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Issue 24, 2017
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Solution synthesis of conveyor-like MnSe nanostructured architectures with an unusual core/shell magnetic structure

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Abstract

We report for the first time one-dimensional (1D) wurtzite (WZ) MnSe nanoconveyors with a single-crystalline configuration fabricated by a solution-processed colloidal method. High-resolution transmission electron microscopy (HRTEM) measurements show that the stem of MnSe nanoconveyors grows along the [1[1 with combining macron]00] direction, while the teeth grow along the [0001] direction. We find that the initial WZ nanobelts with the [1[1 with combining macron]00] growth direction are crucial to the formation of nanoconveyors, whereas the teeth are a result of a self-catalyzed growth process induced by the Mn-terminated (0001) surface. The magnetic measurements suggest that 1D WZ MnSe nanoconveyors consist of an antiferromagnetic core and a ferromagnetic shell below the blocking temperature. Furthermore, the hysteresis measurements indicate that these nanoconveyors have 300 Oe coercive fields, which is attributed to the high surface-to-volume ratio of the nanoconveyors. This facile solution-based strategy can be anticipated to synthesize WZ metal chalcogenide nanomaterials with 1D hierarchical structures, for potential applications from spintronics to photocatalysis.

Graphical abstract: Solution synthesis of conveyor-like MnSe nanostructured architectures with an unusual core/shell magnetic structure

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Publication details

The article was received on 12 Mar 2017, accepted on 18 May 2017 and first published on 18 May 2017


Article type: Paper
DOI: 10.1039/C7CE00491E
Citation: CrystEngComm, 2017,19, 3331-3337
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    Solution synthesis of conveyor-like MnSe nanostructured architectures with an unusual core/shell magnetic structure

    X. Yang, B. Zhou, Y. Wei and B. Zou, CrystEngComm, 2017, 19, 3331
    DOI: 10.1039/C7CE00491E

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