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DC Field | Value | Language |
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dc.citation.endPage | 1703 | - |
dc.citation.startPage | 1694 | - |
dc.citation.title | JOURNAL OF COLLOID AND INTERFACE SCIENCE | - |
dc.citation.volume | 653 | - |
dc.contributor.author | Sun, Longhua | - |
dc.contributor.author | Gong, Wenbin | - |
dc.contributor.author | Zhou, Ji | - |
dc.contributor.author | Zhang, Jiawen | - |
dc.contributor.author | Chen, Chao | - |
dc.contributor.author | Meng, Xiaodong | - |
dc.contributor.author | Han, Xinyi | - |
dc.contributor.author | Mai, Hairong | - |
dc.contributor.author | Bielawski, Christopher W. | - |
dc.contributor.author | Geng, Jianxin | - |
dc.date.accessioned | 2024-01-03T14:05:10Z | - |
dc.date.available | 2024-01-03T14:05:10Z | - |
dc.date.created | 2023-12-08 | - |
dc.date.issued | 2024-01 | - |
dc.description.abstract | While transition metal nitrides (TMNs) are promising electrocatalysts, their widespread use is challenged by the complex synthetic methodology and a limited understanding of the underlying electrocatalytic mechanisms. Herein, we describe a novel synthesis of TMNs (including Mo2N, NbN, and ZrN) and explore their potential as electrocatalysts to affect sulfur cathode reactions. The TMNs were prepared in-situ using a process that simultaneously infuses nitrogen-doped porous graphitic carbon (designated as TMN@N-PGC). The methodology avoids the use of ammonia, which poses safety risks due to its flammability and toxicity. Analysis of the d-p hybridized orbitals formed between the transition metal ions and sulfur species revealed that the antibonding orbitals are empty. Thus, TMNs with more negative d-band centers exhibit stronger affinities towards polysulfides. NbN facilitated polysulfide conversion as well as Li2S detachment, and thus featured a high electrocatalytic capability for promoting cathode kinetics. Lithium-sulfur (Li-S) batteries containing NbN@N-PGC exhibited the highest performance metrics in terms of specific capacity (1488 mA h g-1 at 0.1 C), rate capacity (521 mA h g-1 at 6 C), and cycling stability (603 mA h g-1 at 0.5 C after 1300 cycles, corresponding a capacity decay of 0.030% per cycle). Li-S cells with high sulfur loadings also exhibit outstanding performance. | - |
dc.identifier.bibliographicCitation | JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.653, pp.1694 - 1703 | - |
dc.identifier.doi | 10.1016/j.jcis.2023.09.167 | - |
dc.identifier.issn | 0021-9797 | - |
dc.identifier.scopusid | 2-s2.0-85173512579 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/67557 | - |
dc.identifier.wosid | 001099755700001 | - |
dc.language | 영어 | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.title | Transition metal nitrides embedded in N-doped porous graphitic Carbon: Applications as electrocatalytic sulfur host materials | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Transition metal nitrides | - |
dc.subject.keywordAuthor | Porous graphitic carbon | - |
dc.subject.keywordAuthor | Li-S batteries | - |
dc.subject.keywordAuthor | Electrocatalytic capability | - |
dc.subject.keywordAuthor | D -p orbital hybridization | - |
dc.subject.keywordPlus | X-RAY-ABSORPTION | - |
dc.subject.keywordPlus | CHEMISORPTION | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | CATHODE | - |
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