Flower-like hierarchical structures consisting of porous single-crystalline ZnO nanosheets and their gas sensing properties to volatile organic compounds (VOCs)

被引：99
作者：
Meng, Fanli [1 ,4 ]
Hou, Nannan [1 ,2 ]
Ge, Sheng [3 ]
Sun, Bai [1 ]
Jin, Zhen [1 ]
Shen, Wei [1 ]
Kong, Lingtao [1 ]
Guo, Zheng [1 ]
Sun, Yufeng [3 ]
Wu, Hao [4 ]
Wang, Chen [4 ]
Li, Minqiang [1 ]
机构：
[1] Chinese Acad Sci, Inst Intelligent Machines, Res Ctr Biomimet Funct Mat & Sensing Devices, Hefei 230031, Peoples R China
[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
[3] Anhui Polytech Univ, Dept Mech & Automot Engn, Wuhu 241000, Peoples R China
[4] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 626卷
基金：
中国国家自然科学基金;
关键词：
Nanostructures; Oxides; Flower-like hierarchical structure; Porous single-crystalline ZnO nanosheets; Volatile organic compounds; SENSOR; NANOSTRUCTURES; PERFORMANCE; FABRICATION; SNO2; NANOWIRES; BENZENE; GROWTH; ARRAY;
D O I：
10.1016/j.jallcom.2014.11.175
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Flower-like hierarchical structures consisting of porous single-crystalline ZnO nanosheets (FHPSCZNs) were synthesized by a one-pot wet-chemical method followed by an annealing treatment, which combined the advantages between flower-like hierarchical structure and porous single-crystalline structure. XRD, SEM and HRTEM were used to characterize the synthesized FHPSCZN samples. The sensing properties of the FHPSCZN sensor were also investigated by comparing with ZnO powder sensor, which exhibited higher response and shorter response and recovery times. The sensing mechanism of the FHPSCZN sensor has been further analyzed from the aspects of electronic transport and gas diffusion. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：124 / 130
页数：7
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