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Issue 9, 2020
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Assembly of cerium-based coordination polymer into variant polycrystalline 2D–3D CeO2−x nanostructures

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Abstract

Precise control over the morphology of nanomaterials is critical yet challenging. The present work reports an efficient approach to tailor the architecture of nanostructures. The process involves rapid disassembly/reassembly of an unstable metal-based coordination polymer (MCP) by controlling the kinetics of the reassembly process. The synthesis procedure delivers unprecedented polycrystalline nanostructures, e.g., holey 2D CeO2−x nanosheets, with precisely tailored thicknesses in the range of 10–100 nm, and hollow 3D pseudo-octahedra and spheres. The consequent high surface areas and pore volumes, short diffusion distances, and high defect densities of the holey 2D CeO2−x indicate significant densities of active sites. This holey architecture exhibits rapid CO conversion and outstanding solar light photocatalytic performance. This approach of directed assembly offers a template-free, controllable, and cost-effective approach to achieve engineered CeO2−x architectures, which are nearly impossible through existing approaches.

Graphical abstract: Assembly of cerium-based coordination polymer into variant polycrystalline 2D–3D CeO2−x nanostructures

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Supplementary files

Article information


Submitted
31 Oct 2019
Accepted
29 Dec 2019
First published
31 Dec 2019

J. Mater. Chem. A, 2020,8, 4753-4763
Article type
Paper

Assembly of cerium-based coordination polymer into variant polycrystalline 2D–3D CeO2−x nanostructures

S. S. Mofarah, E. Adabifiroozjaei, Y. Wang, H. Arandiyan, R. Pardehkhorram, Y. Yao, M. H. N. Assadi, R. Mehmood, W. Chen, C. Tsounis, J. Scott, S. Lim, R. Webster, V. Zhong, Y. Xu, P. Koshy and C. C. Sorrell, J. Mater. Chem. A, 2020, 8, 4753
DOI: 10.1039/C9TA11961B

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