Current-Potential Oscillations on Pyrite Electrodes in Alkaline Sulfide Solution

1998 ◽  
Vol 129 (12) ◽  
pp. 1275
Author(s):  
Hartmut Helms ◽  
Holger Kunz ◽  
Walter Jansen
Keyword(s):  
Potential Oscillations ◽  
Alkaline Sulfide ◽  
Sulfide Solution ◽  
Current Potential

Corrosion behavior of HVOF sprayed hard face coatings in alkaline-sulfide solution

2017 ◽  
Vol 416 ◽  
pp. 69-77 ◽  
Author(s):  
Shenhou Li ◽  
Zhixing Guo ◽  
Ji Xiong ◽  
Yong Lei ◽  
Yuxi Li ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Alkaline Sulfide ◽  
Sulfide Solution

Cu-Doped ZnS Hollow Particle with High Activity for Hydrogen Generation from Alkaline Sulfide Solution under Visible Light

2008 ◽  
Vol 20 (5) ◽  
pp. 1997-2000 ◽  
Author(s):  
Takeo Arai ◽  
Shin-ichiro Senda ◽  
Yoshinori Sato ◽  
Hideyuki Takahashi ◽  
Kozo Shinoda ◽  
...  
Keyword(s):  
Visible Light ◽  
High Activity ◽  
Hydrogen Generation ◽  
Hollow Particle ◽  
Alkaline Sulfide ◽  
Sulfide Solution

Anodic Oxidation of Alkaline Sulfide Solution at a Low Potential

2011 ◽  
Vol 356-360 ◽  
pp. 1367-1370 ◽  
Author(s):  
Ning Zhang ◽  
Wei Qing Han ◽  
Lian Jun Wang
Keyword(s):  
Anodic Oxidation ◽  
Sulfide Ions ◽  
Alkaline Sulfide ◽  
Sulfide Solution

The oxidation of sulfide was investigated at a potential of about -0.1 V, 60 °C and electrolyzation time of 48 h, the sulfide ions were oxidized to sulfur and polysulfide, and the predominant polysulphide was S22-. The behavior of the anodic oxidation was highly dependant on the applied temperature and the concentration of the sulfide ions.

Improved surface and electrical properties of passivated GaSb with less alkaline sulfide solution

2015 ◽  
Vol 40 ◽  
pp. 685-689 ◽  
Author(s):  
Dongyan Tao ◽  
Yu Cheng ◽  
Jingming Liu ◽  
Jie Su ◽  
Tong Liu ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Alkaline Sulfide ◽  
Sulfide Solution

Evaluation of a molybdenum sulfide reference electrode in hot alkaline solutions

TAPPI Journal ◽  
2010 ◽  
Vol 9 (7) ◽  
pp. 35-41
Author(s):  
OUTI A. HYÖKYVIRTA ◽  
TOM E. GUSTAFSSON
Keyword(s):  
Molybdenum Disulfide ◽  
Surface Film ◽  
Reference Electrode ◽  
Exposure Period ◽  
Molybdenum Sulfide ◽  
Alkaline Solutions ◽  
Internal Reference ◽  
Cell Potential ◽  
Pulp Digester ◽  
Alkaline Sulfide

This investigation evaluated the applicability of a molybdenum sulfide reference electrode (MSRE) as an internal reference electrode for use in alkaline sulfide solutions over a range of pulp digester liquors at 170°C. The electrode remained stable during the exposure period of two weeks. The experimentally determined half cell potential of the MSRE is E = -0.91 VSHE. The surface of the MSRE was examined by scanning electron microscope (SEM) and electron spectroscopy for chemical analysis (ESCA) to verify the chemical composition of the thin surface film. Based on ESCA studies, the surface film contained molybdenum disulfide and sodium disulfide. During storage of the specimens, sulfide was partly oxidized to sodium sulfite in air. Next to the metallic molybdenum, a mixed molybdenum disulfide and molybdenum hydroxide layer was detected.

A Small Molecule – Protein Hybrid for Voltage Imaging via Quenching of Bioluminescence

2020 ◽  
Author(s):  
Brittany Benlian ◽  
Pavel Klier ◽  
Kayli Martinez ◽  
Marie Schwinn ◽  
Thomas Kirkland ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Membrane Potential ◽  
Small Molecule ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Live Cells ◽  
Potential Oscillations ◽  
Excitation Light ◽  
Voltage Imaging ◽  
Induced Pluripotent

<p>We report a small molecule enzyme pair for optical voltage sensing via quenching of bioluminescence. This <u>Q</u>uenching <u>B</u>ioluminescent V<u>olt</u>age Indicator, or Q-BOLT, pairs the dark absorbing, voltage-sensitive dipicrylamine with membrane-localized bioluminescence from the luciferase NanoLuc (NLuc). As a result, bioluminescence is quenched through resonance energy transfer (QRET) as a function of membrane potential. Fusion of HaloTag to NLuc creates a two-acceptor bioluminescence resonance energy transfer (BRET) system when a tetramethylrhodamine (TMR) HaloTag ligand is ligated to HaloTag. In this mode, Q-BOLT is capable of providing direct visualization of changes in membrane potential in live cells via three distinct readouts: change in QRET, BRET, and the ratio between bioluminescence emission and BRET. Q-BOLT can provide up to a 29% change in bioluminescence (ΔBL/BL) and >100% ΔBRET/BRET per 100 mV change in HEK 293T cells, without the need for excitation light. In cardiac monolayers derived from human induced pluripotent stem cells (hiPSC), Q-BOLT readily reports on membrane potential oscillations. Q-BOLT is the first example of a hybrid small molecule – protein voltage indicator that does not require excitation light and may be useful in contexts where excitation light is limiting.</p> <p> </p>

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