Investigating Processes of Nanocrystal Formation and Transformation via Liquid Cell TEM

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Nielsen_263341.pdf
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2014
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Nielsen, Michael H.
Li, Dongsheng
Zhang, Hengzhong
Aloni, Shaul
Han, T. Yong-Jin
Frandsen, Cathrine
Banfield, Jillian F.
De Yoreo, James J.
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Microscopy and Microanalysis. 2014, 20(2), pp. 425-436. ISSN 1431-9276. eISSN 1435-8115. Available under: doi: 10.1017/S1431927614000294
Zusammenfassung

Recent ex situ observations of crystallization in both natural and synthetic systems indicate that the classical models of nucleation and growth are inaccurate. However, in situ observations that can provide direct evidence for alternative models have been lacking due to the limited temporal and spatial resolution of experimental techniques that can observe dynamic processes in a bulk solution. Here we report results from liquid cell transmission electron microscopy studies of nucleation and growth of Au, CaCO3, and iron oxide nanoparticles. We show how these in situ data can be used to obtain direct evidence for the mechanisms underlying nanoparticle crystallization as well as dynamic information that provide constraints on important energetic parameters not available through ex situ methods.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
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liquid cell TEM; nucleation; oriented attachment; crystal growth
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ISO 690NIELSEN, Michael H., Dongsheng LI, Hengzhong ZHANG, Shaul ALONI, T. Yong-Jin HAN, Cathrine FRANDSEN, Jong SETO, Jillian F. BANFIELD, Helmut CÖLFEN, James J. DE YOREO, 2014. Investigating Processes of Nanocrystal Formation and Transformation via Liquid Cell TEM. In: Microscopy and Microanalysis. 2014, 20(2), pp. 425-436. ISSN 1431-9276. eISSN 1435-8115. Available under: doi: 10.1017/S1431927614000294
BibTex
@article{Nielsen2014Inves-29854,
  year={2014},
  doi={10.1017/S1431927614000294},
  title={Investigating Processes of Nanocrystal Formation and Transformation via Liquid Cell TEM},
  url={http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9240792&fileId=S1431927614000294},
  number={2},
  volume={20},
  issn={1431-9276},
  journal={Microscopy and Microanalysis},
  pages={425--436},
  author={Nielsen, Michael H. and Li, Dongsheng and Zhang, Hengzhong and Aloni, Shaul and Han, T. Yong-Jin and Frandsen, Cathrine and Seto, Jong and Banfield, Jillian F. and Cölfen, Helmut and De Yoreo, James J.}
}
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