scholarly journals Influence of Mixed Electrolytes on HIC Adsorption and Prediction of Chromatographic Elution Profiles

2018 ◽  
Vol 90 (9) ◽  
pp. 1266-1266
Author(s):  
N. Galeotti ◽  
E. Hackemann ◽  
H. Hasse
Keyword(s):  
Mixed Electrolytes ◽  
Chromatographic Elution

scholarly journals Mixed Lithium and Sodium Ion Aprotic DMSO Electrolytes for Oxygen Reduction on Au and Pt Studied by DEMS and RRDE

2021 ◽  
Author(s):  
M. Hegemann ◽  
P. P. Bawol ◽  
A. Köllisch-Mirbach ◽  
H. Baltruschat
Keyword(s):  
Oxygen Reduction ◽  
Product Distribution ◽  
Reduction Reaction ◽  
Mixed Electrolytes ◽  
Peroxide Formation ◽  
Pt Electrode ◽  
Rate Determining Step ◽  
Differential Electrochemical Mass Spectrometry ◽  
Redox Couples ◽  
Pt Electrodes

AbstractIn order to advance the development of metal-air batteries and solve possible problems, it is necessary to gain a fundamental understanding of the underlying reaction mechanisms. In this study we investigate the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER, from species formed during ORR) in Na+ containing dimethyl sulfoxide (DMSO) on poly and single crystalline Pt and Au electrodes. Using a rotating ring disk electrode (RRDE) generator collector setup and additional differential electrochemical mass spectrometry (DEMS), we investigate the ORR mechanism and product distribution. We found that the formation of adsorbed Na2O2, which inhibits further oxygen reduction, is kinetically favored on Pt overadsorption on Au. Peroxide formation occurs to a smaller extent on the single crystal electrodes of Pt than on the polycrystalline surface. Utilizing two different approaches, we were able to calculate the heterogeneous rate constants of the O2/O2− redox couple on Pt and Au and found a higher rate for Pt electrodes compared to Au. We will show that on both electrodes the first electron transfer (formation of superoxide) is the rate-determining step in the reaction mechanism. Small amounts of added Li+ in the electrolyte reduce the reversibility of the O2/O2− redox couples due to faster and more efficient blocking of the electrode by peroxide. Another effect is the positive potential shift of the peroxide formation on both electrodes. The reaction rate of the peroxide formation on the Au electrode increases when increasing the Li+ content in the electrolyte, whereas it remains unaffected on the Pt electrode. However, we can show that the mixed electrolytes promote the activity of peroxide oxidation on the Pt electrode compared to a pure Li+ electrolyte. Overall, we found that the addition of Li+ leads to a Li+-dominated mechanism (ORR onset and product distribution) as soon as the Li+ concentration exceeds the oxygen concentration. Graphical abstract

Preparation of safe water–lipid mixed electrolytes for application in ion capacitor

2020 ◽  
Author(s):  
Miaofeng Huang ◽  
Aihua Tang ◽  
Zhenyin Wang ◽  
Jingkun Shi ◽  
Xiaoping Jiang ◽  
...  
Keyword(s):  
Mixed Electrolytes ◽  
Safe Water

Electrical Conductivity of Mixed Electrolytes: Modeling within the Mean Spherical Approximation

2009 ◽  
Vol 113 (25) ◽  
pp. 8670-8674 ◽  
Author(s):  
Gaëlle M. Roger ◽  
Serge Durand-Vidal ◽  
Olivier Bernard ◽  
Pierre Turq
Keyword(s):  
Electrical Conductivity ◽  
Spherical Approximation ◽  
Mean Spherical Approximation ◽  
Mixed Electrolytes ◽  
The Mean

scholarly journals Aging Variation of Magnesium Redox Properties in Ionic Liquid-Grignard Reagent Mixed Electrolytes

2019 ◽  
Vol 70 (4) ◽  
pp. 210-214
Author(s):  
Atsushi KITADA ◽  
Yuu KANG ◽  
Kazuhiro FUKAMI ◽  
Kuniaki MURASE
Keyword(s):  
Ionic Liquid ◽  
Grignard Reagent ◽  
Redox Properties ◽  
Mixed Electrolytes

Dialkoxyethane—propylene carbonate mixed electrolytes for lithium secondary batteries

1984 ◽  
Vol 13 (4) ◽  
pp. 261-271 ◽  
Author(s):  
Shin-Ichi Tobishima ◽  
Jun-Ichi Yamaki ◽  
Akihiko Yamaji ◽  
Takeshi Okada
Keyword(s):  
Propylene Carbonate ◽  
Mixed Electrolytes ◽  
Lithium Secondary Batteries
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