Synthesis, structure and properties of Fe 3O 4 nanofluids with liquid-like behavior

Yumo Tan; Aibo Zhang; Yaping Zheng; Lan Lan; Wei Chen

Synthesis, structure and properties of Fe ₃O ₄ nanofluids with liquid-like behavior

Yumo Tan, Aibo Zhang, Yaping Zheng, Lan Lan, Wei Chen

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Fe ₃O ₄ nanoparticles were modified with ionic surfactant (CH ₃O) ₃ Si(CH ₂) ₃N ⁺(CH ₃) (C ₁₀H ₂₀) ₂Cl ^-, and then the chloridion was replaced by the anion C ₉H ₁₉C ₆H ₄ (OCH ₂CH ₂) ₂₀ O(CH ₂) ₃SO ₃ ^- through an ion-exchange process. As a result, an electrical double-layer structure was formed on the surface of Fe ₃O ₄ nanoparticles. The results showed that the surface layer has been successfully grafted on Fe ₃O ₄ nanoparticles surface and the modified Fe ₃O ₄ nanoparticles were well dispersed. The loss shear modulus G″ of Fe ₃O ₄ nanofluids was significantly greater than the storage shear modulus G′ at room temperature, which confirms the typical fluid-behavior. Great stability and good flowability are well maintained after standing for a year at room temperature.

Original language	English
Pages (from-to)	561-565
Number of pages	5
Journal	Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
Volume	25
Issue number	6
State	Published - Dec 2011

Keywords

Inorganic non-metallic materials
Magnetic nanoparticles
Solid-liquid transformation
Solvent-free nanofluids
Surface modification

Cite this

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title = "Synthesis, structure and properties of Fe 3O 4 nanofluids with liquid-like behavior",

abstract = "Fe 3O 4 nanoparticles were modified with ionic surfactant (CH 3O) 3 Si(CH 2) 3N +(CH 3) (C 10H 20) 2Cl -, and then the chloridion was replaced by the anion C 9H 19C 6H 4 (OCH 2CH 2) 20 O(CH 2) 3SO 3 - through an ion-exchange process. As a result, an electrical double-layer structure was formed on the surface of Fe 3O 4 nanoparticles. The results showed that the surface layer has been successfully grafted on Fe 3O 4 nanoparticles surface and the modified Fe 3O 4 nanoparticles were well dispersed. The loss shear modulus G″ of Fe 3O 4 nanofluids was significantly greater than the storage shear modulus G′ at room temperature, which confirms the typical fluid-behavior. Great stability and good flowability are well maintained after standing for a year at room temperature.",

keywords = "Inorganic non-metallic materials, Magnetic nanoparticles, Solid-liquid transformation, Solvent-free nanofluids, Surface modification",

author = "Yumo Tan and Aibo Zhang and Yaping Zheng and Lan Lan and Wei Chen",

year = "2011",

month = dec,

language = "英语",

volume = "25",

pages = "561--565",

journal = "Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research",

issn = "1005-3093",

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TY - JOUR

T1 - Synthesis, structure and properties of Fe 3O 4 nanofluids with liquid-like behavior

AU - Tan, Yumo

AU - Zhang, Aibo

AU - Zheng, Yaping

AU - Lan, Lan

AU - Chen, Wei

PY - 2011/12

Y1 - 2011/12

N2 - Fe 3O 4 nanoparticles were modified with ionic surfactant (CH 3O) 3 Si(CH 2) 3N +(CH 3) (C 10H 20) 2Cl -, and then the chloridion was replaced by the anion C 9H 19C 6H 4 (OCH 2CH 2) 20 O(CH 2) 3SO 3 - through an ion-exchange process. As a result, an electrical double-layer structure was formed on the surface of Fe 3O 4 nanoparticles. The results showed that the surface layer has been successfully grafted on Fe 3O 4 nanoparticles surface and the modified Fe 3O 4 nanoparticles were well dispersed. The loss shear modulus G″ of Fe 3O 4 nanofluids was significantly greater than the storage shear modulus G′ at room temperature, which confirms the typical fluid-behavior. Great stability and good flowability are well maintained after standing for a year at room temperature.

AB - Fe 3O 4 nanoparticles were modified with ionic surfactant (CH 3O) 3 Si(CH 2) 3N +(CH 3) (C 10H 20) 2Cl -, and then the chloridion was replaced by the anion C 9H 19C 6H 4 (OCH 2CH 2) 20 O(CH 2) 3SO 3 - through an ion-exchange process. As a result, an electrical double-layer structure was formed on the surface of Fe 3O 4 nanoparticles. The results showed that the surface layer has been successfully grafted on Fe 3O 4 nanoparticles surface and the modified Fe 3O 4 nanoparticles were well dispersed. The loss shear modulus G″ of Fe 3O 4 nanofluids was significantly greater than the storage shear modulus G′ at room temperature, which confirms the typical fluid-behavior. Great stability and good flowability are well maintained after standing for a year at room temperature.

KW - Inorganic non-metallic materials

KW - Magnetic nanoparticles

KW - Solid-liquid transformation

KW - Solvent-free nanofluids

KW - Surface modification

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M3 - 文章

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JO - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

JF - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

IS - 6

ER -

Synthesis, structure and properties of Fe ₃O ₄ nanofluids with liquid-like behavior

Abstract

Keywords

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