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| Cobalt-doped hierarchical porous carbon materials with spherical chrysanthemum-like structures that are derived from the PVP-assisted synthesis of metal organic frameworks for advanced Li-S batteries | |
| Qian, Weiwei1; Tan, Yanli2; Yu, Youchun1; Zhang, Lan1; Wu, Xiangkun1; Xue, Bing1 | |
| 2022-10-15 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 918Pages:12 |
| Abstract | Porous carbon materials with spherical chrysanthemum-like structures can be self-doped with low-cost cobalt (Co-SCPC) by carbonizing metal organic framework materials (MOFs) at high temperatures with PVP (polyvinyl pyrrolidone) as a template in an inert atmosphere. The unique multilevel structure of zero dimensional hollow spheres and two-dimensional overlapping lamellae effectively alleviates the shuttle effect of polysulfides by physical encapsulation. The optimized porous carbon material exhibits a high specific surface area and abundant mesopores and macropores, which is conducive to the dispersion of active materials, rapid transfer of Li+ and improvement of the utilization of elemental sulfur. Moreover, cobalt doping with coordinately unsaturated metal sites can enhance the interaction between the matrix material and polysulfides, further catalyze the conversion reaction of active materials and improve the rate performance of Li-S batteries. Co-SCPC as the cathode matrix material exhibits high initial capacities of 1292.5 and 992.7 mAh g(-1) at 0.1 C and 1 C, respectively. The remaining capacity is 402.1 mAh g-1 after 1500 cycles at 1 C. Furthermore, the battery also shows an outstanding rate performance, with an initial capacity of 416.4 mAh g(-1) and a remaining capacity of 339.7 mAh g(-1) after 500 cycles at a rate of 5 C. (c) 2022 Elsevier B.V. All rights reserved. |
| Keyword | MOFs Lithium sulfur batteries Co-doping High rate |
| DOI | 10.1016/j.jallcom.2022.165741 |
| Language | 英语 |
| WOS Keyword | LITHIUM-SULFUR BATTERIES ; ANODE MATERIALS ; OXIDE ; POLYSULFIDES ; POLYHEDRA ; ELECTRODE ; STRATEGY ; CATHODES ; SKELETON |
| Funding Project | Natural Science Foundation of China[21808228] ; Natural Science Foundation of China[22078341] ; National Key Research and Development Program of China[2019YFA0705600] ; Natural Science Foundation of Shandong Province[ZR2019PB016] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | Natural Science Foundation of China ; National Key Research and Development Program of China ; Natural Science Foundation of Shandong Province |
| WOS ID | WOS:000816140600003 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/54077 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Qian, Weiwei |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 2.Qingdao Univ, Sch Chem & Chem Engn, Qingdao 266071, Peoples R China |
| Recommended Citation GB/T 7714 | Qian, Weiwei,Tan, Yanli,Yu, Youchun,et al. Cobalt-doped hierarchical porous carbon materials with spherical chrysanthemum-like structures that are derived from the PVP-assisted synthesis of metal organic frameworks for advanced Li-S batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,918:12. |
| APA | Qian, Weiwei,Tan, Yanli,Yu, Youchun,Zhang, Lan,Wu, Xiangkun,&Xue, Bing.(2022).Cobalt-doped hierarchical porous carbon materials with spherical chrysanthemum-like structures that are derived from the PVP-assisted synthesis of metal organic frameworks for advanced Li-S batteries.JOURNAL OF ALLOYS AND COMPOUNDS,918,12. |
| MLA | Qian, Weiwei,et al."Cobalt-doped hierarchical porous carbon materials with spherical chrysanthemum-like structures that are derived from the PVP-assisted synthesis of metal organic frameworks for advanced Li-S batteries".JOURNAL OF ALLOYS AND COMPOUNDS 918(2022):12. |
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