Thermodynamic Modeling of Copper Nanoparticles Oxidation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918370" target="_blank" >RIV/60461373:22310/19:43918370 - isvavai.cz</a>
Result on the web
<a href="https://aip.scitation.org/doi/pdf/10.1063/1.5132726?class=pdf" target="_blank" >https://aip.scitation.org/doi/pdf/10.1063/1.5132726?class=pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.5132726" target="_blank" >10.1063/1.5132726</a>

Result language
angličtina
Original language name
Thermodynamic Modeling of Copper Nanoparticles Oxidation
Original language description
A thermodynamic analysis of oxidation of copper nanoparticles was performed. The first step of oxidation, namely Cu2O formation on the surface of spherical copper particles (core-shell model) was considered. Our results show a spontaneous oxidation of particles at oxygen pressures well below the equilibrium oxygen pressure in bulk system and a stability of oxide shell up to higher temperatures. This surface related effect result from a negative surface contribution to the Gibbs energy of the reaction 4 Cu(s) + O2(g) = 2 Cu2O due to the higher surface energy of solid copper compared to the surface energy of Cu2O and interfacial energy on the Cu/Cu2O interface.
Czech name
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Czech description
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Project
<a href="/en/project/GA17-13161S" target="_blank" >GA17-13161S: The role of nonstoichimetry and nanosizing in material properties of metal oxides</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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