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DOI	10.1039/c6ee02641a
	Self-polymerized dopamine as an organic cathode for Li- and Na-ion batteries
	Liu T.; Kim K.C.; Lee B.; Chen Z.; Noda S.; Jang S.S.; Lee S.W.
发表日期	2017
ISSN	17545692
起始页码	205
结束页码	215
卷号	10 期号:1
英文摘要	Self-polymerized dopamine is a versatile coating material that has various oxygen and nitrogen functional groups. Here, we demonstrate the redox-active properties of self-polymerized dopamine on the surface of few-walled carbon nanotubes (FWNTs), which can be used as organic cathode materials for both Li- and Na-ion batteries. We reveal the multiple redox reactions between self-polymerized dopamine and electrolyte ions in the high voltage region from 2.5 to 4.1 V vs. Li using both density functional theory (DFT) calculations and electrochemical measurements. Free-standing and flexible hybrid electrodes are assembled using a vacuum filtration method, which have a 3D porous network structure consisting of polydopamine coated FWNTs. The hybrid electrodes exhibit gravimetric capacities of ∼133 mA h g-1 in Li-cells and ∼109 mA h g-1 in Na-cells utilizing double layer capacitance from FWNTs and multiple redox-reactions from polydopamine. The polydopamine itself within the hybrid film can store high gravimetric capacities of ∼235 mA h g-1 in Li-cells and ∼213 mA h g-1 in Na-cells. In addition, the hybrid electrodes show a high rate-performance and excellent cycling stability, suggesting that self-polymerized dopamine is a promising cathode material for organic rechargeable batteries. © The Royal Society of Chemistry 2017.
英文关键词	Amines; Capacitance; Cathodes; Density functional theory; Electrochemical electrodes; Electrolytes; Ions; Neurophysiology; Polymers; Redox reactions; Yarn; Double-layer capacitance; Electrochemical measurements; Few-walled carbon nanotubes; Gravimetric capacity; High-rate performance; Organic cathode materials; Porous network structures; Redox-active properties; Sodium-ion batteries; cation; coating; electrochemical method; electrode; electrolyte; fullerene; inorganic compound; oxygen; polymerization; power generation; redox conditions
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190568
作者单位	G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405, United States; Computational NanoBio Technology Laboratory, School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245, United States; Department of Applied Chemistry, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
推荐引用方式 GB/T 7714	Liu T.,Kim K.C.,Lee B.,et al. Self-polymerized dopamine as an organic cathode for Li- and Na-ion batteries[J],2017,10(1).
APA	Liu T..,Kim K.C..,Lee B..,Chen Z..,Noda S..,...&Lee S.W..(2017).Self-polymerized dopamine as an organic cathode for Li- and Na-ion batteries.Energy & Environmental Science,10(1).
MLA	Liu T.,et al."Self-polymerized dopamine as an organic cathode for Li- and Na-ion batteries".Energy & Environmental Science 10.1(2017).