The Effect of Nanosizing on the Oxidation of Partially Oxidized Copper Nanoparticles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43920362" target="_blank" >RIV/60461373:22310/20:43920362 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/13/12/2878/htm" target="_blank" >https://www.mdpi.com/1996-1944/13/12/2878/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma13122878" target="_blank" >10.3390/ma13122878</a>

Result language

angličtina

Original language name

The Effect of Nanosizing on the Oxidation of Partially Oxidized Copper Nanoparticles

Original language description

Copper nanoparticles are of great interest in various applications, such as catalysis, cooling fluids, conductive inks or for their antibacterial activity. In this paper, the thermal behavior of copper nanoparticles was studied using thermogravimetry, differential thermal analysis and differential scanning calorimetry. Original Cu samples as well as the products of oxidation were analysed by X-ray diffraction, scanning/transmission electron microscopy and energy dispersive spectroscopy. A step-by-step oxidation mechanism during the oxidation of Cu nano-powders was observed. The Cu-nano oxidation starts slightly above 150 degrees C when bulk copper does not yet react. The dominant oxidation product in the first step is Cu2O while CuO was identified as the final state of oxidation. Our results confirm an easier oxidation process of Cu-nano than Cu-micro particles, which must be attributed to kinetic not thermodynamic aspects of oxidation reactions.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

<a href="/en/project/GA20-03253S" target="_blank" >GA20-03253S: Phase equilibria, variable stoichiometry and physical properties of transition metal oxides</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

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UT code for WoS article

000550254000001

EID of the result in the Scopus database

2-s2.0-85087442755