Berkeley Nanogeoscience Center


Hengzhong Zhang




 Position:

Heng Zhang, Ph.D.
Assistant Researcher,
Dept. Earth & Planetary Science
University of California - Berkeley		 Address:

Hengzhong Zhang
307 McCone Hall
UC-Berkeley
Berkeley
CA 94720		 Contacts:

Email: heng@eps.berkeley.edu

Office:  (510) 643 9120




Curriculum Vitae

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Research Examples

Figure 1 Molecular dynamics simulation of the structure of a zinc sulfide nanoparticle in the presence of surface water molecules. From Zhang et al., Nature. 424, 1025 (2003).






Figure 2 Colorized TEM image of ZnS nanoparticle with mixed cubic and hexagonal stacking sequence. Cover image. From Zhang et al., J. Mater. Chem. 26, 249 (2006).



Selected Publications

Finnegan, M.F., Zhang, H. & Banfield, J.F.
Phase stability and transformation in titania nanoparticles in aqueous solutions dominated by surface energy.
J. Phys. Chem. C  111, 1962 (2007)

Chen, B., Zhang, H., Gilbert, B., and Banfield, J.F
Mechanism of inhibition of nanoparticle growth and phase transformation by surface impurities
Physical Review Letters, 98, 106103 (2007).

Zhang, H., Chen, B., Gilbert, B. & Banfield, J. F.
Kinetically controlled formation of a novel nanoparticulate ZnS with mixed cubic and hexagonal stacking.
Journal of Materials Chemistry, 26, 249-254 (2006)

Zhang, H. & Banfield, J. F.
Size-dependence of the kinetic rate constant for phase transformation in TiO2 nanoparticles.
Chemistry of Materials, 17, 3421-3425 (2005)

Gilbert B., Huang, F., Zhang, H., and Banfield, J.F.
Nanoparticles: strained and stiff
Science, 305, 651-654 (2004)

F. Huang, B. Gilbert, H. Zhang & J. F. Banfield.
Reversible, surface-controlled structure transformation in nanoparticles induced by aggregation-disaggregation
Physical Review Letters, 92, 155501 (2004)

H. Zhang, B. Gilbert, F. Huang & J. F. Banfield.
Water-driven transformation of nanoparticle structure at room temperature.
Nature, 424, 1025-1029 (2003)

H. Zhang, F. Huang, B. Gilbert & J. F. Banfield.
Molecular dynamics simulations, thermodynamic analysis and experimental study of phase stability of zinc sulfide nanoparticles
Journal of Physical Chemistry B, 107, 13051 -13060 (2003).

Zhang, H., Finnegan, M. & Banfield, J. F.
Preparing single-phase nanocrystalline anatase from amorphous titania with particle sizes tailored by temperature.
Nano Letters, 1, 81-85 (2001)

Zhang, H. & Banfield, J. F.
Understanding polymorphic phase transformation behavior during growth of nanocrystalline aggregates: Insights from TiO2.
Journal of Physical Chemistry B, 104, 3481-3487 (2000).

Zhang, H., & Banfield, J. F.
Thermodynamic analysis of phase stability of nanocrystalline titania.
J. Mater. Chem. 8, 2073 (1998)