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A New Polyoxometalate (POM)‐Based Composite: Fabrication through POM‐Assisted Polymerization of Dopamine and Properties as Anode Materials for High‐Performance Lithium‐Ion Batteries
Author(s) -
Ding YanHong,
Peng Jun,
Khan ShifaUllah,
Yuan Yue
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201700773
Subject(s) - polyoxometalate , anode , materials science , composite number , lithium (medication) , fabrication , electrochemistry , chemical engineering , polymerization , current density , hydrothermal circulation , nanotechnology , electrode , composite material , catalysis , chemistry , organic chemistry , polymer , medicine , alternative medicine , physics , pathology , quantum mechanics , engineering , endocrinology
Organic substrates are indispensable in the fabrication of multifunctional polyoxometalate (POM)‐based composites for various applications. A new molybdovanadophosphoric heteropolyacid (PMo 10 V 2 )‐based polydopamine (PDA) composite (PMo 10 V 2 /PDA) is first synthesized through a facile, in situ polymerization method under hydrothermal conditions, without the addition of extra buffer solution. The obtained PMo 10 V 2 /PDA composite shows homogeneous microsphere morphology. Through utilization of the adhesive ability of PDA, the composite can be used as an anode material without additional binder for rechargeable lithium‐ion batteries. Excellent electrochemical performances are obtained, with a high, stable specific capacity of 915.3 mA h g −1 at a current density of 100 mA g −1 , remarkable rate capability, and good cycling stability (≈93 % capacity retention after 300 cycles at a high current density of 1000 mA g −1 ).