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CoFe Alloy-Decorated Interlayer with a Synergistic Catalytic Effect Improves the Electrochemical Kinetics of Polysulfide Conversion
Gao, Ning1,2; Li, Bao3; Zhang, Yujiao1; Li, Wenbiao1; Li, Xue1; Zhao, Jie1,2; Yue, Wence4; Xing, Zhenyu; Wang, Bao1,2
2021-12-08
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume13Issue:48Pages:57193-57203
AbstractGood electrical conductivity, strong catalytic activity, high interaction with lithium polysulfides (LIPSs), simple method, and low cost should be considered for the design and preparation of high-performance electrochemical catalysts that catalyze the conversion of LIPSs. In this work, we designed a bimetallic alloyed multifunctional interlayer with multiple adsorption/catalysis sites. The interwoven carbon fibers derived from bacterial cellulose (BC) not only contribute to reducing metal ions to metals but also confine the growth of Co-Fe alloys formed in situ. The metal supported on carbon is very effective for the conversion of LIPSs due to its high adsorption and catalytic sites. In addition, the synergistic effect between Fe and Co species leads to excellent bifunctional catalytic activity. Through detailed electrochemical analysis and theoretical calculations, we revealed that CoFe@CNFs has superior electrocatalytic activity, and the lithium-sulfur (Li-S) batteries with a catalytic interlayer can deliver satisfactory rate and cycle performance. At a high current density of 2C, the discharge capacity can still reach 627 mAh g(-1). At a current density of 1C, the Coulombic efficiency is maintained at a level close to 100% during the whole cycle process and a satisfying low capacity decay of 0.08% per cycle. More importantly, even if the ambient temperature drops to 0 degrees C, the Li-S battery using the interlayer can still be charged and discharged normally and shows acceptable discharge capacity, which shows that it has good rate kinetics.
Keywordlithium-sulfur batteries interlayer CoFe alloy electrocatalyst bacterial cellulose electrochemical kinetics
DOI10.1021/acsami.1c17374
Language英语
WOS KeywordLITHIUM-SULFUR ; CARBON ; PERFORMANCE ; NITROGEN ; NANOSHEETS ; CELLULOSE
Funding ProjectNational Natural Science Foundation of China[51772296] ; National Natural Science Foundation of China[22002045] ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry[E0010718]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry
WOS IDWOS:000752970600040
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/52025
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Yujiao; Xing, Zhenyu; Wang, Bao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Nanjing IPE Inst Green Mfg Ind, Nanjing 211135, Peoples R China
3.Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China
4.Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
Recommended Citation
GB/T 7714
Gao, Ning,Li, Bao,Zhang, Yujiao,et al. CoFe Alloy-Decorated Interlayer with a Synergistic Catalytic Effect Improves the Electrochemical Kinetics of Polysulfide Conversion[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(48):57193-57203.
APA Gao, Ning.,Li, Bao.,Zhang, Yujiao.,Li, Wenbiao.,Li, Xue.,...&Wang, Bao.(2021).CoFe Alloy-Decorated Interlayer with a Synergistic Catalytic Effect Improves the Electrochemical Kinetics of Polysulfide Conversion.ACS APPLIED MATERIALS & INTERFACES,13(48),57193-57203.
MLA Gao, Ning,et al."CoFe Alloy-Decorated Interlayer with a Synergistic Catalytic Effect Improves the Electrochemical Kinetics of Polysulfide Conversion".ACS APPLIED MATERIALS & INTERFACES 13.48(2021):57193-57203.
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