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Issue 5, 2018
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Self-polymerized hollow Mo-dopamine complex-induced functional MoSe2/N-doped carbon electrodes with enhanced lithium/sodium storage properties

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Abstract

Self-polymerized hollow Mo-dopamine (PDA-Mo) spherical composites are appealing precursors for constructing robust N-doped carbon-encased Mo-containing electrode materials. Here, a method involving facile chemical precipitation combined with vapor selenization processes has been developed to prepare three-dimensional (3D) hierarchical MoSe2/N-doped carbon microsphere composites. The developed synthetic process eliminates the use of an expensive carbon matrix and toxic reagents, and the preliminary preparation of templates, and is deemed a facile, green, and cost-effective route to fabricate 3D hierarchical architectures. The as-synthesized hierarchical MoSe2/N-doped carbon microsphere composites are constructed from sheet-like MoSe2 layers that are encased by amorphous N-doped carbon. As expected, the as-synthesized 3D hierarchical MoSe2/N-doped carbon microsphere composites have excellent rate capacity (1500 and 600 mA h g−1 at 0.1 A g−1 and 10 A g−1, respectively) and long-life cycling stability (141.7 mA h g−1 remains even after 2000 cycles at 30 A g−1). Besides, the as-synthesized hierarchical MoSe2/N-doped carbon microsphere composites deliver a high capacity of about 570 mA h g−1 at 0.1 A g−1 when used as sodium-ion battery anode materials. Our work provides a successful approach for fabricating 3D hierarchical architectures applying simple synthetic methods, which could shed some light on future research pertaining to the construction of high-performance electrode materials.

Graphical abstract: Self-polymerized hollow Mo-dopamine complex-induced functional MoSe2/N-doped carbon electrodes with enhanced lithium/sodium storage properties

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Publication details

The article was received on 03 Feb 2018, accepted on 09 Mar 2018 and first published on 12 Mar 2018


Article type: Research Article
DOI: 10.1039/C8QI00101D
Citation: Inorg. Chem. Front., 2018,5, 1026-1032
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    Self-polymerized hollow Mo-dopamine complex-induced functional MoSe2/N-doped carbon electrodes with enhanced lithium/sodium storage properties

    C. Zhao, H. Song, Q. Zhuang, Q. Ma, J. Liang, H. Peng, C. Mao, Z. Zhang and G. Li, Inorg. Chem. Front., 2018, 5, 1026
    DOI: 10.1039/C8QI00101D

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