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Heightened Integration of POM‐based Metal–Organic Frameworks with Functionalized Single‐Walled Carbon Nanotubes for Superior Energy Storage
Author(s) -
Li Xiao,
Zhou KunFeng,
Tong ZhiBo,
Yang XiYa,
Chen CuiYing,
Shang XueHui,
Sha JingQuan
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201901143
Subject(s) - materials science , nanocomposite , carbon nanotube , anode , lithium (medication) , electrochemistry , electrolyte , energy storage , electrode , nanotechnology , chemical engineering , surface modification , composite number , polyoxometalate , composite material , organic chemistry , catalysis , chemistry , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering
To increase the conductivity of polyoxometalate‐based metal–organic frameworks (POMOFs) and promote their applications in the field of energy storage, herein, a simple approach was employed to improve their overall electrochemical performances by introducing a functionalized single‐walled carbon nanotubes (SWNT‐COOH). A new POMOF compound, [Cu 18 (trz) 12 Cl 3 (H 2 O) 2 ][PW 12 O 40 ] (CuPW), was successfully synthesized, then the size‐matched functionalized SWNT–COOH was introduced to fabricate CuPW/SWNT–COOH composite (PMNT–COOH) by employing a simple sonication‐driven periodic functionalization strategy. When the PMNT–COOH nanocomposite was used as the anode material for Lithium‐ion batteries (LIBs), PMNT–COOH( 3 ) (CuPWNC:SWNT‐COOH=3:1) showed superior behavior of energy storage, a high reversible capacity of 885 mA h g −1 up to a cycle life of 170 cycles. The electrochemical results indicate that the uniform packing of SWNT–COOH provided a favored contact between the electrolyte and the electrode, resulting in enhanced specific capacity during lithium insertion/extraction process. This fabrication of PMNT–COOH nanocomposite opens new avenues for the design and synthesis of new generation electrode materials for LIBs.