Fractal growth of ZrO2 nanoparticles induced by synthesis conditions
Fractal growth of ZrO2 nanoparticles induced by synthesis conditions
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合成条件诱导 ZrO2 纳米粒子的分形生长
DOI:
10.1039/c6ce01916a
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发表时间:
2016
期刊:
影响因子:
3.1
通讯作者:
G. Garnweitner
中科院分区:
文献类型:
--
作者:
P. Stolzenburg;A. Freytag;N. C. Bigall;G. Garnweitner
Strong changes in morphology and phase composition of zirconia nanoparticles can be induced by altering the growth conditions during nanoparticle synthesis. Here, we demonstrate that fractal ZrO2 nanocrystals showing high specific surface area can be obtained in the nonaqueous synthesis by variation of temperature and precursor concentration. The growth process was studied in detail revealing a size increase from 2.7 to 7 nm as well as a change in the polymorphic composition from tetragonal to monoclinic zirconia. TEM measurements of samples withdrawn over the course of the synthesis showed that particles grow from roundish to dendritic shapes during the phase transformation. In contrast to the common assumption that the phase transition is controlled by thermodynamics, our data shows that the transition is rather governed by kinetics.
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DOI:
--
发表时间:
1952
期刊:
影响因子:
--
作者:
D. C. Bradley;D. Hancock;W. Wardlaw
通讯作者:
W. Wardlaw
影响因子:
12.9
作者:
Michael G. Taylor;N. Austin;Chrysanthos E. Gounaris;Giannis Mpourmpakis
通讯作者:
Michael G. Taylor;N. Austin;Chrysanthos E. Gounaris;Giannis Mpourmpakis
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
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通讯作者:
S. Nesin
DOI:
10.1016/j.cep.2013.08.001
发表时间:
2013
期刊:
Chemical Engineering and Processing
影响因子:
--
作者:
M. Zimmermann;B. Temel;G. Garnweitner
通讯作者:
G. Garnweitner
影响因子:
3.8
作者:
Grabs, Ilka-Marina;Bradtmoeller, Christian;Garnweitner, Georg
通讯作者:
Garnweitner, Georg