Selective detection of hazardous VOCs using zeolite/Metglas composite sensors

被引：38

作者：

Baimpos, Theodoros ^{[2
,3
]}

Gora, Leszek ^{[4
]}

Nikolakis, Vladimiros ^{[2
,5
]}

Kouzoudis, Dimitris ^{[1
]}

机构：

[1] Univ Patras, Dept Engn Sci, GR-26504 Patras, Greece

[2] Fdn Res & Technol Hellas, Inst Chem Engn & High Temp Chem Proc, GR-26504 Patras, Greece

[3] Univ Patras, Dept Chem Engn, GR-26504 Patras, Greece

[4] Delft Univ Technol, DelftChemTech, Catalysis Engn Pore, NL-2628 BL Delft, Netherlands

[5] Univ Delaware, Catalysis Ctr Energy Innovat CCEI, Newark, DE 19816 USA

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2012年 / 186卷

关键词：

Magnetoelastic sensors; Zeolites; Volatile Organic Compounds; VOLATILE ORGANIC-COMPOUNDS; MAGNETOELASTIC-SENSING DEVICE; INVERSE GAS-CHROMATOGRAPHY; MONTE-CARLO SIMULATIONS; P-XYLENE SYSTEM; ZEOLITE FILMS; AROMATIC-HYDROCARBONS; ADSORPTION EQUILIBRIA; SILICALITE CRYSTALS; ELASTIC PROPERTIES;

D O I：

10.1016/j.sna.2011.12.030

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

Four different zeolite films of type FAU, LTA, MFI and b-oriented MFI were synthesized on top of magnetoelastic sensors in order to act as sensitive recognition layers for the detection of six different Volatile Organic Compounds, namely benzene, c-hexane, n-hexane, o- & p-xylene and ethyl-acetate. The FAU sensor shows the lowest minimum detection limits down to 6 ppm for o-xylene but lacks selectivity. The LTA sensor shows great selectivity towards the xylene isomers. Finally the randomly oriented MFI shows the greatest sensitivity of 180 ppm to n-hexane compared to all other sensors, and presents the opposite behavior to o-xylene and p-xylene compared to the b-oriented MFI sensor. The adsorption induced stresses affect the sensor response with the highest impact observed in the case of random oriented MFI under n-hexane exposure. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：21 / 31

页数：11

共 75 条

[1]

[Anonymous], 1999, PERRYS CHEM HDB

[2]

Behavior of benzene in Na-X and Na-Y zeolites: Comparative study by H-2 NMR and molecular mechanics [J].

Auerbach, SM ;

Bull, LM ;

Henson, NJ ;

Metiu, HI ;

Cheetham, AK .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (14) :5923-5930

[3]

Baerlocher C., 2011, Database of Zeolite Structures

[4]

Effect of gas adsorption on the elastic properties of faujasite films measured using magnetoelastic sensors [J].

Baimpos, Theodoros ;

Giannakopoulos, Ioannis G. ;

Nikolakis, Vladimiros ;

Kouzoudis, Dimitris .

CHEMISTRY OF MATERIALS, 2008, 20 (04) :1470-1475

[5]

A new method for measuring the adsorption induced stresses of zeolite films using magnetoelastic sensors [J].

Baimpos, Theodoros ;

Nikolakis, Vladimiros ;

Kouzoudis, Dimitris .

JOURNAL OF MEMBRANE SCIENCE, 2012, 390 :130-140

[6]

Are Zeolite Films Flexible? [J].

Baimpos, Theodoros ;

Kouzoudis, Dimitris ;

Gora, Leszek ;

Nikolakis, Vladimiros .

CHEMISTRY OF MATERIALS, 2011, 23 (06) :1347-1349

[7]

Use of a Zeolite LTA Film for the Selective Detection of Light Hydrocarbons [J].

Baimpos, Theodoros ;

Kouzoudis, Dimitris ;

Nikolakis, Vladimiros .

SCIENCE OF ADVANCED MATERIALS, 2010, 2 (02) :215-218

[8]

Baimpos T, 2008, STUD SURF SCI CATAL, V174, P665

[9]

A polymer-Metglas sensor used to detect volatile organic compounds [J].

Baimpos, Theodoros ;

Boutikos, Panagiotis ;

Nikolakis, Vladimiros ;

Kouzoudis, Dimitris .

SENSORS AND ACTUATORS A-PHYSICAL, 2010, 158 (02) :249-253

[10]

Magnetoelastic sensors based on soft amorphous magnetic alloys [J].

Barandiaran, JM ;

Gutierrez, J .

SENSORS AND ACTUATORS A-PHYSICAL, 1997, 59 (1-3) :38-42

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