A Mesocrystal-Like Morphology Formed by Classical Polymer-Mediated Crystal Growth

Paul J.M. Smeets; Kang Rae Cho; Nico A.J.M. Sommerdijk; James J. De Yoreo

doi:10.1002/adfm.201701658

A Mesocrystal-Like Morphology Formed by Classical Polymer-Mediated Crystal Growth

Paul J.M. Smeets, Kang Rae Cho, Nico A.J.M. Sommerdijk^*, James J. De Yoreo

^*Corresponding author for this work

NUANCE - Atomic and Nanoscale Characterization Experimental Center

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Growth by oriented assembly of nanoparticles is a widely reported phenomenon for many crystal systems. While often deduced through morphological analyses, direct evidence for this assembly behavior is limited and, in the calcium carbonate (CaCO₃) system, has recently been disputed. However, in the absence of a particle-based pathway, the mechanism responsible for the creation of the striking morphologies that appear to consist of subparticles is unclear. Therefore, in situ atomic force microscopy is used to investigate the growth of calcite crystals in solutions containing a polymer additive known for its ability to generate crystal morphologies associated with mesocrystal formation. It is shown that classical growth processes that begin with impurity pinning of atomic steps, leading to stabilization of new step directions, creation of pseudo-facets, and extreme surface roughening, can produce a microscale morphology previously attributed to nonclassical processes of crystal growth by particle assembly.

Original language	English (US)
Article number	1701658
Journal	Advanced Functional Materials
Volume	27
Issue number	40
DOIs	https://doi.org/10.1002/adfm.201701658
State	Published - Oct 26 2017

Funding

The authors thank J. Tao for help with confocal Raman microscopy. This research was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. All experiments were performed at the Molecular Foundry, Lawrence Berkeley National Laboratory, which was supported by the Office of Basic Energy Sciences, Scientific User Facilities Division under Contract No. DE-AC02-05CH11231. Further analysis was carried out at Pacific Northwest National Laboratory (PNNL), which is operated by Battelle for the U.S. Department of energy under Contract No. DE-AC05-76RL01830, and at the Eindhoven University of Technology through a VICI grant of the Dutch Science Foundation, NWO, the Netherlands. Two typographical errors and reference 24 were corrected on October 26, 2017, following initial online publication.

Keywords

atomic force microscopy
calcium carbonate
crystal growth

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
General Chemistry
General Materials Science
Electrochemistry
Biomaterials

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title = "A Mesocrystal-Like Morphology Formed by Classical Polymer-Mediated Crystal Growth",

abstract = "Growth by oriented assembly of nanoparticles is a widely reported phenomenon for many crystal systems. While often deduced through morphological analyses, direct evidence for this assembly behavior is limited and, in the calcium carbonate (CaCO3) system, has recently been disputed. However, in the absence of a particle-based pathway, the mechanism responsible for the creation of the striking morphologies that appear to consist of subparticles is unclear. Therefore, in situ atomic force microscopy is used to investigate the growth of calcite crystals in solutions containing a polymer additive known for its ability to generate crystal morphologies associated with mesocrystal formation. It is shown that classical growth processes that begin with impurity pinning of atomic steps, leading to stabilization of new step directions, creation of pseudo-facets, and extreme surface roughening, can produce a microscale morphology previously attributed to nonclassical processes of crystal growth by particle assembly.",

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AU - De Yoreo, James J.

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N2 - Growth by oriented assembly of nanoparticles is a widely reported phenomenon for many crystal systems. While often deduced through morphological analyses, direct evidence for this assembly behavior is limited and, in the calcium carbonate (CaCO3) system, has recently been disputed. However, in the absence of a particle-based pathway, the mechanism responsible for the creation of the striking morphologies that appear to consist of subparticles is unclear. Therefore, in situ atomic force microscopy is used to investigate the growth of calcite crystals in solutions containing a polymer additive known for its ability to generate crystal morphologies associated with mesocrystal formation. It is shown that classical growth processes that begin with impurity pinning of atomic steps, leading to stabilization of new step directions, creation of pseudo-facets, and extreme surface roughening, can produce a microscale morphology previously attributed to nonclassical processes of crystal growth by particle assembly.

AB - Growth by oriented assembly of nanoparticles is a widely reported phenomenon for many crystal systems. While often deduced through morphological analyses, direct evidence for this assembly behavior is limited and, in the calcium carbonate (CaCO3) system, has recently been disputed. However, in the absence of a particle-based pathway, the mechanism responsible for the creation of the striking morphologies that appear to consist of subparticles is unclear. Therefore, in situ atomic force microscopy is used to investigate the growth of calcite crystals in solutions containing a polymer additive known for its ability to generate crystal morphologies associated with mesocrystal formation. It is shown that classical growth processes that begin with impurity pinning of atomic steps, leading to stabilization of new step directions, creation of pseudo-facets, and extreme surface roughening, can produce a microscale morphology previously attributed to nonclassical processes of crystal growth by particle assembly.

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A Mesocrystal-Like Morphology Formed by Classical Polymer-Mediated Crystal Growth

Abstract

Funding

Keywords

ASJC Scopus subject areas

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