Study on humidity sensing properties based on composite materials of Li-doped mesoporous silica A-SBA-15

被引：86

作者：

Zhang, Tong ^{[1
,2
]}

Wang, Rui ^{[1
,2
]}

Geng, Wangchang ^{[3
]}

Li, Xiaotian ^{[3
]}

Qi, Qi ^{[1
]}

He, Yuan ^{[2
]}

Wang, Shujuan ^{[2
]}

机构：

[1] Jilin Univ Reg, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Peoples R China

[3] Jilin Univ, Coll Mat Sci & Engn, Changchun 130012, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2008年 / 128卷 / 02期

关键词：

humidity sensor; A-SBA-15; proton transport; complex impedance plot;

D O I：

10.1016/j.snb.2007.07.012

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

P-SBA-15 and A-SBA-15 and LiCl-A-SBA-15 (X) were prepared and characterized by IR and XRD. These different characteristic results suggest that these materials have the similar mesoporous structure. The dopant of LiCl improves the pure A-SBA-15 sorption ability to moisture. A resistive-type humidity sensor is fabricated on a ceramic substrate with Ag-Pd interdigital electrodes. The testing results on humidity sensing properties show that the material with 15 wt.% LiCl as a dopant has the best sensing properties to humidity. The discussion on the sensing principle suggests that the protons are the domination carrier in a low humidity range and ions in a high humidity range. The complex impedance plots support this discussion result. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：482 / 487

页数：6

共 23 条

[1] ELECTRICAL CONDUCTIVITY OF SILICA GEL IN PRESENCE OF ADSORBED WATER [J].

ANDERSON, JH ;

PARKS, GA .

JOURNAL OF PHYSICAL CHEMISTRY, 1968, 72 (10) :3662-&

[2] A study on the humidity sensing properties of ZnCr2O4-K2CrO4 ionic conductive ceramic sensor [J].

Bayhan, M. ;

Kavasoglu, N. .

SENSORS AND ACTUATORS B-CHEMICAL, 2006, 117 (01) :261-265

[3] Investigations on the ion transport mechanism in conducting polymer films [J].

Casalbore-Miceli, G ;

Yang, MJ ;

Camaioni, N ;

Mari, CM ;

Li, Y ;

Sun, H ;

Ling, M .

SOLID STATE IONICS, 2000, 131 (3-4) :311-321

[4] A polyelectrolyte as humidity sensing material: Influence of the preparation parameters on its sensing property [J].

Casalbore-Miceli, G ;

Yang, MJ ;

Li, Y ;

Zanelli, A ;

Martelli, A ;

Chen, S ;

She, Y ;

Camaioni, N .

SENSORS AND ACTUATORS B-CHEMICAL, 2006, 114 (02) :584-590

[5] Humidity-dependent impedance in porous spinel nickel germanate ceramic [J].

Hogan, MJ ;

Brinkman, AW ;

Hashemi, T .

APPLIED PHYSICS LETTERS, 1998, 72 (23) :3077-3079

[6] Effect of Li+ doping on ZrO2-TiO2 humidity sensor [J].

Jain, MK ;

Bhatnagar, MC ;

Sharma, GL .

SENSORS AND ACTUATORS B-CHEMICAL, 1999, 55 (2-3) :180-185

[7] Characterization and photocatalytic properties of titanium-containing mesoporous SBA-15 [J].

Li, G ;

Zhao, XS .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (10) :3569-3573

[8] Host-guest composite materials of LiCl/NaY with wide range of humidity sensitivity [J].

Li, N ;

Li, XT ;

Zhang, T ;

Qiu, SL ;

Zhu, GS ;

Zheng, WT ;

Yu, WX .

MATERIALS LETTERS, 2004, 58 (10) :1535-1539

[9] Humidity sensitive properties of crosslinked and quaternized poly(4-vinylpyridine-co-butyl methacrylate) [J].

Li, Y ;

Yang, MJ ;

She, Y .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 107 (01) :252-257

[10] A novel highly reversible humidity sensor based on poly(2-propyn-2-furoate) [J].

Li, Y ;

Yang, MJ .

SENSORS AND ACTUATORS B-CHEMICAL, 2002, 86 (2-3) :155-159

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