文献类型：期刊文献

英文题名：Enhancement of Organic Oxygen Atoms on Metal Cobalt for Sulfur Adsorption and Catalytic Polysulfide Conversion

作者：Gao, Ruili Ji, Shan Wang, Fanghui Wang, Kunpeng Wang, Hui Ma, Xianguo Linkov, Vladimir Wang, Xuyun Wang, Rongfang

第一作者：Gao, Ruili

通信作者：Wang, RF[1];Ji, S[2];Wang, KP[3];Ma, XG[4]

机构：[1]Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China;[2]Univ Western Cape, South African Inst Adv Mat Chem, ZA-7535 Cape Town, South Africa;[3]Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China;[4]Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Opticelectr Sensing & Analyt Chem Life Sci, MOE, Qingdao 266042, Peoples R China;[5]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China

第一机构：Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China

通信机构：corresponding author), Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China;corresponding author), Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China;corresponding author), Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Opticelectr Sensing & Analyt Chem Life Sci, MOE, Qingdao 266042, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2023

卷号：15

期号：16

起止页码：20141-20150

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20231814040130);Scopus(收录号：2-s2.0-85154022660);WOS:【SCI-EXPANDED(收录号:WOS:000980569600001)】；

基金：? ACKNOWLEDGMENTS The authors thank the National Natural Science Foundation of China (51963004) , the Natural Science Foundation of Shandong Province of China (ZR2020MB024) , and the Open Project Program of Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University (No. EFMD2021001Z) , for financially supporting this work.

语种：英文

外文关键词：sulfur fixation; perylenequinone; chemisorption; cathode; lithium-sulfur battery

摘要：Metals and their compounds effectively suppress the poly -sulfide shuttle effect on the cathodes of a lithium-sulfur (Li-S) battery by chemisorbing polysulfides and catalyzing their conversion. However, S fixation on currently available cathode materials is below the requirements of large-scale practical application of this battery type. In this study, perylenequinone was utilized to improve polysulfide chemisorption and conversion on cobalt (Co)-containing Li-S battery cathodes. According to IGMH analysis, the binding energies of DPD and carbon materials as well as polysulfide adsorption were significantly enhanced in the presence of Co. According to in situ Fourier transform infrared spectroscopy, the hydroxyl and carbonyl groups in perylenequinone are able to form O-Li bonds with Li2Sn, facilitating chemisorption and catalytic conversion of polysulfides on metallic Co. The newly prepared cathode material demonstrated superior rate and cycling performances in the Li-S battery. It exhibited an initial discharge capacity of 780 mAh g-1 at 1 C and a minimum capacity decay rate of only 0.041% over 800 cycles. Even with a high S loading, the cathode material maintained an impressive capacity retention rate of 73% after 120 cycles at 0.2 C.