Conductance of tetraalkylammonium salts in propylene carbonate at 25�C

1978 ◽  
Vol 7 (8) ◽  
pp. 631-638 ◽  
Author(s):  
Zenon Pawlak ◽  
R. A. Robinson ◽  
Roger G. Bates
Keyword(s):  
Propylene Carbonate ◽  
Tetraalkylammonium Salts

Effects of salts on the kinetics of oxidation of alkenes by thallic salts in aqueous solutions

1981 ◽  
Vol 46 (3) ◽  
pp. 693-700 ◽  
Author(s):  
Milan Strašák ◽  
Jaroslav Majer
Keyword(s):  
Aqueous Solutions ◽  
Phase Transfer ◽  
Heterogeneous Reaction ◽  
Qualitative Model ◽  
Kinetic Effect ◽  
Tetraalkylammonium Salts ◽  
Reaction Conditions ◽  
Kinetics Of Oxidation ◽  
Kinetics Of ◽  
Heterogeneous Reaction Conditions

The kinetics of oxidation of alkenes by thallic sulphate in aqueous solutions, involving the two reaction steps-the hydroxythallation and the dethallation - was studied, and the effect of salts on the kinetics was examined; this made it possible to specify more precisely the reaction mechanism and to suggest a qualitative model of the reaction coordinate. It was found that in homogeneous as well as in heterogeneous reaction conditions, the reaction can be accelerated appreciably by adding tetraalkylammonium salts. These salts not only operate as catalysts of the phase transfer, but also exert a significant kinetic effect, which can be explained with a simplification in terms of a stabilization of the transition state of the reaction.

Acyclic Acetals in Propylene Carbonate-Based Electrolytes for Advanced and Safer Graphite-Based Lithium Ion Batteries

2020 ◽  
Vol 167 (4) ◽  
pp. 040509 ◽  
Author(s):  
J. Atik ◽  
S. Röser ◽  
R. Wagner ◽  
D. Berghus ◽  
M. Winter ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Propylene Carbonate ◽  
Lithium Ion

scholarly journals High-Mass Loading Hierarchically Porous Activated Carbon Electrode for Pouch-Type Supercapacitors with Propylene Carbonate-Based Electrolyte

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 785
Author(s):  
Tai-Feng Hung ◽  
Tzu-Hsien Hsieh ◽  
Feng-Shun Tseng ◽  
Lu-Yu Wang ◽  
Chang-Chung Yang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Propylene Carbonate ◽  
Rational Design ◽  
Rate Capability ◽  
High Mass ◽  
Electrochemical Performances ◽  
Mass Loading ◽  
Hierarchically Porous ◽  
Symmetric Supercapacitor ◽  
Porous Activated Carbon

Rational design and development of the electrodes with high-mass loading yet maintaining the excellent electrochemical properties are significant for a variety of electrochemical energy storage applications. In comparison with the slurry-casted electrode, herein, a hierarchically porous activated carbon (HPAC) electrode with higher mass loading (8.3 ± 0.2 mg/cm2) is successfully prepared. The pouch-type symmetric device (1 cell) with the propylene carbonate-based electrolyte shows the rate capability (7.1 F at 1 mA/cm2 and 4.8 F at 10 mA/cm2) and the cycling stability (83% at 12,000 cycles). On the other hand, an initial discharge capacitance of 32.4 F and the capacitance retention of 96% after 30,000 cycles are delivered from a pouch-type symmetric supercapacitor (five cells). The corresponding electrochemical performances are attributed to the fascinating properties of the HPAC and the synergistic features of the resulting electrode.

Chiral salenCo(iii) complexes with bulky substituents as catalysts for stereoselective alternating copolymerization of racemic propylene oxide with carbon dioxide and succinic anhydride

2021 ◽  
Vol 12 (12) ◽  
pp. 1776-1786
Author(s):  
Zhou Wang ◽  
Ying Mu
Keyword(s):  
Carbon Dioxide ◽  
Propylene Carbonate ◽  
Propylene Oxide ◽  
Succinic Anhydride ◽  
Poly Propylene ◽  
Alternating Copolymerization

Stereoregular poly(propylene carbonate)s and poly(propylene succinate-block-carbonate)s were synthesized with new chiral salenCo(iii) catalysts carrying bulky substituents.

Solubilities of the silver halides in propylene carbonate mixtures with bis(trifluoroethyl)sulfite

1977 ◽  
Vol 55 (13) ◽  
pp. 2499-2503 ◽  
Author(s):  
Mark Salomon
Keyword(s):  
Propylene Carbonate ◽  
Inductive Effect ◽  
Mixed Solvents ◽  
Chemical Properties ◽  
Silver Ions ◽  
Halide Ions ◽  
Silver Halides

The complex solubilities of AgCl, AgBr, and AgI have been measured in several mixed solvents containing propylene carbonate and bis(trifluoroethyl)sulfite. The results indicate that a large inductive effect destabilizes the solvation of silver ions whereas the halide ions appear to be stabilized by coordination with the sulfinyl sulfur. Several physio-chemical properties of pure bis(trifluoroethyl)sulfite are reported.

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