Template-free synthesis of nanosheets-assembled SnO2 hollow spheres for enhanced ethanol gas sensing

被引：41
|
作者：
Wang, Bing [1 ,2 ]
Sun, Lian [2 ]
Wang, Yingde [2 ]
机构：
[1] Donghua Univ, Minist Educ, Key Lab High Performance Fibers & Prod, Shanghai 201620, Peoples R China
[2] Natl Univ Def Technol, Sci & Technol Adv Ceram Fibers & Composites Lab, 109 Deya Rd, Changsha 410073, Hunan, Peoples R China
来源：
MATERIALS LETTERS | 2018年 / 218卷
基金：
中国国家自然科学基金;
关键词：
Hollow sphere; SnO2; nanosheets; Hierarchical; Gas sensor; LOW-TEMPERATURE; PERFORMANCE; NANOPARTICLES; MECHANISM; LAYER;
D O I：
10.1016/j.matlet.2018.02.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The specific structure of hollow sphere with hierarchical structure is beneficial to facilitate the gas diffusion and supply more active sites for improving gas sensing performance. In this paper, we report the fabrication of hierarchical SnO2 hollow spheres assembled by ultrathin nanosheets (SnO2 NSHSs) via a template-free hydrothermal method. The formation mechanism and microstructures of the SnO2 NSHSs were discussed and characterized in detail. The SnO2 NSHSs sensor shows a high response and ultrafast response time (5 s) towards ethanol. Furthermore, the SnO2 NSHSs gas sensor also exhibits a low detection limit of ppb level. The enhanced sensing performance can be attributed to the unrestricted gas diffusion in the hierarchical hollow spheres and plenty of active sites on the ultrathin SnO2 nanosheets. (c) 2018 Elsevier B. V. All rights reserved.
引用
收藏
页码：290 / 294
页数：5
相关论文
共 50 条
  • [1] Template-free synthesis of SnO2 nanostructural hollow spheres covered by nanorods
    Zheng, Chunlong
    Zheng, Xiangzhen
    Hong, Zhensheng
    Ding, Xiaokun
    Wei, Mingdeng
    [J]. MATERIALS LETTERS, 2011, 65 (11) : 1645 - 1647
  • [2] Template-free synthesis of highly ethanol-response hollow SnO2 spheres using hydrothermal process
    Zeng, Wen
    Li, Tianming
    Li, Tengfei
    Hao, Jinghua
    Li, Yanqiong
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2015, 26 (02) : 1192 - 1197
  • [3] Template-free synthesis of highly ethanol-response hollow SnO2 spheres using hydrothermal process
    Wen Zeng
    Tianming Li
    Tengfei Li
    Jinghua Hao
    Yanqiong Li
    [J]. Journal of Materials Science: Materials in Electronics, 2015, 26 : 1192 - 1197
  • [4] Template-free fabrication of SnO2 hollow spheres with photoluminescence from Sni
    Yan, Weiwei
    Fang, Ming
    Tan, Xiaoli
    Liu, Mao
    Liu, Peisheng
    Hu, Xiaoye
    Zhang, Lide
    [J]. MATERIALS LETTERS, 2010, 64 (19) : 2033 - 2035
  • [5] Template-free synthesis of nanoarrays SnO2 hollow microcubes with high gas-sensing performance to ether
    Wan, Wenjing
    Li, Yuehua
    Zhang, Jianhong
    Ren, Xingping
    Zhao, Yanping
    Zhao, Heyun
    [J]. MATERIALS LETTERS, 2019, 236 : 46 - 50
  • [6] Alkaline- and template-free hydrothermal synthesis of stable SnO2 nanoparticles and nanorods for CO and ethanol gas sensing
    Matin, Bahareh Mehrabi
    Mortazavi, Yadollah
    Khodadadi, Abbas Ali
    Abbasi, Alireza
    Firooz, Azam Anaraki
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2010, 151 (01): : 140 - 145
  • [7] Template-free synthesis of hierarchical porous SnO2
    Li, Guisheng
    Leung, Michael K. H.
    [J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2010, 53 (03) : 499 - 503
  • [8] Template-free synthesis of hierarchical porous SnO2
    Guisheng Li
    Michael K. H. Leung
    [J]. Journal of Sol-Gel Science and Technology, 2010, 53 : 499 - 503
  • [9] Facile synthesis and gas sensing properties of hollow urchin-like SnO2 nanospheres synthesized by template-free hydrothermal route
    Li, Cheng
    Zhang, Jianhong
    Ren, Xingping
    Zhao, Yanping
    Zhao, Heyun
    [J]. MATERIALS LETTERS, 2019, 254 : 324 - 328
  • [10] Template-free synthesis of SnO2 hollow nanostructures with high lithium storage capacity
    Lou, Xiong Wen
    Wang, Yong
    Yuan, Chongli
    Lee, Jim Yang
    Archer, Lynden A.
    [J]. ADVANCED MATERIALS, 2006, 18 (17) : 2325 - +
12345