Hematite nanostructures: Morphology-mediated liquefied petroleum gas sensors

被引：27

作者：

Jadhav, Vijaykumar V. ^{[1
,2
]}

Patil, Supriya A. ^{[2
]}

Shinde, Dipak V. ^{[2
]}

Waghmare, Shivaji D. ^{[1
]}

Zate, Manohar K. ^{[1
]}

Mane, Rajaram S. ^{[1
,2
]}

Han, Sung-Hwan ^{[2
]}

机构：

[1] Swami Ramanand Teerth Marathwada Univ, Sch Phys Sci, Ctr Nano Mat & Energy Devices, Nanded 431606, MS, India

[2] Hanyang Univ, Inorgan Nanomat Lab, Dept Chem, Seoul 1331791, South Korea

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 188卷

基金：

新加坡国家研究基金会;

关键词：

alpha-Fe2O3; Structures; Morphology; LPG sensors; LITHIUM-ION BATTERY; SENSING PROPERTIES; ALPHA-FE2O3; NANOTUBES; GROWTH-MECHANISM; IRON-OXIDE; NANOPARTICLES; NANORODS; SENSITIVITY; PROPERTY; SIZE;

D O I：

10.1016/j.snb.2013.07.072

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Liquefied petroleum gas (LPG) sensors of hematite nanostructures viz. nanoparticles, nanoparticle-chains and nanorods, chemically synthesized from iron nitrate, sulfate and chloride precursors, respectively, in presence of urea as pH regulating agent are explored. These nanostructures were examined for their structures and morphologies. The Hematite morphology has an impact on crystal structure, Raman shift and charge transfer resistance value. On the basis of results presented herein, we proposed an importance of hematite nanostructures as a sensing material for the LPG sensors. Superior LPG sensor sensitivity of nanoparticles-chains (77.89%) over nanoparticles (68%) and nanorods (58.80%) at 1000 ppm LPG gas levels are imply that the hematite nanostructure (surface area) plays an important role in mediating charge transfer reaction. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：669 / 674

页数：6

共 41 条

[1] Syntheses of Fe2O3/silica red inorganic inclusion pigments for ceramic applications [J].

Bondioli, F ;

Ferrari, AM ;

Leonelli, C ;

Manfredini, T .

MATERIALS RESEARCH BULLETIN, 1998, 33 (05) :723-729

[2] Surfactant-free preparation and drug release property of magnetic hollow core/shell hierarchical nanostructures [J].

Cao, Shao-Wen ;

Zhu, Ying-Jie .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (32) :12149-12156

[3] Hierarchically nanostructured (α-Fe2O3 hollow spheres:: Preparation, growth mechanism, photocatalytic property, and application in water treatment [J].

Cao, Shao-Wen ;

Zhu, Ying-Jie .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (16) :6253-6257

[4] XPS characterization of xα-Fe2O3-(1-x)ZrO2 for oxygen gas sensing application [J].

Cao, W ;

Tan, OK ;

Pan, JS ;

Zhu, W ;

Reddy, CVG .

MATERIALS CHEMISTRY AND PHYSICS, 2002, 75 (1-3) :67-70

[5] The concept of delayed nucleation in nanocrystal growth demonstrated for the case of iron oxide nanodisks [J].

Casula, MF ;

Jun, YW ;

Zaziski, DJ ;

Chan, EM ;

Corrias, A ;

Alivisatos, AP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (05) :1675-1682

[6] Infrared- and Raman-active phonons of magnetite, maghemite, and hematite: A computer simulation and spectroscopic study [J].

Chamritski, I ;

Burns, G .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (11) :4965-4968

[7] α-Fe2O3 nanotubes in gas sensor and lithium-ion battery applications [J].

Chen, J ;

Xu, LN ;

Li, WY ;

Gou, XL .

ADVANCED MATERIALS, 2005, 17 (05) :582-+

[8] Reducing gas-sensing properties of ferrite compounds MFe2O4 (M = Cu, Zn, Cd and Mg) [J].

Chen, NS ;

Yang, XJ ;

Liu, ES ;

Huang, JL .

SENSORS AND ACTUATORS B-CHEMICAL, 2000, 66 (1-3) :178-180

[9] Size-dependent structural transformations of hematite nanoparticles. 1. Phase transition [J].

Chernyshova, I. V. ;

Hochella, M. F., Jr. ;

Madden, A. S. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (14) :1736-1750

[10] CdO nanosheet film with a (200)-preferred orientation with sensitivity to liquefied petroleum gas (LPG) at low-temperatures [J].

Cui, Guangliang ;

Li, Zimeng ;

Gao, Liang ;

Zhang, Mingzhe .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (47) :16321-16325

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