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Adenine Derivative Host with Interlaced 2D Structure and Dual Lithiophilic-Sulfiphilic Sites to Enable High-Loading Li-S Batteries
Wu, Qingping; Zhou, Xuejun; Xu, Jun; Cao, Fahai; Li, Chilin
2019-08-01
Source PublicationACS NANO
ISSN1936-0851
Volume13Issue:8Pages:9520
SubtypeArticle
AbstractHow to simultaneously restrain the loss of active species and facilitate the conversion reaction under high S loading condition is the key to solve the commercialization of Li-S batteries. For this system, the availability of raw materials and simplicity (high efficiency) of synthetic strategies are also important factors. Herein, we propose an interlaced two-dimensional (2D) carbon material as advanced Li-S cathode host characterized by corrugated monolithic morphology and Co/N dopants as dual lithiophilic-sulfiphilic sites. This 2D structure is derived from a cheap biomass precursor, adenine, with bonding interaction with a MgCl2 hydrate template via a facile ionothermal method. It allows a homogeneous spatial distribution of S/Li2S deposits and strong adsorbability and enhanced conversion from the synergistic effects of corrugated 2D conductive matrix and embedded heteroatom/nanodot catalyst, the resultant sulfur cathode releases a high specific capacity of 1290.4 mA h g(-1) at 0.2 C, small capacity fading rate of 0.029% per cycle over 600 cycles at 2 C, superior rate performance up to 20 C, and considerable areal capacity retention of 6.0 mA h cm(-2) even under an ultrahigh sulfur loading up to 9.7 mg cm(-2).
Keywordadenine derivative host interlaced 2D structure Co/N-codoped carbon lithiophilic-sulfiphilic sites high-loading Li-S batteries
DOI10.1021/acsnano.9b04519
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26925
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wu, Qingping,Zhou, Xuejun,Xu, Jun,et al. Adenine Derivative Host with Interlaced 2D Structure and Dual Lithiophilic-Sulfiphilic Sites to Enable High-Loading Li-S Batteries[J]. ACS NANO,2019,13(8):9520.
APA Wu, Qingping,Zhou, Xuejun,Xu, Jun,Cao, Fahai,&Li, Chilin.(2019).Adenine Derivative Host with Interlaced 2D Structure and Dual Lithiophilic-Sulfiphilic Sites to Enable High-Loading Li-S Batteries.ACS NANO,13(8),9520.
MLA Wu, Qingping,et al."Adenine Derivative Host with Interlaced 2D Structure and Dual Lithiophilic-Sulfiphilic Sites to Enable High-Loading Li-S Batteries".ACS NANO 13.8(2019):9520.
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