determined by the combination of peroxide concentration, bulk pH and the surface diffusion conditions.

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