AI Article Synopsis
- The study focuses on synthesizing non-close-packed (ncp) hollow sphere nanostructures using a polymeric colloidal crystal template and a Pechini precursor, which is more challenging than forming close-packed materials.
- The unique tetrahedral and octahedral voids of the template facilitated the 3D ordered arrangement of these ncp hollow spheres through a process called crystallization-induced rearrangement.
- The resulting nanostructure, featuring a distinct morphology of interconnected large and small hollow spheres, maintained its shape even during transformation processes like sulfidation and reoxidation, despite some zinc segregation.
Article Abstract
While bottom-up syntheses of ordered nanostructured materials at colloidal length scales have been successful at producing close-packed materials, it is more challenging to synthesize non-close-packed (ncp) structures. Here, a metal oxide nanostructure with ncp hollow sphere arrays was synthesized by combining a polymeric colloidal crystal template (CCT) with a Pechini precursor. The CCT provided defined confinement through its tetrahedral (T ) and octahedral (O ) voids where the three-dimensionally (3D) ordered, ncp hollow sphere arrays formed as a result of a crystallization-induced rearrangement. This nanostructure, consisting of alternating, interconnected large and small hollow spheres, is distinct from the inverse opal structures typically generated from these CCTs. The morphology of the ncp hollow sphere arrays was retained in pseudomorphic transformations involving sulfidation and reoxidation cycling despite the segregation of zinc during these steps.
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| http://dx.doi.org/10.1002/anie.201808826 | DOI Listing |
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