Details
| Original language | English |
|---|---|
| Pages (from-to) | 3117-3126 |
| Number of pages | 10 |
| Journal | Journal of Materials Chemistry |
| Volume | 22 |
| Issue number | 7 |
| Early online date | 5 Jan 2012 |
| Publication status | Published - 21 Feb 2012 |
Abstract
Zinc stannate (Zn 2SnO 4) nanoparticles with an average size of about 26 nm are synthesized via single-step mechanochemical processing of binary oxide precursors (ZnO and SnO 2) at ambient temperature, without the need for the subsequent calcination, thus making the synthesis route very simple and cost-effective. The mechanically induced phase evolution of the 2ZnO + SnO 2 mixture is followed by XRD and by a variety of spectroscopic techniques including 119Sn MAS NMR, Raman spectroscopy, 119Sn Mössbauer spectroscopy, and XPS. High-resolution TEM studies reveal a non-uniform structure of mechanosynthesized Zn 2SnO 4 nanoparticles consisting of a crystalline core surrounded by a structurally disordered surface shell. Due to the ability of the applied solid-state spectroscopies to probe the local environment of Sn cations, valuable complementary insight into the nature of the local structural disorder of mechanosynthesized Zn 2SnO 4 is obtained. The findings hint at a highly nonequilibrium state of the as-prepared stannate characterized by its partly inverse spinel structure and the presence of deformed polyhedra in the surface shell of nanoparticles.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- Materials Chemistry
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In: Journal of Materials Chemistry, Vol. 22, No. 7, 21.02.2012, p. 3117-3126.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Nonequilibrium structure of Zn2SnO 4 spinel nanoparticles
AU - Šepelák, Vladimir
AU - Becker, Sebastian M.
AU - Bergmann, Ingo
AU - Indris, Sylvio
AU - Scheuermann, Marco
AU - Feldhoff, Armin
AU - Kübel, Christian
AU - Bruns, Michael
AU - Stürzl, Ninette
AU - Ulrich, Anne S.
AU - Ghafari, Mohammad
AU - Hahn, Horst
AU - Grey, Clare P.
AU - Becker, Klaus D.
AU - Heitjans, Paul
PY - 2012/2/21
Y1 - 2012/2/21
N2 - Zinc stannate (Zn 2SnO 4) nanoparticles with an average size of about 26 nm are synthesized via single-step mechanochemical processing of binary oxide precursors (ZnO and SnO 2) at ambient temperature, without the need for the subsequent calcination, thus making the synthesis route very simple and cost-effective. The mechanically induced phase evolution of the 2ZnO + SnO 2 mixture is followed by XRD and by a variety of spectroscopic techniques including 119Sn MAS NMR, Raman spectroscopy, 119Sn Mössbauer spectroscopy, and XPS. High-resolution TEM studies reveal a non-uniform structure of mechanosynthesized Zn 2SnO 4 nanoparticles consisting of a crystalline core surrounded by a structurally disordered surface shell. Due to the ability of the applied solid-state spectroscopies to probe the local environment of Sn cations, valuable complementary insight into the nature of the local structural disorder of mechanosynthesized Zn 2SnO 4 is obtained. The findings hint at a highly nonequilibrium state of the as-prepared stannate characterized by its partly inverse spinel structure and the presence of deformed polyhedra in the surface shell of nanoparticles.
AB - Zinc stannate (Zn 2SnO 4) nanoparticles with an average size of about 26 nm are synthesized via single-step mechanochemical processing of binary oxide precursors (ZnO and SnO 2) at ambient temperature, without the need for the subsequent calcination, thus making the synthesis route very simple and cost-effective. The mechanically induced phase evolution of the 2ZnO + SnO 2 mixture is followed by XRD and by a variety of spectroscopic techniques including 119Sn MAS NMR, Raman spectroscopy, 119Sn Mössbauer spectroscopy, and XPS. High-resolution TEM studies reveal a non-uniform structure of mechanosynthesized Zn 2SnO 4 nanoparticles consisting of a crystalline core surrounded by a structurally disordered surface shell. Due to the ability of the applied solid-state spectroscopies to probe the local environment of Sn cations, valuable complementary insight into the nature of the local structural disorder of mechanosynthesized Zn 2SnO 4 is obtained. The findings hint at a highly nonequilibrium state of the as-prepared stannate characterized by its partly inverse spinel structure and the presence of deformed polyhedra in the surface shell of nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=84856741503&partnerID=8YFLogxK
U2 - 10.1039/c2jm15427g
DO - 10.1039/c2jm15427g
M3 - Article
AN - SCOPUS:84856741503
VL - 22
SP - 3117
EP - 3126
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
SN - 0959-9428
IS - 7
ER -