Experimental methods for determining the melting temperature and the heat of melting of clusters and nanoparticles

Макаров, Г. Н.

doi:10.3367/ufnr.0180.201002d.0185

Cited by 25 publications

(6 citation statements)

References 239 publications

(23 reference statements)

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“…Since the melting particles have sizes not exceeding few dozen nanometers, the size effect can be really observed (Berry & Smirnov, 2009;Makarov, 2010). We would like to stress again that the onset temperatures of all the melting curves for FW in native starches, are significantly smaller than 0 • C, see Figs.…”

Section: The Melting Temperature Of Frozen Water In the Starchesmentioning

confidence: 95%

“…3 demonstrates separately the shift of the melting curves upon varying humidity for the native potato starch as an example. In thermodynamics of small systems this size effect is attributed to the increase of the role of the surface energy as a consequence of a substantially changing ratio between the surface and volume of the melting particle (Berry & Smirnov, 2009;Hill, 2001;Makarov, 2010;Wunderlich, 1980).…”

Section: The Melting Temperature Of Frozen Water In the Starchesmentioning

confidence: 97%

“…(Berry & Smirnov, 2009;Bershtein & Egorov, 1994;Godovsky, 1976;Hill, 2001;Makarov, 2010;Park et al, 2006;Wunderlich, 1980;Yuryev, Wasserman, Andreev, & Tostoguzov, 2002). The dependence of thermodynamic properties of clusters on sizes have been considered both in three dimensions (Berry & Smirnov, 2009;Hill, 2001;Makarov, 2010;Park et al, 2006) and in one dimension. Interestingly, the latter case has been applied to lamellar crystals of synthetic polymers (Bershtein & Egorov, 1994;Godovsky, 1976;Wunderlich, 1980) and lamellas of starch crystallites (Yuryev et al, 2002).…”

Section: Introductionmentioning

confidence: 94%

“…The influence of the surface energy on the energy balance of small particles has been actively discussed during the last decades, see, e.g. (Berry & Smirnov, 2009;Bershtein & Egorov, 1994;Godovsky, 1976;Hill, 2001;Makarov, 2010;Park et al, 2006;Wunderlich, 1980;Yuryev, Wasserman, Andreev, & Tostoguzov, 2002). The dependence of thermodynamic properties of clusters on sizes have been considered both in three dimensions (Berry & Smirnov, 2009;Hill, 2001;Makarov, 2010;Park et al, 2006) and in one dimension.…”

Section: Introductionmentioning

confidence: 98%

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Thermal properties of frozen water in the native and amorphous starches with various hydration degrees

Grunina

Tsereteli

Belopolskaya

et al. 2015

Carbohydrate Polymers

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Section: The Melting Temperature Of Frozen Water In the Starchesmentioning

confidence: 95%

Section: The Melting Temperature Of Frozen Water In the Starchesmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 98%

See 2 more Smart Citations

Thermal properties of frozen water in the native and amorphous starches with various hydration degrees

Grunina

Tsereteli

Belopolskaya

et al. 2015

Carbohydrate Polymers

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“…Note that, because of the complex character of the above methods and problems in their interpretation, contemporary experimental methods for studying clusters are frequently combined with computer methods for analyzing the results. In addition, specific experimental methods[165,166,167] are used for metal clusters.…”

mentioning

confidence: 99%

Modeling of configurational transitions in atomic systems

Berry¹,

Smirnov²

2013

Phys.-Usp.

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Configurational transitions in atomic systems, i.e. transitions that change the system's geometric structure, include chemical reactions in gases, transitions between aggregate states of a polyatomic system, (the phase transitions), and nanocatalytic processes. These transitions are analyzed from the standpoint of the behavior of the system on its effective Potential Energy Surface (PES), so that the transition results from passage between different local minima of the PES. It is shown that the density functional theory (DFT) is suitable in principle for the analysis of complex atomic systems, but based on contemporary computer codes, this method cannot be used even for simple atomic systems, such as heavy atoms or metal clusters. Next, a statistical determination of energetic parameters of atomic systems does not allow to analyze the dynamics of configuration transitions; in particular, the activation energy of a chemical process differs significantly from the height of a barrier which separates the atomic configurations of the initial and final states of the transition. In particular, the statistical models, including DFT, give a melting point for clusters with a pairwise atomic interaction that is twice that from dynamic models which account for thermal motion of atoms. Hence the optimal description of configurational transitions for atomic systems may be based on joining the DFT methods for determination the PES of this system with molecular dynamics, to account for thermal motion of atoms.

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Study of the Dependence of the Melting Temperature of Aluminum Nanoparticles on the Particle Size

Бедарев

Lavruk

2022

J Eng Phys Thermophy

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Experimental methods for determining the melting temperature and the heat of melting of clusters and nanoparticles

Cited by 25 publications

References 239 publications

Thermal properties of frozen water in the native and amorphous starches with various hydration degrees

Thermal properties of frozen water in the native and amorphous starches with various hydration degrees

Modeling of configurational transitions in atomic systems

Study of the Dependence of the Melting Temperature of Aluminum Nanoparticles on the Particle Size

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