Open AccessCarbon-Coated SnO2/Ti3C2 Composites with Enhanced Lithium Storage Performance
Author(s) -
Zijing Wang,
Fen Wang,
Kaiyu Liu,
Jianfeng Zhu,
Waras Abdul
Publication year - 2019
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2019/9082132
Subject(s) - materials science , tin , nanocomposite , calcination , anode , lithium (medication) , carbon fibers , tin oxide , amorphous solid , composite material , composite number , oxide , electrode , chemical engineering , metallurgy , catalysis , medicine , biochemistry , chemistry , organic chemistry , engineering , endocrinology
Tin-based anode materials including oxides, composites oxides, and tin-based alloys are identified as promising candidates for energy storage attributed to the highest theoretical specific capacity. We introduce Ti 3 C 2 -MXene as structural skeletons and amorphous carbon as conductive networks for tin oxide in this work. Herein, carbon-coated kernel-like SnO 2 coupling with two-dimensional (2D) layered structure Ti 3 C 2 -MXene (C@SnO 2 /Ti 3 C 2 ) composites were prepared by a hydrothermal reaction and a further calcination process. The fabricated C@SnO 2 /Ti 3 C 2 nanocomposites exhibit smaller charge transfer resistance, larger Li + diffusion coefficient, and better cycling stability than SnO 2 /Ti 3 C 2 and pure Ti 3 C 2 . Most of all, C@SnO 2 /Ti 3 C 2 nanocomposites display excellent initial capacity of 1531.5 mAh g −1 at current density of 100 mA g −1 and show outstanding rate performance of 540 mAh g −1 even after 200 cycles. In our work, we will provide a new research idea for the composite materials of metal oxides and two-dimensional layered materials in the field of electrode materials for batteries.