Phase diagram versus diagram of solubility: What is the difference for nanosystems?

Shirinyan, A.S.; Гусак, А. М.; Wautelet, M.

doi:10.1016/j.actamat.2005.07.014

Cited by 69 publications

(38 citation statements)

References 16 publications

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“…Water-rock interactions and diffusion of dissolved species are at least partly controlled by the water activity which changes either in a under-saturated environment (e.g., Seshadri et al, 2001;Uchida et al, 2002;Benavente et al, 2004), or under the surface forces field of a confining solid (e.g., Bogdan, 2002;Santiso et al, 2005;Shirinyan et al, 2005). These two types of situation have in common that they are controlled by the properties of thin adsorbed films or confined water in thin pores.…”

Section: Introductionmentioning

confidence: 98%

Experimental study of D/H isotopic fractionation factor of water adsorbed on porous silica tubes

Richard

Mercury

Massault

et al. 2007

Geochimica et Cosmochimica Acta

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Section: Introductionmentioning

confidence: 98%

Experimental study of D/H isotopic fractionation factor of water adsorbed on porous silica tubes

Richard

Mercury

Massault

et al. 2007

Geochimica et Cosmochimica Acta

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“…It is well known that Ag-Pt bimetallics have a large miscibility gap at the temperature below about 1190 1C in bulk [22], and they form alloys only at very high atomic content of either Ag or Pt [23]. However, both theoretical studies and experimental data have shown that the small-sizeeffect can greatly promote the miscibility between the metal elements with the decrease in particle size [21,[24][25][26][27]. In current case, as labeled in Fig.…”

Section: Resultsmentioning

confidence: 69%

Porous platinum mesoflowers with enhanced activity for methanol oxidation reaction

Zhuang

Wang

Hong

et al. 2012

Journal of Solid State Chemistry

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“…It has been reported by researchers that an increase in the curvature or a decrease in the size promotes an increase in the extent of miscibility. 1,9,13,15 This effect is commonly known as the capillary effect or the Gibbs-Thompson effect. 16 An increase in curvature induced enhancement of miscibility manifests as an increase in the solute atom concentration in the solid solution structure made up of bulk immiscible component solute and solvent atoms.…”

Section: Resultsmentioning

confidence: 99%

Morphology Dependence of Ag-Ni Solid Solubility

Srivastava

Mundotiya

2011

Electrochemical and Solid-State Letters

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Electrodeposition produced features with a dendritic morphology and features with a branched wire like morphology made up of about 20 nm sized particles. Both the features contained Ag and Ni atoms in a solid solution arrangement. However, the feature made up of nanoparticles contained a greater concentration of Ni as compared to the Ni content in the dendritic feature. The greater Ni content in the Ag-Ni solid solution for the features with nanoparticles when compared to the dendritic morphology features strongly indicated the effect of curvature in increasing the extent of miscibility between bulk immiscible atoms.Within the nano-size regimen, attributes related to the thermodynamic stability of phase(s) contained in a single component or multi-component isolated nano-sized particle change significantly with changes in both the size and the morphology of the particle. 1, 2 Stability of a phase(s) making up the volume of a nano-sized particle exposed to a certain temperature or pressure environment depends synergetically both on the size and the morphology of the particle. [3][4][5] The size-morphology interdependence is because of the fact that a change either in the nanoparticle's size or its morphology significantly modifies the nature of atomic coordination and chemistry of surfaces which consequently substantially changes the extent of energetic contribution from the system's surface towards its total free energy. As the minimization of the total free energy is the only criterion for phase stability, a change in the value of the total free energy decides the relative stability of the present phase(s) with respect to its continued existence or its transformation into any other possible phase(s) which provides for a lesser total free energy value. Therefore both the change in morphology and change in size are important variables to be considered in a comprehensive study designed towards investigating the stability of phases contained in a single component or multi-component nano-sized system. Consequently, both particle size and particle morphology provide the knobs to tune the functionalities that a nano-sized system can offer.One interesting effect of the system size-induced alteration in the bulk phase stability is the formation of novel alloys in the multicomponent nano-sized systems. These novel alloys are solid solutions consisting of component atoms that are immiscible in the bulk scale systems. [6][7][8][9] The bulk immiscibility of these component atoms stems from a large difference between their atomic sizes and a very high positive enthalpy of mixing into a solid solution structure. 10 Realization of miscibility leading to the formation of a solid solution structure is extremely relevant as these novel solid solution alloys can be technologically exploited. There are reports in the literature on the attainment of miscibility leading to the formation of solid solutions between bulk immiscible atoms coexisting in a nano-sized volume. Most of the published work however, emphasize only on the attainmen...

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Phase diagram versus diagram of solubility: What is the difference for nanosystems?

Cited by 69 publications

References 16 publications

Experimental study of D/H isotopic fractionation factor of water adsorbed on porous silica tubes

Experimental study of D/H isotopic fractionation factor of water adsorbed on porous silica tubes

Porous platinum mesoflowers with enhanced activity for methanol oxidation reaction

Morphology Dependence of Ag-Ni Solid Solubility

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