Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 395-399 |
| Seitenumfang | 5 |
| Fachzeitschrift | Powder Technology |
| Jahrgang | 235 |
| Frühes Online-Datum | 27 Okt. 2012 |
| Publikationsstatus | Veröffentlicht - Feb. 2013 |
Abstract
In this work, the ZnO spherical nanoparticles with a diameter in the range of 10-30nm have been prepared via mechanochemical oxidation of metallic Zn powders treated in a vibratory ball mill in the presence of air and liquid nitrogen. The as-prepared nanocrystals were characterized by XRD, HR-TEM, FTIR, XPS, and UV-vis spectroscopy. The results show that metallic zinc powder is completely converted to nanocrystalline ZnO within 48h of cryomilling. The XPS analysis confirms the presence of incorporated nitrogen as well as Zn(OH)2 and carbonate species formed on the reactive structurally-disordered surface shell of the as-prepared nanoparticles. Compared with the pure ZnO, the light absorption by the as-prepared ZnO nanocrystals was shifted to longer wavelengths.
ASJC Scopus Sachgebiete
- Chemische Verfahrenstechnik (insg.)
- Allgemeine chemische Verfahrenstechnik
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in: Powder Technology, Jahrgang 235, 02.2013, S. 395-399.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - One-step synthesis of nanocrystalline ZnO via cryomilling
AU - Fabián, M.
AU - Tyuliev, G.
AU - Feldhoff, A.
AU - Kostova, N.
AU - Kollár, P.
AU - Suzuki, S.
AU - Saito, F.
AU - Šepelák, V.
N1 - Funding Information: The work was supported by the Japan Society for the Promotion of Science (JSPS) . Partial support by the Scientific Grant Agency of the Ministry of Education of Slovak Republic and the Slovak Academy of Sciences VEGA ( 2/0139/10 ), Slovak Research and Developing Agency APVV (project APVV-0189-10 ), ITMS 26220120035 and DFG ( SPP 1415 ) is gratefully acknowledged.
PY - 2013/2
Y1 - 2013/2
N2 - In this work, the ZnO spherical nanoparticles with a diameter in the range of 10-30nm have been prepared via mechanochemical oxidation of metallic Zn powders treated in a vibratory ball mill in the presence of air and liquid nitrogen. The as-prepared nanocrystals were characterized by XRD, HR-TEM, FTIR, XPS, and UV-vis spectroscopy. The results show that metallic zinc powder is completely converted to nanocrystalline ZnO within 48h of cryomilling. The XPS analysis confirms the presence of incorporated nitrogen as well as Zn(OH)2 and carbonate species formed on the reactive structurally-disordered surface shell of the as-prepared nanoparticles. Compared with the pure ZnO, the light absorption by the as-prepared ZnO nanocrystals was shifted to longer wavelengths.
AB - In this work, the ZnO spherical nanoparticles with a diameter in the range of 10-30nm have been prepared via mechanochemical oxidation of metallic Zn powders treated in a vibratory ball mill in the presence of air and liquid nitrogen. The as-prepared nanocrystals were characterized by XRD, HR-TEM, FTIR, XPS, and UV-vis spectroscopy. The results show that metallic zinc powder is completely converted to nanocrystalline ZnO within 48h of cryomilling. The XPS analysis confirms the presence of incorporated nitrogen as well as Zn(OH)2 and carbonate species formed on the reactive structurally-disordered surface shell of the as-prepared nanoparticles. Compared with the pure ZnO, the light absorption by the as-prepared ZnO nanocrystals was shifted to longer wavelengths.
KW - Cryomilling
KW - Nanoparticle
KW - Nitrogen
KW - Semiconductor
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=84871475123&partnerID=8YFLogxK
U2 - 10.1016/j.powtec.2012.10.049
DO - 10.1016/j.powtec.2012.10.049
M3 - Article
AN - SCOPUS:84871475123
VL - 235
SP - 395
EP - 399
JO - Powder Technology
JF - Powder Technology
SN - 0032-5910
ER -