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Carbon-Supported Nickel Selenide Hollow Nanowires as Advanced Anode Materials for Sodium-Ion Batteries.
Small 2018; 14(7)S

Abstract

Carbon-supported nickel selenide (Ni0.85 Se/C) hollow nanowires are prepared from carbon-coated selenium nanowires via a self-templating hydrothermal method, by first dissolving selenium in the Se/C nanowires in hydrazine, allowing it to diffuse out of the carbon layer, and then reacting with nickel ions into Ni0.85 Se nanoplates on the outer surface of the carbon. Ni0.85 Se/C hollow nanowires are employed as anode materials for sodium-ion batteries, and their electrochemical performance is evaluated via the cyclic voltammetry and electrochemical impedance spectroscopy combined with ex situ X-ray photoelectron spectroscopy and X-ray diffraction measurements. It is found that Ni0.85 Se/C hollow nanowires exhibit greatly enhanced cycle stability and rate capability as compared to Ni0.85 Se nanoparticles, with a reversible capacity around 390 mA h g-1 (the theoretical capacity is 416 mA h g-1) at the rate of 0.2 C and 97% capacity retention after 100 cycles. When the current rate is raised to 5 C, they still deliver capacity of 219 mA h g-1 . The synthetic methodology introduced here is general and can easily be applied to building similar structures for other metal selenides in the future.

Authors+Show Affiliations

Department of Materials Science and Engineering, Center for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.Battery and Energy Storage Technologies Laboratory, School of Energy and Environment, and Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.Department of Materials Science and Engineering, Center for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.Center of Nanomaterials for Renewable Energy (CNRE), State Key Lab of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.Battery and Energy Storage Technologies Laboratory, School of Energy and Environment, and Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.Department of Materials Science and Engineering, Center for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29280251

Citation

Yang, Xuming, et al. "Carbon-Supported Nickel Selenide Hollow Nanowires as Advanced Anode Materials for Sodium-Ion Batteries." Small (Weinheim an Der Bergstrasse, Germany), vol. 14, no. 7, 2018.
Yang X, Zhang J, Wang Z, et al. Carbon-Supported Nickel Selenide Hollow Nanowires as Advanced Anode Materials for Sodium-Ion Batteries. Small. 2018;14(7).
Yang, X., Zhang, J., Wang, Z., Wang, H., Zhi, C., Yu, D. Y. W., & Rogach, A. L. (2018). Carbon-Supported Nickel Selenide Hollow Nanowires as Advanced Anode Materials for Sodium-Ion Batteries. Small (Weinheim an Der Bergstrasse, Germany), 14(7), doi:10.1002/smll.201702669.
Yang X, et al. Carbon-Supported Nickel Selenide Hollow Nanowires as Advanced Anode Materials for Sodium-Ion Batteries. Small. 2018;14(7) PubMed PMID: 29280251.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Carbon-Supported Nickel Selenide Hollow Nanowires as Advanced Anode Materials for Sodium-Ion Batteries. AU - Yang,Xuming, AU - Zhang,Jiaolong, AU - Wang,Zhenguang, AU - Wang,Hongkang, AU - Zhi,Chunyi, AU - Yu,Denis Y W, AU - Rogach,Andrey L, Y1 - 2017/12/27/ PY - 2017/08/02/received PY - 2017/10/16/revised PY - 2017/12/28/pubmed PY - 2017/12/28/medline PY - 2017/12/28/entrez KW - nickel selenide KW - selenium nanowires KW - self-templating KW - sodium ion batteries JF - Small (Weinheim an der Bergstrasse, Germany) JO - Small VL - 14 IS - 7 N2 - Carbon-supported nickel selenide (Ni0.85 Se/C) hollow nanowires are prepared from carbon-coated selenium nanowires via a self-templating hydrothermal method, by first dissolving selenium in the Se/C nanowires in hydrazine, allowing it to diffuse out of the carbon layer, and then reacting with nickel ions into Ni0.85 Se nanoplates on the outer surface of the carbon. Ni0.85 Se/C hollow nanowires are employed as anode materials for sodium-ion batteries, and their electrochemical performance is evaluated via the cyclic voltammetry and electrochemical impedance spectroscopy combined with ex situ X-ray photoelectron spectroscopy and X-ray diffraction measurements. It is found that Ni0.85 Se/C hollow nanowires exhibit greatly enhanced cycle stability and rate capability as compared to Ni0.85 Se nanoparticles, with a reversible capacity around 390 mA h g-1 (the theoretical capacity is 416 mA h g-1) at the rate of 0.2 C and 97% capacity retention after 100 cycles. When the current rate is raised to 5 C, they still deliver capacity of 219 mA h g-1 . The synthetic methodology introduced here is general and can easily be applied to building similar structures for other metal selenides in the future. SN - 1613-6829 UR - https://www.unboundmedicine.com/medline/citation/29280251/Carbon_Supported_Nickel_Selenide_Hollow_Nanowires_as_Advanced_Anode_Materials_for_Sodium_Ion_Batteries_ L2 - https://doi.org/10.1002/smll.201702669 DB - PRIME DP - Unbound Medicine ER -