Electrochemical Passivation of (100) Silicon in Alkyl Grignard Solutions

2019 ◽  
Vol 19 (3) ◽  
pp. 365-372
Author(s):  
Sri Sai Sivakumar Vegunta ◽  
Johnpeter Ngunjiri ◽  
John C. Flake
Keyword(s):  
Electrochemical Passivation

Study of the solid electrolyte interphase of Li-O2 battery electrolyte by analytical transmission electron microscopy

Microscopy ◽  
2020 ◽  
Vol 69 (4) ◽  
pp. 227-233 ◽  
Author(s):  
Mitsunori Kitta ◽  
Hikaru Sano
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Dissolved Oxygen ◽  
Solid Electrolyte ◽  
Electrochemical Cell ◽  
Surface Film ◽  
Analytical Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Electrochemical Passivation ◽  
Charge Discharge

Abstract Investigation of solid electrolyte interphases (SEIs) on negative electrode surfaces is essential to improve the stable charge-discharge performance of rechargeable lithium-air batteries (Li-O2 batteries). In this study, a direct investigation of SEI films is conducted using analytical transmission electron microscopy (TEM). A thin Cu specimen is prefabricated for TEM observation and is utilised as a model substrate for SEI formation. The electrochemical cell constructed using dissolved oxygen in the electrolyte exhibits a greater electrochemical overpotential during the Li-metal deposition process than that constructed with a pristine electrolyte. This suggests that different electrochemical passivation features occur in each different electrochemical cell. TEM observation confirms that the surface film formed by O2 dissolute electrolyte is a polycrystalline Li2O film with a thickness of ~5 nm, whereas the film formed by the pristine electrolyte is organic-based, amorphous-like and 20–50 nm thick. The dissolved oxygen molecules are more easily reduced than the components of the electrolyte, leading to the formation of Li2O as a stable passivation SEI film, which is expected to exhibit good charge-discharge features during the operation of the Li-O2 battery.

Influence of Chloride on Nanoscale Electrochemical Passivation Processes

2020 ◽  
Vol 124 (17) ◽  
pp. 9289-9304 ◽  
Author(s):  
Katie Lutton ◽  
William H. Blades ◽  
John R. Scully ◽  
Petra Reinke
Keyword(s):  
Electrochemical Passivation

Thermodynamics of chemisorption of sulfur from thiocyanate on nickel during electrochemical passivation

2013 ◽  
Vol 49 (4) ◽  
pp. 444-450 ◽  
Author(s):  
Yu. Ya. Andreev ◽  
T. V. Bobkov ◽  
A. V. Dub ◽  
D. A. Podgornyi
Keyword(s):  
Electrochemical Passivation

Electrochemical passivation of iron alloys and the film characterisation by XPS

2000 ◽  
Vol 42 (10) ◽  
pp. 1709-1724 ◽  
Author(s):  
Santanu Bera ◽  
S. Rangarajan ◽  
S.V. Narasimhan
Keyword(s):  
Iron Alloys ◽  
Electrochemical Passivation

Electrochemical Passivation of Homoepitaxial InP (100) Thin Films for Light Induced Hydrogen Evolution: A Synchrotron Radiation Photoelectron Spectroscopy Study

2019 ◽  
Vol 35 (8) ◽  
pp. 141-150 ◽  
Author(s):  
Andres G. Muñoz ◽  
Christian Heine ◽  
Hagen W. Klemm ◽  
Thomas Hannappel ◽  
Nadine Szabo ◽  
...  
Keyword(s):  
Thin Films ◽  
Synchrotron Radiation ◽  
Hydrogen Evolution ◽  
Photoelectron Spectroscopy ◽  
Spectroscopy Study ◽  
Electrochemical Passivation

Electrochemical passivation of iron in phosphate medium

1993 ◽  
Vol 38 (17) ◽  
pp. 2547-2550 ◽  
Author(s):  
Jaouad Benzakour ◽  
Ahmed Derja
Keyword(s):  
Electrochemical Passivation ◽  
Phosphate Medium

Electrochemical passivation of gallium arsenide surface with organic self-assembled monolayers in aqueous electrolytes

2000 ◽  
Vol 76 (22) ◽  
pp. 3313-3315 ◽  
Author(s):  
Klaus Adlkofer ◽  
Motomu Tanaka ◽  
Heiko Hillebrandt ◽  
Gerald Wiegand ◽  
Erich Sackmann ◽  
...  
Keyword(s):  
Gallium Arsenide ◽  
Self Assembled Monolayers ◽  
Aqueous Electrolytes ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Electrochemical Passivation
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