Facile Microwave-Assisted Synthesis and Magnetic and Gas Sensing Properties of Fe3O4 Nanoroses

被引：138

作者：

Ai, Zhihui ^{[1
,2
,3
]}

Deng, Kejian ^{[4
]}

Wan, Qianfen ^{[1
]}

Zhang, Lizhi ^{[1
]}

Lee, Shuncheng ^{[2
,3
]}

机构：

[1] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China

[2] S Cent Univ Nationalities, Minist Educ, Wuhan 430074, Hubei Province, Peoples R China

[3] State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Hubei Province, Peoples R China

[4] Hong Kong Polytech Univ, Res Ctr Environm Technol & Management, Dept Civil & Struct Engn, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 14期

基金：

美国国家科学基金会;

关键词：

IRON-OXIDE; FE3O4; NANOPARTICLES; HOLLOW SPHERES; GREEN SYNTHESIS; ROUTE; NANOCRYSTALS; NANOWIRES; FIELD; PARTICLES; GROWTH;

D O I：

10.1021/jp910514f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, we developed a facile microwave-assisted ethylene glycol approach to synthesize Fe3O4 nanoroses in the presence of the PEO-PPO-PEO block copolymer (P123) The resulting products were systematically characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and Fourier transform infrared absorption spectroscopy (FT-IR) The characterization results revealed that the Fe3O4 nanoroses were formed by P123 directed assembly of nanoparticles under microwave irradiation Besides size and morphology-dependent magnetic properties, the as-prepared nanocrystalline Fe3O4 nanoroses exhibited high sensitivity and good reversibility ion gas-sensing of ethanol vapor at room temperature. Our results suggest these Fe3O4 nanoroses are promismu materials for magnetic and sensing applications

引用

页码：6237 / 6242

页数：6

共 53 条

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