期刊
ADVANCED COMPOSITES AND HYBRID MATERIALS
卷 5, 期 3, 页码 2601-2610出版社
SPRINGERNATURE
DOI: 10.1007/s42114-022-00535-x
关键词
CoMoP2; MoP heterostructures; N; P co-doped carbon nanosheets; Anode materials; Electrochemistry; Lithium-ion batteries
资金
- National Natural Science Foundation of China [51971119, 52171141]
- Natural Science Foundation of Shandong Province [ZR2020YQ32, ZR2020QB122]
- China Postdoctoral Science Foundation [2020M672054]
- Guangdong Basic and Applied Basic Research Foundation [2021A1515111124]
- Young Scholars Program of Shandong University [2019WLJH21]
- Project of Introducing Urgently Needed Talents in Key Supporting Regions of Shandong Province [2203-371703-04-01-786537]
This research explores the use of a sandwich-like architecture to design a composite anode material with CoMoP2 and MoP nanoparticles. By using a co-doped N, P carbon matrix and doped micro-lamellated carbon sheets, the lithium ion and electron transport efficiency is improved, and the volume changes of the active material are reduced, enhancing the electrochemical activity of the anode.
Transition metal phosphides as ideal anodes have been attracted a large number of interests due to their excellent performance for lithium-ion batteries. Nevertheless, CoMoP2 materials were rarely reported as lithium-ion battery anode materials. Thereupon, to excavate their ability in LIBs, a sandwich-like architecture was employed as anode material, in which heterostructured CoMoP2 and MoP nanoparticles were coated on N, P co-doped carbon matrix. Notably, doped micro-lamellated carbon sheets could not only allow boosted lithium ion and electron transport but also alleviate the volume changes of active material to sustain anode integrity during the discharge/charge processes. More importantly, the combination of CoMoP2 and MoP nanoparticles could synergically strengthen the electrochemical activities of the anodes, and their built-in heterojunction facilitated the reaction kinetics on their interfaces. This research may offer a rational design on both heterostructure and doping engineering of future anodes for lithium-ion batteries.
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