Phase control and formation mechanism of new-phase layer-structured rhombohedral In3Se4 hierarchical nanostructures
Article
Article Title | Phase control and formation mechanism of new-phase layer-structured rhombohedral In3Se4 hierarchical nanostructures |
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ERA Journal ID | 34352 |
Article Category | Article |
Authors | Han, Guang (Author), Chen, Zhi-Gang (Author), Yang, Lei (Author), Cheng, Lina (Author), Drennan, John (Author) and Zou, Jin (Author) |
Journal Title | Crystal Growth and Design |
Journal Citation | 13 (11), pp. 5092-5099 |
Number of Pages | 8 |
Year | 2013 |
ISSN | 1528-7483 |
1528-7505 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/cg401269p |
Web Address (URL) | http://pubs.acs.org/doi/pdf/10.1021/cg401269p |
Abstract | New layer-structured rhombohedral In3Se4 hierarchical nanostructures, assembled by thin nanosheets with a thickness of ∼20 nm, are controllably synthesized by an ethylenediaminetetraacetic acid (EDTA) and ascorbic acid (AA) assisted solvothermal method in a solvent of deionized water (DIW) and ethylene glycol (EG). Detailed structural and chemical characterizations, using transmission electron microscopy and X-ray diffraction with Rietveld refinement, reveal that the new In3Se4 phase crystallizes in a layered rhombohedral structure (space group: R3̄m) with lattice parameters of a = 3.962 ± 0.001 Å and c = 39.59 ± 0.01 Å and with layers consisting of Se-In-Se-In-Se-In-Se. Through systematic investigation, the key synthesis parameters, namely, the EDTA/In mole ratio, DIW/EG volume ratio, AA dosage, and reaction temperature, are found to play vital roles in the formation of such rhombohedral hierarchical nanostructures. The investigation of intermediate products shows that the In3Se4 hierarchical nanostructures are formed by the reaction between Se microspheres and In precursors. This study provides a key method to large-scale fabrication of such a new In3Se4 phase for potential applications. |
Keywords | chemical characterization; formation mechanism; hierarchical nanostructures; intermediate product; large-scale fabrication; reaction temperature; rhombohedral structures; synthesis parameters; crystal lattice; solid state physics; organic compounds; chemical products generally; chemical reactions; chemistry; nanotechnology; optical devices and systems; water treatment techniques |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4177/phase-control-and-formation-mechanism-of-new-phase-layer-structured-rhombohedral-in3se4-hierarchical-nanostructures
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