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Open AccessArticle

Novel Mesoporous Flowerlike Iron Sulfide Hierarchitectures: Facile Synthesis and Fast Lithium Storage Capability

College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Nanomaterials 2017, 7(12), 431; https://doi.org/10.3390/nano7120431
Received: 8 November 2017 / Revised: 28 November 2017 / Accepted: 1 December 2017 / Published: 6 December 2017
(This article belongs to the Special Issue Three-dimensional Nanomaterials for Energy Storage and Conversions)
The 3D flowerlike iron sulfide (F-FeS) is successfully synthesized via a facile one-step sulfurization process, and the electrochemical properties as anode materials for lithium ion batteries (LIBs) are investigated. Compared with bulk iron sulfide, we find that the unique structural features, overall flowerlike structure, composed of several dozen nanopetals and numerous small size iron sulfide particles embedded within the fine nanopetals, and hierarchical pore structure features provide signification improvements in lithium storage performance, with a high-rate discharge capacity of 779.0 mAh g−1 at a rate of 5 A g−1, due to effectively alleviating the volume expansion during the lithiation/delithiation process, and shorting the diffusion length of both lithium ion and electron. Especially, an excellent cycling stability are achieved, a high discharge capacity of 890 mAh g−1 retained at a rate of 1.0 A g−1, suggesting its promising applications in lithium ion batteries (LIBs). View Full-Text
Keywords: iron sulfide; three-dimensional flowerlike structure; hierarchical pore structure; lithium ion batteries iron sulfide; three-dimensional flowerlike structure; hierarchical pore structure; lithium ion batteries
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MDPI and ACS Style

Ma, Q.; Zhuang, Q.; Liang, J.; Zhang, Z.; Liu, J.; Peng, H.; Mao, C.; Li, G. Novel Mesoporous Flowerlike Iron Sulfide Hierarchitectures: Facile Synthesis and Fast Lithium Storage Capability. Nanomaterials 2017, 7, 431.

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