Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/156849
Title: Nitrogen-doped carbon fibers embedded with zincophilic Cu nanoboxes for stable Zn-metal anodes
Authors: Zeng, Yinxiang
Sun, Peng Xiao
Pei, Zhihao
Jin, Qi
Zhang, Xitian
Yu, Le
Lou, David Xiong Wen
Keywords: Engineering::Chemical engineering
Engineering::Materials
Issue Date: 2022
Source: Zeng, Y., Sun, P. X., Pei, Z., Jin, Q., Zhang, X., Yu, L. & Lou, D. X. W. (2022). Nitrogen-doped carbon fibers embedded with zincophilic Cu nanoboxes for stable Zn-metal anodes. Advanced Materials. https://dx.doi.org/10.1002/adma.202200342
Project: RG3/20 
MOE2019-T2-2-049 
Journal: Advanced Materials 
Abstract: The practical application of Zn-metal anodes (ZMAs) is mainly impeded by the limited lifespan and low Coulombic efficiency (CE) resulting from the Zn dendrite growth and side reactions. Herein, a 3D multifunctional host consisting of N-doped carbon fibers embedded with Cu nanoboxes (denoted as Cu NBs@NCFs) is rationally designed and developed for stable ZMAs. The 3D macroporous configuration and hollow structure can lower the local current density and alleviate the large volume change during the repeated cycling processes. Furthermore, zincophilic Cu and in-situ-formed Cu-Zn alloy can act as homogeneous nucleation sites to minimize the Zn nucleation overpotential, further guiding uniform and dense Zn deposition. As a result, this Cu NBs@NCFs host exhibits high CE of Zn plating/stripping for 1000 cycles. The Cu NBs@NCFs-Zn electrode shows low voltage hysteresis and prolonged cycling life (450 h) with dendrite-free behaviors. As a proof-of-concept demonstration, a Zn-ion full cell is fabricated based on this Cu NBs@NCFs-Zn anode, which demonstrates decent rate capability and improved cycling performance.
URI: https://hdl.handle.net/10356/156849
ISSN: 0935-9648
DOI: 10.1002/adma.202200342
Schools: School of Chemical and Biomedical Engineering 
Rights: This is the peer reviewed version of the following article: Zeng, Y., Sun, P. X., Pei, Z., Jin, Q., Zhang, X., Yu, L. & Lou, D. X. W. (2022). Nitrogen-doped carbon fibers embedded with zincophilic Cu nanoboxes for stable Zn-metal anodes. Advanced Materials, which has been published in final form at https://doi.org/10.1002/adma.202200342. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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