Glass‐Forming Composition Regions and Glass Transition Temperatures for Aqueous Electrolyte Solutions

Glass transition temperatures (Tg) of the system LiCl-DMSO-H2O have been measured. A small addition of DMSO to the binary aqueous system removes its unusual variation of Tg with salt concentration. The concentration dependence of Tg of the ternary system at a constant composition of the mixed solvent can be described by a linear equation. The variation in Tg with the mixed solvent composition at constant LiCl concentration follows a complicated pattern which cannot be described by commonly used relations. The boundaries of glass-forming region are discussed in terms of the effect of a change in solution composition on the induction period of equilibrium solid phase nucleation.

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Glass formation and glass structure of BiO1.5–CuO–Ca0.5Sr0.5O system

Journal of Materials Research ◽

10.1557/jmr.1989.0911 ◽

1989 ◽

Vol 4 (4) ◽

pp. 911-915 ◽

Cited By ~ 92

Author(s):

Haixing Zheng ◽

Ren Xu ◽

J. D. Mackenzie

Keyword(s):

Glass Transition ◽

Glass Formation ◽

Glass Structure ◽

Molecular Volume ◽

Transition Temperatures ◽

Glass Transition Temperatures ◽

Glass Forming ◽

Glass Rods

The glass-forming region of the BiO1.5–CuO–Ca0.5Sr0.5O system has been determined by melting 5 g batches. Glass rods 4 mm in diameter and 75 mm long have been made. The glass transition temperatures (TG) and the onset crystallization temperatures (Tx) are around 390 °C and 440 °C, respectively. Densities of these glasses range from 5.5 to 7.0 g/cm3. The glass structure consists of the [BiO3] and [BiO6] units, and the conversion between these two polyhedra mainly depends on the Ca0.5Sr0.5O amount. The molecular volume of the glasses indicated that increasing Ca0.5Sr0.5O caused loose glass structures.

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Glass transition temperatures in the system calcium chloride-water-dimethylsulphoxide

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19831558 ◽

1983 ◽

Vol 48 (6) ◽

pp. 1558-1563

Author(s):

Jarmila Malá ◽

Ivo Sláma

Keyword(s):

Glass Transition ◽

Transition Temperature ◽

Mole Fraction ◽

Mixed Solvent ◽

Transition Temperatures ◽

Composition Region ◽

Glass Transition Temperatures ◽

Glass Forming ◽

Dmso System ◽

Chloride Water

The glass-forming composition region of the CaCl2-H2O-DMSO system has been established, and the glass transition temperatures of the mixtures have been determined as a function of the CaCl2 content at a constant DMSO mole fraction in the mixed solvent. The dependence of the glass transition temperature on the CaCl2 mole fraction at a constant mole fraction of DMSO in the mixed solvent can be described by a linear relationship.

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Promoting Nitrogen Electroreduction to Ammonia with Bismuth Nanocrystals and Potassium Cations in Water

10.26434/chemrxiv.11768814.v1 ◽

2020 ◽

Cited By ~ 1

Author(s):

Jaecheol Choi ◽

Hoang-Long Du ◽

Manjunath Chatti ◽

Bryan H. R. Suryanto ◽

Alexandr Simonov ◽

...

Keyword(s):

Electrocatalytic Activity ◽

Aqueous Electrolyte ◽

Electrolyte Solutions ◽

Reduction Reaction ◽

Nitrogen Reduction ◽

Aqueous Electrolyte Solutions

We demonstrate that bismuth exhibits no measurable electrocatalytic activity for the nitrogen reduction reaction to ammonia in aqueous electrolyte solutions, contrary to several recent reports on the highly impressive rates of Bi-catalysed electrosynthesis of NH<sub>3</sub> from N<sub>2</sub>.

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