Premium
Polymer Stabilized Droplet Templating towards Tunable Hierarchical Porosity in Single Crystalline Na 3 V 2 (PO 4 ) 3 for Enhanced Sodium‐Ion Storage
Author(s) -
Xiong Hailong,
Sun Ge,
Liu Zhilin,
Zhang Ling,
Li Lin,
Zhang Wei,
Du Fei,
Qiao ZhenAn
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202100954
Subject(s) - porosity , materials science , electrolyte , chemical engineering , polymer , ion , cathode , macropore , diffusion , ionic bonding , template , single crystal , nanotechnology , electrode , crystallography , chemistry , composite material , catalysis , organic chemistry , mesoporous material , engineering , physics , thermodynamics
Na 3 V 2 (PO 4 ) 3 (NVP) is regarded as a potential cathode material for sodium‐ion batteries, whereas, its performance is usually limited by inherent low electronic conductivity and dense bulk structure. Herein, we develop a facile polymer stabilized droplet template strategy to synthesize porous single crystal structured NVP. The pore structures (macrostructures, hierarchically meso/macrostructures, and mesostructures), pore sizes (5–2000 nm), and specific surface areas (26–158 m 2 g −1 ) of the samples can be readily controlled by tuning the sizes of droplet templates. The resultant hierarchically meso/macropores NVP demonstrates superior sodium storage performances, because its porous single crystal structure owns solid–liquid Na + transmission mode, shortens ion diffusion distance and provides large electrode–electrolyte contact area, greatly facilitating fast ionic transport. We believe the presented method will supply a novel avenue to prepare porous single crystal structured materials for anticipative applications.