(Li, Na, K)OH hydration bonding thermodynamics: Solution self-heating

Sun, Chang Q.; Chen, Jiasheng; Yao, Chuang; Liu, Xinjuan; Zhang, Xi; Huang, Yongli

doi:10.1016/j.cplett.2018.02.038

Cited by 14 publications

(4 citation statements)

References 30 publications

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“…Insets a shows the corresponding solvent (< 3100 cm -1 ) and b the solute (3610 cm -1 ) phonon peaks (reprinted with copyright permission from ref (20,21) with permission from Elsevier, copyright [2017,2018]). Comparison of the f(C) functions, the electric conductivity (Figure 9), surface stress, and the relative viscosity for the concentrated HCl and LiOH solutions (Figure 10) revealed the following:…”

Section: Basic Solvation: O::o Compression and Solute H-o Contractionmentioning

confidence: 99%

“…Surface stress of the concentrated (a) HX and (b) YOH solutions and the relative viscosity for the concentrated (c) HCl and (d) LiOH solutions. HH fragilization depresses the surface stress and Xpolarization and O::O compression raises the viscosity in different manners (reprinted with copyright permission from ref(20,21) with permission from Elsevier, copyright[2017, 2018]).…”

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confidence: 99%

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Unprecedented O:⇔:O compression and H↔H fragilization in Lewis solutions

Sun

2019

Phys. Chem. Chem. Phys.

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Charge injection in terms of protons, lone pairs, cations and anions by acid and base solvation mediates the HB network and properties of Lewis solutions through H↔H fragilization, O:⇔:O compression and polarization, ionic polarization and hydrating H2O dipolar screen shielding, anion–anion repulsion, compressed solvent H–O bond elongation and undercoordinated solute H–O bond contraction.

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Section: Basic Solvation: O::o Compression and Solute H-o Contractionmentioning

confidence: 99%

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confidence: 99%

Unprecedented O:⇔:O compression and H↔H fragilization in Lewis solutions

Sun

2019

Phys. Chem. Chem. Phys.

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“…It is essential to treat water as a crystalline-like structure with well-defined lattice geometry, strong correlation, and high fluctuation. For a specimen containing N oxygen atoms, the 2N numbers of protons H + and lone pairs ":" and the O:H−O bond configuration conserve regardless of structural phase [60] unless excessive H + is introduced by acid solvation to form the H3O + and HH anti-HB formation [61] or ":" introduction with HOby base solvation to form the O::O super-HB [62]. The H3O + or the HOreplaces the central H2O in Figure 1a TN, respectively [2].…”

Section: Wonders Of H2o Molecular Undercoordination and Hydrationmentioning

confidence: 99%

Supersolidity of undercoordinated and hydrating water

Sun

2018

Phys. Chem. Chem. Phys.

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Supersolid water, firstly defined in 2013 [J Phys Chem Letter 4: 2565; ibid 4: 3238] and intensively verified since then, refers to those water molecules being polarized by molecular undercoordination (often called confinement such as nanobubbles and droplets) or by salt hydration. This work shows that a combination of the STM/S, XPS, NEXFAS, SFG, DPS, ultrafast UPS, and ultrafast FTIR observations and quantum theory calculations confirmed the bond−electron−phonon correlation in the supersolid phase. The supersolidity is characterized by the shorter and stiffer H−O bond and longer and softer O:H nonbond, O 1s energy entrapment, hydrated electron polarization and the longer lifetime of photoelectrons and phonons. The supersolid phase is less dense, elastoviscous, mechanically and thermally more stable with the hydrophobic and frictionless surface. The O:H−O bond cooperative relaxation disperses outwardly the quasisolid phase boundary to raise the melting point and meanwhile lower the freezing temperature of the quasisolid phase -called supercooling and superheating. Highlight  Molecular undercoordination and ionic hydration effect the same on O:H−O relaxation  XPS O 1s and K-edge absorption energy shifts in proportional to the H−O bond energy  Electron hydration probes the site-and size-resolved bounding energy and the electron lifetime  DPS, SFG, and calculations confirm the site-resolved H−O contraction and thermal stability

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“…Comparison of the ionic fYX(C) for (a) NaI/H2O, (b) NaBr/H2O, and (c) KCl/H2O solutions and their respective decomposition. The concentration dependent (d) contact angles for HX acidic, YOH basic, and YX salt solutions (reprinted with permission from[19,63,106]).…”

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confidence: 99%