A highly stable zinc metal anode modified with a fluorinated graphite nanosheets(FGNSs)coating was designed.The porous structure of the coating layer effectively hinders lateral mass transfer of Zn ions and suppresses dendrite growth.Moreover,the high electronegativity exhibited by fluorine atoms creates an almost superhydrophobic solid-liquid interface,thereby reducing the interaction between solvent water and the zinc substrate.Consequently,this leads to a significant inhibition of hydrogen evolution corrosion and other side reactions.The modified anode demonstrates exceptional cycling stability,as symmetric cells exhibit sustained cycling for over 1400 h at a current density of 5 mA/cm2.Moreover,the full cells with NH4V4O10 cathode exhibit an impressive capacity retention rate of 92.2％after undergoing 1000 cycles.
关键词
氟化石墨/疏水涂层/抗腐蚀/枝晶抑制/锌金属负极
Key words
fluorinated graphite/hydrophobic coating/anti-corrosion/dendrite suppression/zinc metal anode
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基金项目
Young Elite Scientists Sponsorship Program by CAST,China(2023QNRC001)
Science and Technology Innovation Program of Hunan Province,China(2022RC1078)
Natural Science Foundation of Hunan Province,China(2023JJ10060)
Scientific Research Fund of Hunan Provincial Education Department,China(23A0003)
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