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Title: Evaluating structure selection in the hydrothermal growth of FeS2 pyrite and marcasite

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms13799· OSTI ID:1413713
 [1];  [2]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

While the ab initio prediction of the properties of solids and their optimization towards new proposed materials is becoming established, little predictive theory exists as to which metastable materials can be made and how, impeding their experimental realization. Here we propose a quasi-thermodynamic framework for predicting the hydrothermal synthetic accessibility of metastable materials and apply this model to understanding the phase selection between the pyrite and marcasite polymorphs of FeS2. We demonstrate that phase selection in this system can be explained by the surface stability of the two phases as a function of ambient pH within nano-size regimes relevant to nucleation. This result suggests that a first-principles understanding of nano-size phase stability in realistic synthesis environments can serve to explain or predict the synthetic accessibility of structural polymorphs, providing a guideline to experimental synthesis via efficient computational materials design.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1413713
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 54 works
Citation information provided by
Web of Science

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Cited By (12)

Nanocrystalline Pyrite for Photovoltaic Applications journal June 2018
Recent Progress on Pyrite FeS2 Nanomaterials for Energy and Environment Applications: Synthesis, Properties and Future Prospects journal November 2019
Understanding crystallization pathways leading to manganese oxide polymorph formation journal June 2018
Efficient first-principles prediction of solid stability: Towards chemical accuracy journal March 2018
High-fraction brookite films from amorphous precursors journal November 2017
Design principles for high transition metal capacity in disordered rocksalt Li-ion cathodes journal January 2018
Relative stability of FeS 2 polymorphs with the random phase approximation approach journal January 2018
Synergistic core–shell interactions enable ultra-low overpotentials for enhanced CO 2 electro-reduction activity journal January 2018
Toward materials-by-design: achieving functional materials with physical and chemical effects journal October 2019
Metastability effects on the photoluminescence of ZnO nano-micro structures grown at low temperature and influence of the precursors on their morphology and structure journal September 2018
Rationalizing accurate structure prediction in the meta-GGA SCAN functional journal July 2019
Non-equilibrium crystallization pathways of manganese oxides in aqueous solution journal February 2019

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