Gas sensing properties of columnar CeO2 nanostructures prepared by Chemical vapor deposition

被引：27

作者：

Barreca, Davide ^{[1
,2
]}

Comini, Elisabetta ^{[3
]}

Gasparotto, Alberto ^{[1
]}

Maccato, Chiara ^{[1
]}

Maragno, Cinzia ^{[1
]}

Sberveglieri, Giorgio ^{[3
]}

Tondello, Eugenio ^{[1
]}

机构：

[1] Univ Padua, Dept Chem, INSTM, I-35131 Padua, Italy

[2] CNR, ISTM, I-35131 Padua, Italy

[3] Univ Brescia, SENSOR, INFM, CNR, I-25133 Brescia, Italy

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2008年 / 8卷 / 02期

关键词：

columnar CeO2 nanostructures; chemical vapor deposition; gas sensors;

D O I：

10.1166/jnn.2008.080

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Columnar CeO2 nanostructures are grown on alumina substrates by a template- and catalyst-free Chemical Vapor Deposition (CVD) approach and subsequently tested as resistive gas sensors of CH3COCH3, H-2, NO2. The sensor response is stable and reproducible throughout the whole working temperature range (200-500 degrees C) and directly dependent on the analyte gas and the adopted operating conditions. The higher sensitivity with respect to that displayed by continuous CeO2 thin films demonstrates the potential of fabricating nanostructured sensing devices characterized by improved functional performances.

引用

页码：1012 / 1016

页数：5

共 22 条

[1]

BARRECA D, 2007, NANOTECHNOLOGY, V18

[2] Toward the innovative synthesis of columnar CeO2 nanostructures [J].

Barreca, Davide ;

Gasparotto, Alberto ;

Maccato, Chiara ;

Maragno, Cinzia ;

Tondello, Eugenio .

LANGMUIR, 2006, 22 (21) :8639-8641

[3] High-temperature semiconductor gas sensors [J].

Bene, R ;

Pintér, Z ;

Perczel, IV ;

Fleischer, M ;

Réti, F .

VACUUM, 2001, 61 (2-4) :275-278

[4] Chemical reactions in the detection of acetone and NO by a CeO2 thin film [J].

Bene, R ;

Perczel, IV ;

Réti, F ;

Meyer, FA ;

Fleisher, M ;

Meixner, H .

SENSORS AND ACTUATORS B-CHEMICAL, 2000, 71 (1-2) :36-41

[5] Structural and optical study of SnO2 nanobelts and nanowires [J].

Calestani, D ;

Zha, M ;

Zappettini, A ;

Lazzarini, L ;

Salviati, G ;

Zanotti, L ;

Sberveglieri, G .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2005, 25 (5-8) :625-630

[6] SnO2 lithographic processing for nanopatterned gas sensors [J].

Candeloro, P ;

Comini, E ;

Baratto, C ;

Faglia, G ;

Sberveglieri, G ;

Kumar, R ;

Carpentiero, A ;

Di Fabrizio, E .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2005, 23 (06) :2784-2788

[7] Tin oxide nanobelts electrical and sensing properties [J].

Comini, E ;

Faglia, G ;

Sberveglieri, G ;

Calestani, D ;

Zanotti, L ;

Zha, M .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 111 :2-6

[8] Gas sensing properties of MoO3 nanorods to CO and CH3OH [J].

Comini, E ;

Yubao, L ;

Brando, Y ;

Sberveglieri, G .

CHEMICAL PHYSICS LETTERS, 2005, 407 (4-6) :368-371

[9] Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts [J].

Comini, E ;

Faglia, G ;

Sberveglieri, G ;

Pan, ZW ;

Wang, ZL .

APPLIED PHYSICS LETTERS, 2002, 81 (10) :1869-1871

[10] Metal oxide nano-crystals for gas sensing [J].

Comini, Elisabetta .

ANALYTICA CHIMICA ACTA, 2006, 568 (1-2) :28-40

← 1 2 3 →