Rational design of sensitivity enhanced and stability improved TEA gas sensor assembled with Pd nanoparticles-functionalized In2O3 composites

被引:114
作者
Liu, Xiaojing [1 ]
Zhao, Kunrong [1 ]
Sun, Xiaoli [1 ]
Zhang, Chong [1 ]
Duan, Xinping [1 ]
Hou, Peiyu [1 ]
Zhao, Gang [1 ]
Zhang, Shouwei [1 ]
Yang, Hongcen [1 ]
Cao, Ruya [1 ]
Xu, Xijin [1 ]
机构
[1] Univ Jinan, Sch Phys & Technol, Jinan 250022, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
Triethylamine; Gas sensors; In2O3; TRIETHYLAMINE SENSING PROPERTIES; VOLATILE ORGANIC-COMPOUNDS; ROOM-TEMPERATURE; HOLLOW SPHERES; FAST-RESPONSE; NANOSTRUCTURES; NANOCUBOIDS; NANORODS; OXYGEN;
D O I
10.1016/j.snb.2019.01.029
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In this work, special triethylamine (TEA) gas sensors based on Pd nanoparticles (NPs)-decorated In2O3 microstructures with different Pd amount have been successfully fabricated. The optimal sensor based on 3 wt% Pd-loaded In2O3 shows higher gas response compared with other content of Pd wt% and exhibits the highest response of 47.56 when exposed to 50 ppm TEA gas. Furthermore, 3 wt% Pd NPs-In2O3 sensor not only possesses superior response and recovery properties of 4 s and 17 s under 50 ppm TEA gas, respectively, but also displays outstanding selectivity to TEA gas at the existence of other interfering gases. Based on the model of depletion layer, the possible gas sensing mechanism are studied and the results show that, the synergistic effect between the sensitization exerted by Pd nanoparticles and structural defects may be responsible for the remarkably enhanced TEA sensing performance. Considering the superiority including low cost, simple structure, and facile fabrication, 3 wt% Pd NPs-In2O3 microstructures are promising for high-performance TEA sensing applications.
引用
收藏
页码:1 / 10
页数:10
相关论文
共 56 条
[1]   Low-temperature hydrothermal synthesis of WO3 nanorods and their sensing properties for NO2 [J].
Bai, Shouli ;
Zhang, Kewei ;
Luo, Ruixian ;
Li, Dianqing ;
Chen, Aifan ;
Liu, Chung Chiun .
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (25) :12643-12650
[2]   The biodegradation pathway of triethylamine and its biodegradation by immobilized Arthrobacter protophormiae cells [J].
Cai, Tianming ;
Chen, Liwei ;
Ren, Qian ;
Cai, Shu ;
Zhang, Jin .
JOURNAL OF HAZARDOUS MATERIALS, 2011, 186 (01) :59-66
[3]   Isopropanol sensing properties of coral-like ZnO-CdO composites by flash preparation via self-sustained decomposition of metalorganic complexes [J].
Cai, Xiaoyan ;
Hu, Dan ;
Deng, Shaojuan ;
Han, Bingqian ;
Wang, Yan ;
Wu, Jinming ;
Wang, Yude .
SENSORS AND ACTUATORS B-CHEMICAL, 2014, 198 :402-410
[4]   Enhanced H2 gas sensing properties of Au@In2O3 core-shell hybrid metal-semiconductor heteronanostructures [J].
Chava, Rama Krishna ;
Oh, Sang-Yeob ;
Yu, Yeon-Tae .
CRYSTENGCOMM, 2016, 18 (20) :3655-3666
[5]   Bimetallic Pd/Pt nanoparticle-functionalized SnO2 nanowires for fast response and recovery to NO2 [J].
Choi, Sun-Woo ;
Katoch, Akash ;
Sun, Gun-Joo ;
Kim, Sang Sub .
SENSORS AND ACTUATORS B-CHEMICAL, 2013, 181 :446-453
[6]   Green synthesis of sucralose-capped silver nanoparticles for fast colorimetric triethylamine detection [J].
Filippo, E. ;
Manno, D. ;
Buccolieri, A. ;
Serra, A. .
SENSORS AND ACTUATORS B-CHEMICAL, 2013, 178 :1-9
[7]   3D hierarchical In2O3 nanoarchitectures consisting of nanocuboids and nanosheets for chemical sensors with enhanced performances [J].
Gong, Feilong ;
Liu, Huanzhen ;
Liu, Chunyuan ;
Gong, Yuyin ;
Zhang, Yonghui ;
Meng, Erchao ;
Li, Feng .
MATERIALS LETTERS, 2016, 163 :236-239
[8]   Porous In2O3 nanocuboids modified with Pd nanoparticles for chemical sensors [J].
Gong, Feilong ;
Gong, Yuyin ;
Liu, Huanzhen ;
Zhang, Meiling ;
Zhang, Yonghui ;
Li, Feng .
SENSORS AND ACTUATORS B-CHEMICAL, 2016, 223 :384-391
[9]   Flower-like In2O3 hierarchical nanostructures: synthesis, characterization, and gas sensing properties [J].
Han, Dan ;
Song, Peng ;
Zhang, Huihui ;
Yan, Huihui ;
Xu, Qi ;
Yang, Zhongxi ;
Wang, Qi .
RSC ADVANCES, 2014, 4 (91) :50241-50248
[10]   Controlled synthesis of flower-like In2O3 microrods and their highly improved selectivity toward ethanol [J].
Huang, Feng ;
Yang, Wei ;
He, Fei ;
Liu, Shantang .
SENSORS AND ACTUATORS B-CHEMICAL, 2016, 235 :86-93