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A Nanosheet Array of Cu2Se Intercalation Compound with Expanded Interlayer Space for Sodium Ion Storage
Xiao, Yuanhua; Zhao, Xiaobing; Wang, Xuezhao; Su, Dangcheng; Bai, Shuo; Chen, Wei; Fang, Shaoming; Zhou, Liming; Cheng, Hui-Ming; Li, Feng
2020-07-01
Source PublicationADVANCED ENERGY MATERIALS
Volume10Issue:25
AbstractIntercalation chemistry/engineering has been widely investigated in the development of electrochemical energy storage. Graphite, as an old intercalation host, is receiving vigorous attention again via a new halogen intercalation. Whereas, exploiting new intercalation hosts and optimizing the intercalation effect still remains a great challenge. This study fabricates a Cu2Se intercalation compound showing expanded interlayer space and nanosheet array features by using a green growth approach, in which cetyltrimethyl ammonium bromide (CTAB) is inserted into Cu2Se at an ambient temperature. When acting as an electrode material for sodium-ion batteries, the Cu2Se-CTAB nanosheet arrays exhibit excellent discharge capacity and rate capability (426.0 mAh g(-1) at 0.1 A g(-1) and 238.1 mAh g(-1) at 30 A g(-1)), as well as high capacity retention of approximate to 90% at 20 A g(-1) after 6500 cycles. Benefiting from the porous array architecture, the transport of electrolytes is facilitated on the surface of Cu2Se nanosheets. In particular, the CTAB intercalated in the interlayer space of Cu2Se can increase its buffer space, stabilize the polyselenide shuttle, and prevent the fast growth of Cu nanoparticles during its electrochemical process.
DOI10.1002/aenm.202000666
WOS IDWOS:000529646100001
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82923
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Xiao, Yuanhua,Zhao, Xiaobing,Wang, Xuezhao,et al. A Nanosheet Array of Cu2Se Intercalation Compound with Expanded Interlayer Space for Sodium Ion Storage[J]. ADVANCED ENERGY MATERIALS,2020,10(25).
APA Xiao, Yuanhua.,Zhao, Xiaobing.,Wang, Xuezhao.,Su, Dangcheng.,Bai, Shuo.,...&Li, Feng.(2020).A Nanosheet Array of Cu2Se Intercalation Compound with Expanded Interlayer Space for Sodium Ion Storage.ADVANCED ENERGY MATERIALS,10(25).
MLA Xiao, Yuanhua,et al."A Nanosheet Array of Cu2Se Intercalation Compound with Expanded Interlayer Space for Sodium Ion Storage".ADVANCED ENERGY MATERIALS 10.25(2020).
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