Responses of three-dimensional porous ZnO foam structures to the trace level of triethylamine and ethanol

被引:45
作者
Wang, Jinlei [1 ]
Pei, Cuijin [1 ]
Cheng, Lijuan [1 ]
Wan, Wenping [1 ]
Zhao, Qing [1 ]
Yang, Heqing [1 ]
Liu, Shengzhong [2 ]
机构
[1] Shaanxi Normal Univ, Sch Mat Sci & Engn, Key Lab Macromol Sci Shaanxi Prov, Xian 710119, Peoples R China
[2] Shaanxi Normal Univ, Sch Mat Sci & Engn, Key Lab Appl Surface & Colloid Chem, Minist Educ, Xian 710119, Peoples R China
来源
SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 223卷
基金
中国国家自然科学基金;
关键词
ZnO foam structures; Gas sensor; Rapid combustion; GAS-SENSING PROPERTIES; SHAPED INTERDIGITATING ELECTRODES; ROOM-TEMPERATURE; NANOWIRE; GROWTH; NANOSTRUCTURES; PERFORMANCE; NETWORKS; NANORODS; SENSOR;
D O I
10.1016/j.snb.2015.09.138
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The three-dimensional (3D) porous ZnO foam structures were successfully synthesized by a rapid combustion of ethylene glycol solution of zinc nitrate at 350 and 450 degrees C. The typical pore diameters of the ZnO foam structures are in the range of 2-5000 nm. The 3D ZnO frameworks are assembled from ZnO nanoparticles with hexagonal structure. The specific surface area and crystallite size of the ZnO foam structures can be adjusted by changing the reaction temperature. The gas-sensing performance of the as-prepared ZnO foam structures was investigated toward ultra low concentrations of triethylamine and ethanol (<5 ppm). It was found that ZnO foam structures obtained at 350 degrees C shows superior gas-sensing performances, compared with samples obtained at 450 degrees C, ZnO nanorods and hollow microspheres constructed with ZnO nanorods. The response to 90 ppb of N(C2H5)(3) and 210 ppb of C2H5OH 1.40 and 1.24, respectively. The excellent sensing performances are attributed to the 3D porous foam structures with high specific surface area and unique pore structures. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:650 / 657
页数:8
相关论文
共 49 条
[1]   Synthesis and optical characterization of porous ZnO [J].
Babu, K. Sowri ;
Reddy, A. Ramachandra ;
Sujatha, Ch. ;
Reddy, K. Venugopal ;
Mallika, A. N. .
JOURNAL OF ADVANCED CERAMICS, 2013, 2 (03) :260-265
[2]   Porous ZnO Polygonal Nanoflakes: Synthesis, Use in High-Sensitivity NO2 Gas Sensor, and Proposed Mechanism of Gas Sensing [J].
Chen, Mei ;
Wang, Zhihua ;
Han, Dongmei ;
Gu, Fubo ;
Guo, Guangsheng .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (26) :12763-12773
[3]   Ethanol sensing characteristics of ambient temperature sonochemically synthesized ZnO nanotubes [J].
Chen, Yujin ;
Zhu, Chun-Ling ;
Xiao, Gang .
SENSORS AND ACTUATORS B-CHEMICAL, 2008, 129 (02) :639-642
[4]  
Chen ZP, 2011, NAT MATER, V10, P424, DOI [10.1038/NMAT3001, 10.1038/nmat3001]
[5]  
Condon J.B., 2006, Surface Area and Porosity Determinaion Measurments and Theory, P6
[6]   Rapid Synthesis of Ultrahigh Adsorption Capacity Zirconia by a Solution Combustion Technique [J].
Deshpande, Parag A. ;
Polisetti, Sneha ;
Madras, Giridhar .
LANGMUIR, 2011, 27 (07) :3578-3587
[7]   Electrical properties of ZnO nanowire-field effect transistors characterized with scanning probes [J].
Fan, ZY ;
Lu, JG .
APPLIED PHYSICS LETTERS, 2005, 86 (03) :1-3
[8]   2-DIMENSIONAL NUMERICAL-SIMULATION OF SEMICONDUCTOR GAS SENSORS [J].
GERGINTSCHEW, Z ;
FORSTER, H ;
KOSITZA, J ;
SCHIPANSKI, D .
SENSORS AND ACTUATORS B-CHEMICAL, 1995, 26 (1-3) :170-173
[9]   Gas-sensing performance enhancement in ZnO nanostructures by hierarchical morphology [J].
Guo, Weiwei ;
Liu, Tianmo ;
Zhang, Hejing ;
Sun, Rong ;
Chen, Yong ;
Zeng, Wen ;
Wang, Zhongchang .
SENSORS AND ACTUATORS B-CHEMICAL, 2012, 166 :492-499
[10]   Polymer functionalized ZnO nanobelts as oxygen sensors with a significant response enhancement [J].
He, J. H. ;
Ho, C. H. ;
Chen, C. Y. .
NANOTECHNOLOGY, 2009, 20 (06)