| Residential College | false |
| Status | 已發表Published |
| Interfacial “Double-Terminal Binding Sites” Catalysts Synergistically Boosting the Electrocatalytic Li2S Redox for Durable Lithium–Sulfur Batteries | |
HUI KWUN NAM1  ; Qingbin Jiang1; Kwan San Hui2 ; Shuo Wang1; Lingwen Liu1; Tianyu Chen1; Yunshan Zheng1; Weng Fai Ip Weng F4; Duc Anh Dinh Duc Anh D5; Chenyang Zha1; Zhan Lin3; Kwun Nam Hui1
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| 2024-03 | |
| Source Publication | ACS Nano
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| Volume | 18Issue:12Pages:8839 |
| Abstract | Catalytic conversion of polysulfides emerges as a promising approach to improve the kinetics and mitigate polysulfide shuttling in lithium–sulfur (Li–S) batteries, especially under conditions of high sulfur loading and lean electrolyte. Herein, we present a separator architecture that incorporates double-terminal binding (DTB) sites within a nitrogen-doped carbon framework, consisting of polar Co0.85Se and Co clusters (Co/Co0.85Se@NC), to enhance the durability of Li–S batteries. The uniformly dispersed clusters of polar Co0.85Se and Co offer abundant active sites for lithium polysulfides (LiPSs), enabling efficient LiPS conversion while also serving as anchors through a combination of chemical interactions. Density functional theory calculations, along with in situ Raman and X-ray diffraction characterizations, reveal that the DTB effect strengthens the binding energy to polysulfides and lowers the energy barriers of polysulfide redox reactions. Li–S batteries utilizing the Co/Co0.85Se@NC-modified separator demonstrate exceptional cycling stability (0.042% per cycle over 1000 cycles at 2 C) and rate capability (849 mAh g–1 at 3 C), as well as deliver an impressive areal capacity of 10.0 mAh cm–2 even in challenging conditions with a high sulfur loading (10.7 mg cm–2) and lean electrolyte environments (5.8 μL mg–1). The DTB site strategy offers valuable insights into the development of high-performance Li–S batteries. |
| Document Type | Journal article |
| Collection | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Corresponding Author | Kwan San Hui; Zhan Lin; Kwun Nam Hui |
| Affiliation | 1.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078, China 2.School of Engineering, Faculty of Science, University of East Anglia, Norwich, UK 3.School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People’s Republic of China 4.Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Taipa, Macau SAR 999078, People’s Republic of China 5.NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam |
| First Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Corresponding Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Recommended Citation GB/T 7714 | HUI KWUN NAM,Qingbin Jiang,Kwan San Hui,et al. Interfacial “Double-Terminal Binding Sites” Catalysts Synergistically Boosting the Electrocatalytic Li2S Redox for Durable Lithium–Sulfur Batteries[J]. ACS Nano, 2024, 18(12), 8839. |
| APA | HUI KWUN NAM., Qingbin Jiang., Kwan San Hui., Shuo Wang., Lingwen Liu., Tianyu Chen., Yunshan Zheng., Weng Fai Ip Weng F., Duc Anh Dinh Duc Anh D., Chenyang Zha., Zhan Lin., & Kwun Nam Hui (2024). Interfacial “Double-Terminal Binding Sites” Catalysts Synergistically Boosting the Electrocatalytic Li2S Redox for Durable Lithium–Sulfur Batteries. ACS Nano, 18(12), 8839. |
| MLA | HUI KWUN NAM,et al."Interfacial “Double-Terminal Binding Sites” Catalysts Synergistically Boosting the Electrocatalytic Li2S Redox for Durable Lithium–Sulfur Batteries".ACS Nano 18.12(2024):8839. |
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