首页|A zincophilic molecular brush for a dendrite-free,corrosion-resistant,zinc metal anode with a long life cycle

A zincophilic molecular brush for a dendrite-free,corrosion-resistant,zinc metal anode with a long life cycle

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Zinc-based aqueous rechargeable batteries have attracted extensive attention due to their low cost,safety,and environmental friendliness.However,dendrite growth and hydrogen evolution of Zn anodes limit their large-scale application.A new strategy to produce a polyacrylamide/reduced graphene oxide(PAM@rGO)molecular nanobrush coating and control Zn electrolyte interface engineering is proposed for use in highly reversible Zn plating/stripping.Hydrogen evolution is inhibited,and Zn deposition is consolidated using the rich zincophilic functional groups of the branched polyacrylamide chain and the high conductivity of rGO.Due to the synergistic effects of corrosion resistance and dendrite-free growth,PAM@rGO/Zn provides prolonged and reversible Zn plating/stripping.Density functional theory(DFT)calculations expand on homogenized nucleation.The PAM@rGO/Zn||activated carbon(AC)capacitor exhibits long cyclic stability,fast ion transfer,and minimal interfacial impedance.This study provides experimental and theoretical bases for the structural design of Zn anode.

zincophilic nanobrushpolyacrylamide/reduced graphene oxide(PAM@rGO)/Znsurface modificationZn based energy storage

Penggao Liu、Jia Guo、Xinyue Chen、Ting Wang、Yanping Huang、Shasha Gao、Tao Wang、Dongling Wu、Kaiyu Liu

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State Key Laboratory of Chemistry and Utilization of Carbon based Energy Resources,College of Chemistry,Xinjiang University,Urumqi 830017,China

Hunan Provincial Key Laboratory of Chemical Power Sources,College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

Key Laboratory of New Low-carbon Green Chemical Technology,School of Chemistry and Chemical Engineering,Education Department of Guangxi Zhuang Autonomous Region,Guangxi University,Nanning530004,China

Key Laboratory of Microelectronics and Energy of Henan Province,Department of Physics and Electronic Engineering,Xinyang Normal University,Xinyang464000,China

Interdisciplinary Research Center for Sustainable Energy Science and Engineering(IRC4SE2),School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaTianchi Talent Plan of Xinjiang Uygur Autonomous Region

2220827322272204

2024

纳米研究(英文版)

纳米研究(英文版)

CSTPCD
ISSN:
年,卷(期):2024.17(1)
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