Journal
CRYSTENGCOMM
Volume 16, Issue 24, Pages 5257-5267Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ce00339j
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Funding
- National Natural Science Foundation of China [50872016, 20973033, 51125009]
- National Natural Science Foundation for Creative Research Group [21221061]
- Hundred Talents Program of Chinese Academy of Science
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Cu2O can crystallize into various polymorphs, such as cubes, rhombic dodecahedra, branching structures, and hopper cubes, instead of thermodynamically stable octahedra by designed kinetic-control routes instead of traditional thermodynamic control. The present results confirmed that Cu2O polymorphs have distinct physical and chemical properties, and morphology changes can occur due to polymorphic transitions in a kinetics-controllable reaction system. Both thermodynamic and kinetic factors on these polymorphism systems are believed to be significant for developing a polymorphism-property relationship, ultimately guiding the appropriate material selection for specific applications. Furthermore, we took Cu2O as an example to illustrate the development of polymorphism in modern materials science: polymorphism is an intrinsic physicochemical characteristic, and involves varying growth shapes, phase transformation and variation of physical properties. These findings can provide new insight to polymorphism-performance correlation and kinetic-thermodynamic control synthesis.
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