首页|Zincophilic Ti3C2Cl2 MXene and anti-corrosive Cu NPs for synergistically regulated deposition of dendrite-free Zn metal anode

Zincophilic Ti3C2Cl2 MXene and anti-corrosive Cu NPs for synergistically regulated deposition of dendrite-free Zn metal anode

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Dendrites growth,chemical corrosion,and hydrogen evolution reaction(HER)on zinc anodes are the main barriers for the development of aqueous zinc-ion batteries(AZIBs).Constructing interfacial protec-tive layer is an effective way to alleviate the side reactions on the anodes.Herein,Cu/Ti3C2Cl2 MXene(CMX)with high zincophilic and hydrophobic property is prepared by the lewis molten salts etching method,and the CMX interface protection layer is constructed by a simple spin coating.The CMX coat-ing layer can provide abundant nucleation sites and uniformize the charge distribution through the zin-cophilic Ti3C2Cl2 MXene matrix,leading to homogenous Zn deposition.In addition,the hydrophobic coat-ing contained anti-corrosive Cu nanoparticles can prevent the Zn anode from the electrolyte,beneficial for suppressing the chemical corrosion and HER.Therefore,the stable and reversible Zn plating/stripping is achieved for the Zn anode coated by the CMX,which exhibits the lifespan of over 1400 h at 0.5 mA cm-2,and even can steadily run for 700 h with 65 mV at 10 mA cm-2.Furthermore,CMX@Zn shows a high coulombic efficiency of over 100％for 3800 cycles,which indicates that the CMX@Zn electrode has excellent stability and reversibility of Zn stripping/plating.The full batteries assembled with ZnCoMnO/C(ZCM)cathodes also exhibits higher capacity(450.6 mAh g-1 at 0.1 A g-1)and cycle stability(capacity retention of 70％after 1500 cycles).This work enhanced the lifespan of AZIBs and broaden the research of multifunctional coating layer to other secondary batteries based on metal anodes.

Zinc anodeSpin coatingZincophilic MXeneAnti-corrosive Cu NPsMultifunctional coating

Yunfei Shen、Yi Liu、Kaisheng Sun、Tiantian Gu、Gang Wang、Yue Yang、Jianxiang Pang、Yang Zheng、Xiaodong Yang、Long Chen

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Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan,School of Chemistry and Chemical Engineering,Shihezi University,Shihezi 832003,China

Institute for Chemistry,Chemnitz University of Technology,Chemnitz 09107,Germany

CAS Key Laboratory of Functional Materials and Devices for Special Environments,Xinjiang Key Laboratory of Electronic Information Materials and Devices,Center of Materials Science and Optoelectronics Engineering,Xinjiang Technical Institute of Physics and Chemistry of CAS,Urumqi 830011,China

Key Laboratory of Ecophysics and Department of Physics,College of Science,Shihezi University,Shihezi 832003,China

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国家自然科学基金program for Strong Youth Technology Leading Talents in Bingtuan Technological Innovation TalentsYouth Innovative Top Talents Fund,Shihezi UniversityYouth Science and Technology Innovation Leading Talent Fund,Bashi Shihezi

519620322023CB008-11CXBJ2022032023RC02

2024

10.1016/j.jmst.2023.06.017

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.169(2)
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