Water-processable liquid metal nanoparticles by single-step polymer encapsulation

Liu，Yong1; Wang，Qian2; Bi，Shunchao1; Zhang，Wei3; Zhou，Henghui2; Jiang，Xingyu4

2020-07-02

10.1039/d0nr00988a

Nanoscale   影响因子和分区

2040-3364

2040-3372

Stabilizing metastable colloids such as gallium-based liquid metal nanoparticles (LM NPs) and using them in complex machining processes is a great challenge due to their simple and sensitive surface chemistry against ligand modification and solution processing. Water, a green solvent, is unfortunately not favored by LM NPs in the entire workflow from synthesis to functionalization and application. This dilemma is relieved herein by presenting a sonochemical polymer deposition technique that can produce a water-dispersible LM@polymer hybrid nanomaterial in one step. Water-soluble polymers such as poly(vinyl pyrrolidone) (PVP) can be directly deposited onto eutectic gallium indium (EGaIn) as a coating shell (up to 20 nm) and prevent their rapid and continuous oxidation in aqueous solutions. EGaIn@PVP NPs are stable after preservation for 30 days in water and 60 days in ethanol, and the polymer coating shows solvent-responsive swelling/shrinking behaviors. The LM@polymer NPs can be stably composited with other materials through complex processing and perform desired functions after composition. For demonstration, EGaIn@PVP NPs are employed as active electrode materials for lithium-ion batteries by compositing with water-soluble binders, and exhibit excellent cycling performances with no obvious decay (capacity retention >95%) in more than 700 cycles at 4 A g-1. This strategy enriches the toolbox for surface engineering of LMs especially under harsh conditions, which can benefit the applications of LM NPs in various scenarios.

SCI ; EI

英语

第一

National Key R&D Program of China[2017YFA0205901] ; National Natural Science Foundation of China[21535001][81730051][21761142006][21875004] ; Chinese Academy of Sciences[QYZDJ-SSW-SLH039][121D11KYSB20170026][XDA16020902] ; Natural Science Foundation of Beijing[2192018]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000545253700046

ROYAL SOC CHEMISTRY

20204309398269

Lithium-ion batteries ; Gallium ; Liquid metals ; Plastic coatings ; Machining ; Organic solvents ; Surface chemistry ; Swelling

Metallurgy:531.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Machining Operations:604.2 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Chemical Agents and Basic Industrial Chemicals:803 ; Organic Compounds:804.1 ; Coating Materials:813.2 ; Polymer Applications:817.2 ; Materials Science:951

2-s2.0-85087531751

Scopus

1.CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China. jiang@sustech.edu.cn and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, P. R. China
2.College of Chemistry and Molecular Engineering,Peking University,No. 202 Chengfu Road,100871,China
3.CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,No. 11 Zhongguancun Beiyitiao,100190,China
4.CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China. and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, P. R. China and Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Shenzhen, Guangdong 518055, P. R. China

Liu，Yong,Wang，Qian,Bi，Shunchao,et al. Water-processable liquid metal nanoparticles by single-step polymer encapsulation[J]. Nanoscale,2020,12(25):13731-13741.

Liu，Yong,Wang，Qian,Bi，Shunchao,Zhang，Wei,Zhou，Henghui,&Jiang，Xingyu.(2020).Water-processable liquid metal nanoparticles by single-step polymer encapsulation.Nanoscale,12(25),13731-13741.

Liu，Yong,et al."Water-processable liquid metal nanoparticles by single-step polymer encapsulation".Nanoscale 12.25(2020):13731-13741.