Thermodynamics of the N(sub 2)/N(super 3) redox couple in a LiBr-KBr-CsBr melt

Article Abstract:

Nitrogen electrode reaction is studied in a LiBr-KBr-CsBr melt containing Li(sub 3)N. The results of quantitative analysis of anodically evolved gas from a LiBr-KBr-CsBr-Li(sub 3)N melt shows that the oxidation of N(super 3-) ions proceeds to produce pure nitrogen gas almost quantitatively at potentials more positive than 0.3 V versus Li(super +)/ Li and the standard formal potential of the N(sub 2)/N(super 3-) redox couple is evaluated and the thermodynamic quantities for Li(sub 3) is estimated.

Nitrogen Compounds, Potassium & Sodium Compounds, Potassium & Compounds, Thermal properties, Thermodynamics, Bromides, Potassium compounds, Bromides (Chemistry)

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A first-principles investigation of LiN[H.sub.2] as hydrogen-storage material effects of substitutions of K and Mg for Li

Article Abstract:

The density functional theory is employed to investigate LiN[H.sub.2] and partially Li-substituted systems, with an aim to understand the effects of the substitution on the destabilization of the N[H.sub.2] species. The findings reveal that in both cases the N-H bonds are weakened, and in particular, the Mg substitute appears to be more effective in the destabilization of the N[H.sub.2].

Usage, Hydrogen bonding, Hydrogen bonds, Density functionals, Density functional theory, Structure, Nitrides

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NMR investigation of ionic liquid-LiX mixtures: Pyrrolidinium cations and TFSI(super -) anions

Article Abstract:

An extensive NMR characterization of N-methyl-N-propyl-pyrrolidinium bis-(trifluoromethanesulfonyl)imide (PYR(sub 13)TFSI) room-temperature ionic liquid and its mixtures with LiTFSI is reported. NMR is used to investigate the interactions between the ionic liquid and lithium salt and the diffusion coefficients of all ionic species present in these mixtures.

Nuclear magnetic resonance, Ionic solutions

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