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dc.contributor.authorSong, Yingze
dc.contributor.authorSun, Zhongti
dc.contributor.authorFan, Zhaodi
dc.contributor.authorCai, Wenlong
dc.contributor.authorShao, Yuanlong
dc.contributor.authorSheng, Guan
dc.contributor.authorWang, Menglei
dc.contributor.authorSong, Lixian
dc.contributor.authorLiu, Zhongfan
dc.contributor.authorZhang, Qiang
dc.contributor.authorSun, Jingyu
dc.date.accessioned2020-02-17T10:47:35Z
dc.date.available2020-02-17T10:47:35Z
dc.date.issued2020-02-03
dc.date.submitted2020-01-03
dc.identifier.citationSong, Y., Sun, Z., Fan, Z., Cai, W., Shao, Y., Sheng, G., … Sun, J. (2020). Rational design of porous nitrogen-doped Ti3C2 MXene as a multifunctional electrocatalyst for Li–S chemistry. Nano Energy, 70, 104555. doi:10.1016/j.nanoen.2020.104555
dc.identifier.doi10.1016/j.nanoen.2020.104555
dc.identifier.urihttp://hdl.handle.net/10754/661548
dc.description.abstractThe detrimental shuttle effect and retarded sulfur reaction kinetics in lithium–sulfur (Li–S) chemistry mainly lead to inferior electrochemical performances, posing a fatal threat to the practical application of Li–S batteries. Herein, porous N-doped Ti3C2 MXene (P-NTC) has been realized by a scalable sacrificial templating route, resulting in the rational design of active electrocatalyst for Li–S chemistry. Benefiting from the superb electron conductivity, large surface area and strong interaction with lithium polysulfides (LiPSs), P-NTC can trigger the surface-mediated redox reaction of LiPSs. Moreover, the homogenous nitrogen doping on Ti3C2 gives rise to enhanced interfacial interaction with Li atom and lowered dissociation barrier for Li2S. Therefore, the template-derived P-NTC not only acts as an effective LiPS immobilizer but also serves as a multifunctional electrocatalyst to propel the nucleation and decomposition of Li2S in discharge and charge processes, respectively. As expected, thus-fabricated S/P-NTC cathode maintains a low capacity decay of only 0.033% per cycle at 2.0 C over 1200 cycles. In further contexts, our ability to tune the sulfur mass loadings enables fabricated cathodes to harvest a high areal capacity of 9.0 mAh cm−2, holding great promise in future practical applications.
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (51702225 and 21825501), Project of State Key Laboratory of Environment-Friendly Energy Materials (SWUST, Grant No. 19FKSY16), Natural Science Foundation of Jiangsu Province (BK20170336) and China Post-doctoral Foundation (7131705619). The authors acknowledge the support from Suzhou Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Suzhou, China.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S2211285520301129
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Nano Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Nano Energy, [[Volume], [Issue], (2020-02-03)] DOI: 10.1016/j.nanoen.2020.104555 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleRational design of porous nitrogen-doped Ti3C2 MXene as a multifunctional electrocatalyst for Li–S chemistry
dc.typeArticle
dc.contributor.departmentChemical Engineering
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalNano Energy
dc.rights.embargodate2022-02-03
dc.eprint.versionPost-print
dc.contributor.institutionState Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China
dc.contributor.institutionCollege of Energy, Soochow Institute for Energy and Materials InnovationS (SIEMIS), Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, Jiangsu, 215006, PR China
dc.contributor.institutionBeijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, PR China
dc.contributor.institutionCenter for Nanochemistry (CNC), College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China
kaust.personSheng, Guan
dc.date.accepted2020-01-29
dc.date.published-online2020-02-03
dc.date.published-print2020-04


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