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Synthesis of Flower‐like Cu 3 [MoO 4 ] 2 O from Cu 3 (MoO 4 ) 2 (OH) 2 and Its Application for Lithium‐Ion Batteries: Structure‐Electrochemical Property Relationships
Author(s) -
Swain Basudev,
Lee DukHee,
Kim JunSik,
Lee ChanGi,
Kim DongWan,
Park KyungSoo
Publication year - 2017
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201700499
Subject(s) - electrochemistry , materials science , orthorhombic crystal system , anode , lithium (medication) , aqueous solution , chemical engineering , annealing (glass) , fourier transform infrared spectroscopy , crystal structure , crystallography , electrode , chemistry , metallurgy , medicine , engineering , endocrinology
Flower‐like Cu 3 [MoO 4 ] 2 O microspheres have been synthesized by using a sequential process from lindgrenite (Cu 3 (MoO 4 ) 2 (OH) 2 ). Lindgrenite nanoflowers were synthesized through a simpler route by using an aqueous chemical precipitation technique at room temperature without any surfactants or template. Subsequently, 3D flower‐like Cu 3 [MoO 4 ] 2 O microspheres have been synthesized by annealing at 300 °C for 2 h from lindgrenite (Cu 3 (MoO 4 ) 2 (OH) 2 ). From the XRD pattern, FTIR spectrum, SEM and TEM analysis, flower‐like Cu 3 [MoO 4 ] 2 O (ca. 5 μm) microspheres have been obtained, which were assembled from 3–4 nm thick nanosheets with an orthorhombic structure. Application of 3D flower‐like microspheres as an anode material for lithium‐ion batteries (LIBs) has been investigated and the possible electrochemical mechanism is analyzed. Electrochemical characterization of the Cu 3 [MoO 4 ] 2 O nanoflowers as an anode material for LIBs has exhibited good cycle stability and a high coulombic efficiency during operation. The electrochemical activity was attributed to the unique structure of the Cu 3 [MoO 4 ] 2 O microspheres, which provide more active sites for Li‐ion storage as well as a reduced transfer resistance. This work has explored a simple synthesis strategy for the synthesis of flower‐like Cu 3 [MoO 4 ] 2 O microspheres without templates, additives, or surfactants, which exhibit a basis for not only high electrochemical performance in reversible Li storage, but also cycle stability.