Direct Synthesis and Pseudomorphic Transformation of Mixed Metal Oxide Nanostructures with Non-Close-Packed Hollow Sphere Arrays

Zhendong Liu; Wenyang Zhao; Prashant Kumar; Xinyu Li; Yasser Al Wahedi; K. Andre Mkhoyan; Michael Tsapatsis; Andreas Stein

doi:10.1002/anie.201808826

Direct Synthesis and Pseudomorphic Transformation of Mixed Metal Oxide Nanostructures with Non-Close-Packed Hollow Sphere Arrays

Zhendong Liu, Wenyang Zhao, Prashant Kumar, Xinyu Li, Yasser Al Wahedi, K. Andre Mkhoyan, Michael Tsapatsis, Andreas Stein

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

5 Scopus citations

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_d) and octahedral (O_h) 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.

Original language	English (US)
Pages (from-to)	15707-15711
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	57
Issue number	48
DOIs	https://doi.org/10.1002/anie.201808826
State	Published - Nov 26 2018

Bibliographical note

Funding Information:
This project is financially supported by the Gas Sub-Committee R&D arm of Abu Dhabi National Oil Company, UAE. Part of this work was conducted at the University of Minnesota Characterization Facility, which receives partial support from the NSF through the NNIN program. We thank Prof. R. L. Penn for use of the XRD.

Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

hierarchical structures
hollow sphere arrays
metal oxide
nanostructures
non-close-packed architecture

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10.1002/anie.201808826

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title = "Direct Synthesis and Pseudomorphic Transformation of Mixed Metal Oxide Nanostructures with Non-Close-Packed Hollow Sphere Arrays",

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 (Td) and octahedral (Oh) 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.",

keywords = "hierarchical structures, hollow sphere arrays, metal oxide, nanostructures, non-close-packed architecture",

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note = "Funding Information: This project is financially supported by the Gas Sub-Committee R&D arm of Abu Dhabi National Oil Company, UAE. Part of this work was conducted at the University of Minnesota Characterization Facility, which receives partial support from the NSF through the NNIN program. We thank Prof. R. L. Penn for use of the XRD. Publisher Copyright: {\textcopyright} 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

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AU - Kumar, Prashant

AU - Li, Xinyu

AU - Al Wahedi, Yasser

AU - Mkhoyan, K. Andre

AU - Tsapatsis, Michael

AU - Stein, Andreas

N1 - Funding Information: This project is financially supported by the Gas Sub-Committee R&D arm of Abu Dhabi National Oil Company, UAE. Part of this work was conducted at the University of Minnesota Characterization Facility, which receives partial support from the NSF through the NNIN program. We thank Prof. R. L. Penn for use of the XRD. Publisher Copyright: © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2018/11/26

Y1 - 2018/11/26

N2 - 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 (Td) and octahedral (Oh) 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.

AB - 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 (Td) and octahedral (Oh) 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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KW - non-close-packed architecture

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Direct Synthesis and Pseudomorphic Transformation of Mixed Metal Oxide Nanostructures with Non-Close-Packed Hollow Sphere Arrays

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