Influence of Pressure and Temperature on X-Ray Induced Photoreduction of Nanocrystalline CuO

X-ray absorption spectroscopy at the Cu K-edge is used to study X-ray induced photoreduction of copper oxide to metallic copper. Although no photoreduction has been observed in microcrystalline copper oxide, we have found that the photoreduction kinetics of nanocrystalline CuO depends on the crystal...

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Bibliographic Details
Published inLatvian journal of physics and technical sciences Vol. 55; no. 6; pp. 13 - 19
Main Authors Kuzmin, A., Anspoks, A., Nataf, L., Baudelet, F., Irifune, T.
Format Journal Article
LanguageEnglish
Published Riga Sciendo 01.12.2018
De Gruyter Poland
Subjects
Copper
copper oxide
Copper oxides
Crystallites
high-pressure
nanocrystalline
Nanocrystals
Nanoparticles
Photochemistry
radiolysis
X ray absorption
x-ray absorption spectroscopy
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Summary:X-ray absorption spectroscopy at the Cu K-edge is used to study X-ray induced photoreduction of copper oxide to metallic copper. Although no photoreduction has been observed in microcrystalline copper oxide, we have found that the photoreduction kinetics of nanocrystalline CuO depends on the crystallite size, temperature and pressure. The rate of photoreduction increases for smaller nanoparticles but decreases at low temperature and higher pressure.
Bibliography:ObjectType-Article-1
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ISSN:0868-8257
0868-8257
2199-6156
DOI:10.2478/lpts-2018-0039