CTAB-Assisted Synthesis of C@Na3V2(PO4)2F3 With Optimized Morphology for Application as Cathode Material for Na-Ion Batteries

被引：23

作者：

Criado, Ana ^{[1
]}

Lavela, Pedro ^{[1
]}

Ortiz, Gregorio F. ^{[1
]}

Tirado, Jose L. ^{[1
]}

Gzouli, Somaya ^{[2
]}

Edfouf, Zineb ^{[2
]}

Perez-Vicente, Carlos ^{[1
]}

机构：

[1] Univ Cordoba, Dept Quim Inorgan & Ingn Quim, Inst Univ Invest Quim Fina & Nanoquim, Cordoba, Spain

[2] Univ Mohammed 5, Fac Sci, Mat & Nanomat Photovolta Convers & Electrochem St, Rabat, Morocco

来源：

FRONTIERS IN PHYSICS | 2019年 / 7卷

关键词：

sodium-ion batteries; insertion electrode; polyanionic materials; surfactant-assisted synthesis; particle morphology; ENERGY-STORAGE TECHNOLOGIES; ELECTROCHEMICAL PERFORMANCE; LITHIUM-ION; NA3V2(PO4)(2)F-3 CATHODE; HIGH-POWER; SODIUM; RAMAN; TRANSITIONS; CAPABILITY; STABILITY;

D O I：

10.3389/fphy.2019.00207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

C@Na3V2(PO4)(2)F-3 samples were obtained by using Cetyl Trimethyl Ammonium Bromide (CTAB) as a surfactant. The optimization of the added amount allowed controlling the eventual nanometric morphology of the particles. The morphological and structural properties of these samples were discussed in the light of solid-state techniques as X-ray diffraction, Raman and XPS spectroscopies, and electron microscopy. Galvanostatic test in sodium half-cells revealed that the nanometric spherical and porous particles provided by the addition of intermediate amounts of CTAB showed excellent cycling stability and superior high rate capability reflected in the minimization of the cell polarization and the determination of a high apparent diffusion coefficient.

引用

页数：10

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[1] RAMAN AND INFRARED-SPECTRA OF SOME CHROMIUM NASICON-TYPE MATERIALS - SHORT-RANGE DISORDER CHARACTERIZATION [J].