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Local charge rearrangement to boost the chemical adsorption and catalytic conversion of polysulfides for high-performance lithium-sulfur batteries
Zhao, Tongkun1,2; Chen, Junwu1; Yuan, Menglei1,2; Dai, Kaiqing3; Zhang, Jingxian1,2; Li, Shuwei1; He, Hongyan1; Liu, Zhanjun4; Zhang, Guangjin1,2
2021-03-28
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume9Issue:12Pages:7566-7574
AbstractOwing to their high energy density and low cost, lithium-sulfur (Li-S) batteries are deemed as promising next-generation energy-storage systems. However, the practical applications of Li-S batteries are still intercepted by the notorious shuttle effect and sluggish reaction kinetics. Herein, a porous nitrogen-doped carbon nanorod embedded with ultrafine Bi nanoparticles (Bi-NC) is constructed to function as an advanced sulfur host. The existence of Bi nanoparticles induces the local charge rearrangement and hence optimizes the electronic structure of Bi-NC. As a result, Bi-NC significantly features the effective chemical adsorption and remarkable redox catalyzation for polysulfides, corroborated by both computational and experimental demonstrations. Profiting from these distinctive superiorities, the enhanced utilization of sulfur species and facilitated redox kinetics of polysulfides are achieved. Therefore, the Bi-NC/S electrode delivers a high initial capacity of 1157 mA h g(-1) at 0.5C, a superb capacity retention of 811 mA h g(-1) at 1C after 500 cycles, and an excellent areal capacity of 6.48 mA h cm(-2) even under a high-sulfur loading of 7.0 mg cm(-2). This work affords an innovational regulation of electronic structures via the local charge rearrangement for developing ideal hosts towards the practical high-performance Li-S batteries.
DOI10.1039/d0ta11880j
Language英语
Funding ProjectNational Key R&D Program of China[2020YFA0710201] ; Key Program for International S&T Cooperation Projects of China from the Ministry of Science and Technology of China[2018YFE0124600]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational Key R&D Program of China ; Key Program for International S&T Cooperation Projects of China from the Ministry of Science and Technology of China
WOS IDWOS:000635284900019
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48319
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Guangjin
Affiliation1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelet Engn, Beijing 100049, Peoples R China
3.Cent South Univ, Sch Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China
4.Chinese Acad Sci, Inst Coal Chem, CAS Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Tongkun,Chen, Junwu,Yuan, Menglei,et al. Local charge rearrangement to boost the chemical adsorption and catalytic conversion of polysulfides for high-performance lithium-sulfur batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(12):7566-7574.
APA Zhao, Tongkun.,Chen, Junwu.,Yuan, Menglei.,Dai, Kaiqing.,Zhang, Jingxian.,...&Zhang, Guangjin.(2021).Local charge rearrangement to boost the chemical adsorption and catalytic conversion of polysulfides for high-performance lithium-sulfur batteries.JOURNAL OF MATERIALS CHEMISTRY A,9(12),7566-7574.
MLA Zhao, Tongkun,et al."Local charge rearrangement to boost the chemical adsorption and catalytic conversion of polysulfides for high-performance lithium-sulfur batteries".JOURNAL OF MATERIALS CHEMISTRY A 9.12(2021):7566-7574.
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