Enhanced Gas Sensing Properties of SnO2 Hollow Spheres Decorated with CeO2 Nanoparticles Heterostructure Composite Materials

被引：294
作者：
Liu, Jiangyang [1 ]
Dai, Mingjun [1 ]
Wang, Tianshuang [1 ]
Sun, Peng [1 ]
Liang, Xishuang [1 ]
Lu, Geyu [1 ]
Shimanoe, Kengo [2 ]
Yamazoe, Noboru [2 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, 2699 Qianjin St, Changchun 130012, Peoples R China
[2] Kyushu Univ, Fac Engn Sci, Dept Energy & Mat Sci, Kasuga, Fukuoka 8168580, Japan
来源：
ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 10期
关键词：
CeO2/SnO2; composites; heterostructure; hollow spheres; gas sensor; sensing mechanism; METAL-OXIDES; SENSORS; NANOSHEETS; NANOCRYSTALS; FABRICATION; NANOWIRES; NANORODS; BEHAVIOR; ETHANOL; ROUTE;
D O I：
10.1021/acsami.6b00169
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
CeO2 decorated SnO2 hollow spheres were successfully synthesized via a two-step hydrothermal strategy. The morphology and structures of as-obtained CeO2/SnO2 composites were analyzed by various kinds of techniques. The SnO2 hollow spheres with uniform size around 300 rim were self-assembled with SnO2 nanoparticles and were hollow with a diameter of about 100 nm. The CeO2 nanoparticles on the surface of SnO2 hollow spheres could be clearly observed. X-ray photoelectron spectroscopy results confirmed the existence of Ce3+ and the increased amount of both chemisorbed oxygen and oxygen vacancy after the CeO2 decorated. Compared with pure SnO2 hollow spheres, such, composites revealed excellent enhanced sensing properties to ethanol. When the ethanol concentration was 100 ppm, the sensitivity of the CeO2/SnO2 composites was 37, which was 2.65-times higher than that of the primary SnO2 hollow spheres. The sensing mechanism of the enhanced gas sensing properties Was also discussed.
引用
收藏
页码：6669 / 6677
页数：9
相关论文
共 56 条
  • [1] Surface-Dependence of Defect Chemistry of Nanostructured Ceria
    Agarwal, S.
    Zhu, X.
    Hensen, E. J. M.
    Mojet, B. L.
    Lefferts, L.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (22) : 12423 - 12433
  • [2] Micromachined twin gas sensor for CO and O2 quantification based on catalytically modified nano-SnO2
    Belmonte, JC
    Manzano, J
    Arbiol, J
    Cirera, A
    Puigcorbé, J
    Vilà, A
    Sabaté, N
    Gràcia, I
    Cané, C
    Morante, JR
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2006, 114 (02) : 881 - 892
  • [3] Nanopillar ZnO gas sensor for hydrogen and ethanol
    Bie, Li-Jian
    Yan, Xiao-Na
    Yin, Jing
    Duan, Yue-Qin
    Yuan, Zhi-Hao
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2007, 126 (02) : 604 - 608
  • [4] A Facile and Green Approach for the Controlled Synthesis of Porous SnO2 Nanospheres: Application as an Efficient Photocatalyst and an Excellent Gas Sensing Material
    Boppella, P. Manjula Ramireddy
    Manorama, Sunkara V.
    [J]. ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (11) : 6252 - 6260
  • [5] Gas sensing properties of nanocrystalline NiO and Co3O4 in porous silica sol-gel films
    Cantalini, C
    Post, M
    Buso, D
    Guglielmi, A
    Martucci, A
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2005, 108 (1-2): : 184 - 192
  • [6] Synergistically enhanced oxygen reduction activity of MnOx-CeO2/Ketjenblack composites
    Chen, Jiajie
    Zhou, Nan
    Wang, Haiyan
    Peng, Zhiguang
    Li, Huiyong
    Tang, Yougen
    Liu, Kun
    [J]. CHEMICAL COMMUNICATIONS, 2015, 51 (50) : 10123 - 10126
  • [7] Polishing behavior of PS/CeO2 hybrid microspheres with controlled shell thickness on silicon dioxide CMP
    Chen, Yang
    Long, Renwei
    [J]. APPLIED SURFACE SCIENCE, 2011, 257 (20) : 8679 - 8685
  • [8] Synthesis and enhanced gas sensing properties of crystalline CeO2/TiO2 core/shell nanorods
    Chen, Yu-Jin
    Xiao, Gang
    Wang, Tie-Shi
    Zhang, Fan
    Ma, Yang
    Gao, Peng
    Zhu, Chun-Ling
    Zhang, Endi
    Xu, Zhi
    Li, Qiu-hong
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2011, 156 (02): : 867 - 874
  • [9] In2O3-SnO2 nano-toasts and nanorods: Precipitation preparation, formation mechanism, and gas sensitive properties
    Chu, Dewei
    Zeng, Yu-Ping
    Jiang, Dongliang
    Masuda, Yoshitake
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2009, 137 (02) : 630 - 636
  • [10] Size dependency variation in lattice parameter and valency states in nanocrystalline cerium oxide
    Deshpande, S
    Patil, S
    Kuchibhatla, SVNT
    Seal, S
    [J]. APPLIED PHYSICS LETTERS, 2005, 87 (13) : 1 - 3
123456