Continuous-flow rapid and controllable microfluidic synthesis of sodium vanadium fluorophosphate as a cathode material - 文章详情页

作者：

Zheng, Limin (Zheng, Limin.) | Zhang, Dongtang (Zhang, Dongtang.) | Wang, Xiayan (Wang, Xiayan.) | Guo, Guangsheng (Guo, Guangsheng.)

收录：

EI Scopus SCIE

摘要：

Sodium　vanadium　fluorophosphate　(Na3V2O2(PO4)2F),　which　has　a　high　theoretical　capacity　and　operation　voltage,　is　a　promising　cathode　material　for　sodium　ion　batteries.　However,　its　application　is　hindered　by　the　expensive　conventional　synthetic　methods,　long　synthesis　time,　and　high　synthesis　temperature.　In　this　study,　we　developed　a　microfluidics-based　continuous-flow　strategy　for　the　rapid　and　controllable　synthesis　of　ordered　monodispersed　Na3V2O2(PO4)2F　nanospheres　and　nanosheets.　Nanospheres　were　synthesized　within　a　short　reaction　time　of　6.3　s　and　exhibited　an　excellent　rate　capability　of　114.0　mAh　g　−1　at　10　C.　Nanosheets　exhibited　outstanding　cycle　stability　of　106.1　mAh　g−1　at　10　C　and　capacity　retention　of　97.3%　after　1000　cycles.　This　work　paves　the　way　for　low-cost,　rapid,　and　large-scale　preparation　of　electrode　materials　for　rechargeable　batteries.　©　2021　Elsevier　Ltd

关键词：

Cathodes Metal ions Vanadium compounds Nanospheres Microfluidics Sodium compounds Sodium-ion batteries Fluidic logic devices Nanosheets

作者机构：

[ 1 ] [Zheng, Limin]Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Zhang, Dongtang]Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Wang, Xiayan]Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Guo, Guangsheng]Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

[zhang, dongtang]center of excellence for environmental safety and biological effects, beijing key laboratory for green catalysis and separation, department of chemistry and biology, beijing university of technology, beijing; 100124, china

电子邮件地址：

zhangdongtang@bjut.edu.cn

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