期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 125, 期 43, 页码 24060-24066出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.1c06007
关键词
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资金
- National Natural Science Foundation of China [21872055, 21874045, 21902049]
- Shanghai Sailing Program [19YF1413000]
- Shanghai Science and technology innovation action plan [19142202900]
- Fundamental Research Funds for Central Universities
- Open Foundation of ECNU [42125102]
The microscopic chemical environment of Na in Na3V2(PO4)(3) was observed and analyzed using solid-state nuclear magnetic resonance. Two chemical environments of Na were identified in Na3V2(PO4)(3), with one peak assigned to impurities possibly containing sodium carbonate. The Na-23 spectra of Na3V2(PO4)(3) under different charging and discharging conditions were investigated and well explained based on the new assignment.
The microscopic chemical environment of Na in Na3V2(PO4)(3) was observed and analyzed using solid-state nuclear magnetic resonance. The results demonstrated that Na in the two chemical environments in Na3V2(PO4)(3) corresponded to the signal peaks between 80 and 16 ppm in the Na-23 NMR spectrum. The peak at around -11 ppm was assigned to impurities, possibly containing sodium carbonate. On basis of the new assignment, the Na-23 spectra of Na3V2(PO4)(3) under different charging and discharging conditions were investigated and well explained.
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