Surface Anionization on Self-Assembled Iron Sulfides Hierarchitectures to Enhance Capacitive Storage for Alkaline-Metal-Ion Batteries.

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ID: 59077
2019
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Abstract
Due to the ever-growing demand for cost-effective batteries towards greener and sustainable applications, emerging efforts have been devoted to tailoring the interfacial kinetics of electrode materials. Herein, surface anionization has been introduced for iron sulfides hierarchical assembly on 3D graphene foam (denoted as FeS2@3DGF and FeS@3DGF). The surface anchored sulfate species provide ideal electroactive sites, which is correlated with enhanced capacitive contribution and boosted energy storage. Consequently, remarkable rate capability and stable cyclability can be achieved in alkaline-metal-ion batteries. Specifically, FeS@3DGF displays superb cycling stability when evaluated as anodes for Li-ion batteries (a steady capacity of 1109 mAh g-1 after 200 cycles at 200 mA g-1). Moreover, superior rate capability can be achieved for Na-ion batteries (203 mAh g-1 at 10 000 mA g-1). These findings provide new insights into reinforcing interface kinetics during electrochemical processes and hold great promise for versatile applications in the future.
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huang2019surfaceacs Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Huang, Aoming;Wang, Qingqing;Ma, Zhongyuan;Rui, Kun;Huang, Xiao;Zhu, Jixin;Huang, Wei;
Journal ACS applied materials & interfaces
Year 2019
DOI
10.1021/acsami.9b13629
URL
Keywords
pseudarthrosis surgical technique electrical stimulation spinal fusion nonunion ccs = capacitive coupling stimulation dcs = direct current stimulation ics = inductive coupling stimulation pemf = pulsed electromagnetic field

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