Preparation and magnetic properties of MWCNTs grafted hollow-HI

Tingkai Zhao; Hongyan Zhang; Ruoxing Zhu; Jungao Wang; Shengfei She; Zhengguang Guo; Xing Zhao; Tiehu Li

Preparation and magnetic properties of MWCNTs grafted hollow-HI

Tingkai Zhao
, Hongyan Zhang
, Ruoxing Zhu
, Jungao Wang
, Shengfei She
, Zhengguang Guo
, Xing Zhao
, Tiehu Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

1 Scopus citations

Abstract

The hydroxy-iron powder with a hollow structure (h-hydroxy-iron, h-HI) was prepared using a pitting method, and then hollow-HI coated with MWCNTs (MWCNTs@h-HI) were prepared by connecting h-HI and MWCNTs with PABA as the active grafting agent. XRD, SEM, TEM and Lakeshore7307VSM were used to characterize the as-prepared products; hydroxy-iron powder, hollow HI and MWCNTs@HI were also characterized as comparisons. The results show that the hydroxy-iron powder can be prepared and grafted with MWCNTs. The best pitting time is 15 min, when the yield of h-HI is the largest, the wall thickness of h-HI particles with 2 μm in diameter is 200 nm, and the thickness of the grafting layer 150 nm. The saturation magnetization (M_s) of MWCNTs@h-HI is 140.88 (A·m²)·kg^-1, the remanence (M_r) 1.4808 (A·m²)·kg^-1 and the coercivity (H_c) 4.742×10^-3 T.

Original language	English
Pages (from-to)	2165-2168
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	45
Issue number	8
State	Published - 1 Aug 2016

Keywords

Carbon nanotubes
Hydroxy-iron (HI)
Magnetic performance
Pitting method

Cite this

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title = "Preparation and magnetic properties of MWCNTs grafted hollow-HI",

abstract = "The hydroxy-iron powder with a hollow structure (h-hydroxy-iron, h-HI) was prepared using a pitting method, and then hollow-HI coated with MWCNTs (MWCNTs@h-HI) were prepared by connecting h-HI and MWCNTs with PABA as the active grafting agent. XRD, SEM, TEM and Lakeshore7307VSM were used to characterize the as-prepared products; hydroxy-iron powder, hollow HI and MWCNTs@HI were also characterized as comparisons. The results show that the hydroxy-iron powder can be prepared and grafted with MWCNTs. The best pitting time is 15 min, when the yield of h-HI is the largest, the wall thickness of h-HI particles with 2 μm in diameter is 200 nm, and the thickness of the grafting layer 150 nm. The saturation magnetization (Ms) of MWCNTs@h-HI is 140.88 (A·m2)·kg-1, the remanence (Mr) 1.4808 (A·m2)·kg-1 and the coercivity (Hc) 4.742×10-3 T.",

keywords = "Carbon nanotubes, Hydroxy-iron (HI), Magnetic performance, Pitting method",

author = "Tingkai Zhao and Hongyan Zhang and Ruoxing Zhu and Jungao Wang and Shengfei She and Zhengguang Guo and Xing Zhao and Tiehu Li",

year = "2016",

month = aug,

day = "1",

language = "英语",

volume = "45",

pages = "2165--2168",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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number = "8",

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TY - JOUR

T1 - Preparation and magnetic properties of MWCNTs grafted hollow-HI

AU - Zhao, Tingkai

AU - Zhang, Hongyan

AU - Zhu, Ruoxing

AU - Wang, Jungao

AU - She, Shengfei

AU - Guo, Zhengguang

AU - Zhao, Xing

AU - Li, Tiehu

PY - 2016/8/1

Y1 - 2016/8/1

N2 - The hydroxy-iron powder with a hollow structure (h-hydroxy-iron, h-HI) was prepared using a pitting method, and then hollow-HI coated with MWCNTs (MWCNTs@h-HI) were prepared by connecting h-HI and MWCNTs with PABA as the active grafting agent. XRD, SEM, TEM and Lakeshore7307VSM were used to characterize the as-prepared products; hydroxy-iron powder, hollow HI and MWCNTs@HI were also characterized as comparisons. The results show that the hydroxy-iron powder can be prepared and grafted with MWCNTs. The best pitting time is 15 min, when the yield of h-HI is the largest, the wall thickness of h-HI particles with 2 μm in diameter is 200 nm, and the thickness of the grafting layer 150 nm. The saturation magnetization (Ms) of MWCNTs@h-HI is 140.88 (A·m2)·kg-1, the remanence (Mr) 1.4808 (A·m2)·kg-1 and the coercivity (Hc) 4.742×10-3 T.

AB - The hydroxy-iron powder with a hollow structure (h-hydroxy-iron, h-HI) was prepared using a pitting method, and then hollow-HI coated with MWCNTs (MWCNTs@h-HI) were prepared by connecting h-HI and MWCNTs with PABA as the active grafting agent. XRD, SEM, TEM and Lakeshore7307VSM were used to characterize the as-prepared products; hydroxy-iron powder, hollow HI and MWCNTs@HI were also characterized as comparisons. The results show that the hydroxy-iron powder can be prepared and grafted with MWCNTs. The best pitting time is 15 min, when the yield of h-HI is the largest, the wall thickness of h-HI particles with 2 μm in diameter is 200 nm, and the thickness of the grafting layer 150 nm. The saturation magnetization (Ms) of MWCNTs@h-HI is 140.88 (A·m2)·kg-1, the remanence (Mr) 1.4808 (A·m2)·kg-1 and the coercivity (Hc) 4.742×10-3 T.

KW - Carbon nanotubes

KW - Hydroxy-iron (HI)

KW - Magnetic performance

KW - Pitting method

UR - https://www.scopus.com/pages/publications/84985949326

M3 - 文章

AN - SCOPUS:84985949326

SN - 1002-185X

VL - 45

SP - 2165

EP - 2168

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 8

ER -

Preparation and magnetic properties of MWCNTs grafted hollow-HI

Abstract

Keywords

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