Highly improved toluene gas-sensing performance of mesoporous Ag-anchored cobalt oxides nanowires

被引：23
|
作者：
Yue, J. H. [1 ]
Wang, L. [1 ]
Xu, J. C. [1 ]
Jin, H. X. [1 ]
Hong, B. [1 ]
Jin, D. F. [1 ]
Gong, J. [1 ]
Peng, X. L. [1 ]
Ge, H. L. [1 ]
Wang, X. Q. [1 ]
机构：
[1] China Jiliang Univ, Coll Mat Sci & Chem, Hangzhou 310018, Peoples R China
来源：
ADVANCED POWDER TECHNOLOGY | 2022年 / 33卷 / 11期
关键词：
Ag-loading; Microstructure; Toluene gas; Gas-sensing performance; ORGANIC FRAMEWORK; CARBON-MONOXIDE; OPTICAL-PROPERTIES; CO3O4; NANOPARTICLES; NANOCATALYSTS; MECHANISM; VOCS; WO3;
D O I：
10.1016/j.apt.2022.103832
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Mesoporous cobalt oxides nanowires (Co3O4 NWs) were synthesized by the nanocasting method, and then Ag nanoparticles with the different content were anchored on the surface of Co3O4 NWs. The exper-imental results indicate that Ag nanoparticles hardly affect the morphology and microstructure of Co3O4 NWs and actually exist on the surface of Co3O4 NWs. It is worth mentioning that Ag-loading greatly improves the toluene gas-sensing performance of Ag-anchored Co3O4 NWs. The operating temperature of Ag-anchored Co3O4 NWs sensors decreases from 210 degrees C for Co3O4 NWs sensor to 190 degrees C, while the response to 100 ppm toluene gas increases 3-folds. Ag0.166-Co3O4 NWs sensor exhibits the best gas -sensing performance due to the optimal Ag-loading content. Ag nanoparticles not only provide more effective oxygen adsorption sites to reduce resistance in air, but also form metal-semiconductor hetero-junctions at the Ag/Co3O4 interface to increase resistance in toluene gas. In this way, Ag-loading can fur-ther improve the gas-sensing performance of mesoporous Ag-anchored Co3O4 NWs sensors to toluene gas.(c) 2022 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
引用
收藏
页数：9
相关论文
共 33 条
  • [1] Highly improved toluene gas-sensing performance of mesoporous Co3O4 nanowires and physical mechanism
    Wang, L.
    Song, S. Y.
    Hong, B.
    Xu, J. C.
    Han, Y. B.
    Jin, H. X.
    Jin, D. F.
    Li, J.
    Yang, Y. T.
    Peng, X. L.
    Ge, H. L.
    Wang, X. Q.
    MATERIALS RESEARCH BULLETIN, 2021, 140
  • [2] High-valence cations-doped mesoporous nickel oxides nanowires: Nanocasting synthesis, microstructures and improved gas-sensing performance
    Chen, H. D.
    Jin, K. L.
    Xu, J. C.
    Han, Y. B.
    Jin, H. X.
    Jin, D. F.
    Peng, X. L.
    Hong, B.
    Li, J.
    Yang, Y. T.
    Gong, J.
    Ge, H. L.
    Wang, X. Q.
    SENSORS AND ACTUATORS B-CHEMICAL, 2019, 296
  • [3] Mesoporous-structure enhanced gas-sensing properties of nickel oxides nanowires
    Li, Xiaoqing
    Li, Danping
    Xu, Jingcai
    Jin, Hongxiao
    Jin, Dingfeng
    Peng, Xiaoling
    Hong, Bo
    Li, Jing
    Yang, Yanting
    Ge, Hongliang
    Wang, Xinqing
    MATERIALS RESEARCH BULLETIN, 2017, 89 : 280 - 285
  • [4] Nanocasting synthesis and highly-improved toluene gas-sensing performance of Co3O4 nanowires with high-valence Sn-doping
    Wang, L.
    Xu, J. C.
    Han, Y. B.
    Jin, H. X.
    Hong, B.
    Jin, D. F.
    Gong, J.
    Peng, X. L.
    Ge, H. L.
    Wang, X. Q.
    CHEMICAL PHYSICS, 2022, 560
  • [5] Highly enhanced gas-sensing properties of indium-doped mesoporous hematite nanowires
    Chen, H. D.
    Jin, K. L.
    Wang, P. F.
    Xu, J. C.
    Han, Y. B.
    Jin, H. X.
    Jin, D. F.
    Peng, X. L.
    Hong, B.
    Li, J.
    Yang, Y. T.
    Gong, J.
    Ge, H. L.
    Wang, X. Q.
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2018, 120 : 271 - 278
  • [6] Preparation of porous sea-urchin-like CuO/ZnO composite nanostructure consisting of numerous nanowires with improved gas-sensing performance
    Ren, Haibo
    Weng, Huaipeng
    Zhao, Pengfei
    Zuo, Ruzhong
    Lu, Xiaojing
    Huang, Jiarui
    FRONTIERS OF MATERIALS SCIENCE, 2022, 16 (01)
  • [7] Porous cobalt oxide nanowires: Notable improved gas sensing performances
    Ma MaiXia
    Pan ZhiYun
    Guo Lin
    Li JingHong
    Wu ZiYu
    Yang ShiHe
    CHINESE SCIENCE BULLETIN, 2012, 57 (31): : 4019 - 4023
  • [8] The highly improved gas-sensing performance of α-Fe2O3-decorated NiO nanowires and the interfacial effect of p-n heterojunctions
    Wang, L.
    Hong, B.
    Chen, H. D.
    Xu, J. C.
    Han, Y. B.
    Jin, H. X.
    Jin, D. F.
    Peng, X. L.
    Ge, H. L.
    Wang, X. Q.
    JOURNAL OF MATERIALS CHEMISTRY C, 2020, 8 (11) : 3855 - 3864
  • [9] Improved ethanol gas-sensing properties of optimum Fe-ZnO mesoporous nanoparticles
    Shen, Yue
    Li, Qinyi
    Li, Tai
    Cao, Meng
    Gu, Feng
    Wang, Linjun
    Zhu, Da-Ming
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2020, 31 (04) : 3074 - 3083
  • [10] Ag-nanoparticles-anchored mesoporous In2O3 nanowires for ultrahigh sensitive formaldehyde gas sensors
    Kong, D. L.
    Niu, J. Y.
    Hong, B.
    Xu, J. C.
    Han, Y. B.
    Peng, X. L.
    Ge, H. L.
    Li, J.
    Zeng, Y. X.
    Wang, X. Q.
    MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2023, 291
1234