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Fabrication and lithium storage performances of a composite of tin disulfide and ordered mesoporous carbon
Author(s) -
Hang Le Thi Thu,
Thuy Hoang Thi Bich,
Dung Dang Viet Anh,
Dung Dang Trung
Publication year - 2020
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.202000050
Subject(s) - composite number , lithium (medication) , tin , materials science , fabrication , mesoporous material , carbon fibers , nanotechnology , chemical engineering , composite material , metallurgy , chemistry , organic chemistry , catalysis , medicine , alternative medicine , pathology , engineering , endocrinology
SnS 2 has been investigated as anode material for lithium ion batteries. To obtain anode material having high capacity and long‐term lifespan, in the present work, a nanostructured composite comprising SnS 2 nanosheets and CMK‐3 ordered mesoporous carbon has been designed. The CMK‐3/SnS 2 composite is fabricated via incipient wetness impregnation, followed by chemical reduction and chemical conversion in an inert gas at high temperature. The obtained composite exhibits boosted lithium storage behaviors involving high specific capacity, fast rate response and stable cyclability. At a discharge‐charge rate of 100 mA g ‐1 , the CMK‐3/SnS 2 electrode delivers a specific capacity of 985.2 mA h g ‐1 with the utilization efficiency of SnS 2 present in the composite of 90.5 %. Even, after 500 cycles testing at higher discharge‐charge rates of 0.5 and 1 A g ‐1 , CMK‐3/SnS 2 still can maintain specific capacities of 556.2 and 402.9 mA h g ‐1 , respectively, much higher than the theoretical specific capacity of commercialized graphite anode material. This work demonstrates considerable application potential of the CMK‐3/SnS 2 anode in Li‐ion batteries.