A microcube-like hierarchical heterostructure of α-Fe2O3@α-MoO3 for trimethylamine sensing

被引:22
|
作者
Yang, Jing [1 ]
Liu, Jiaqiang [1 ]
Baihan Li [1 ]
Han, Le [1 ]
Xu, Yan [1 ]
机构
[1] Northeastern Univ, Dept Chem, Coll Sci, Shenyang 110819, Liaoning, Peoples R China
基金
美国国家科学基金会;
关键词
GAS; TRIETHYLAMINE; PERFORMANCE; ALPHA-MOO3; SENSOR; NANOSTRUCTURES; HETEROJUNCTION; NANONEEDLES; COMPOSITES; NANORODS;
D O I
10.1039/d0dt01521k
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A rational design and directional synthesis of well-defined porous metal oxide heterostructures remains a challenge for the fabrication of new gas sensors with enhanced sensing properties. Herein, a novel hierarchical heterostructure of alpha-Fe2O3@alpha-MoO(3)microcubes was prepared by applying a self-sacrifice template strategy, in which a porous metal-organic framework (MOF) was used as the precursor with the partial insertion of OH(-)and MoO(4)(2-)and extraction of [Fe(CN)(6)](3)(4-)followed by heating treatment. Benefiting from the porous microcubic structural characteristic, the alpha-Fe2O3@alpha-MoO(3)heterostructures exhibited excellent selectivity and high sensitivity for triethylamine gas with the highest response value (R-a/R-g) of 18.64 under the operating temperature of 240 degrees C. The experimental results also revealed that the material showed a fast response and recovery time (12 s/106 s) and excellent repeatability for at least 20 days. This feasible synthetic strategy may provide a versatile and controlled way to prepare other polymetal oxide-based heterostructures with improved sensing performance.
引用
收藏
页码:8114 / 8121
页数:8
相关论文
共 50 条
  • [1] Trimethylamine sensing properties of MoO3 nanofibers
    Song Zou
    Jingxuan Wu
    Bo Wang
    Qingsong Luo
    Wenjun Wang
    Zhenxing Wang
    Yu Wan
    Changhao Feng
    [J]. Journal of Materials Science: Materials in Electronics, 2023, 34
  • [2] Trimethylamine sensing properties of MoO3 nanofibers
    Zou, Song
    Wu, Jingxuan
    Wang, Bo
    Luo, Qingsong
    Wang, Wenjun
    Wang, Zhenxing
    Wan, Yu
    Feng, Changhao
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2023, 34 (16)
  • [3] Branch-like Hierarchical Heterostructure (α-Fe2O3/TiO2): A Novel Sensing Material for Trimethylamine Gas Sensor
    Lou, Zheng
    Li, Feng
    Deng, Jianan
    Wang, LiLi
    Zhang, Tong
    [J]. ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (23) : 12310 - 12316
  • [4] Ppb-level detection of trimethylamine as biomarker in exhaled gas based on MoO3/V2O5 hierarchical heterostructure
    Sui, Xiaoxiao
    Zhang, Dongzhi
    Wang, Jianghao
    Tang, Mingcong
    Xia, Hao
    Wang, Zihu
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 968
  • [5] Trimethylamine sensing properties of sensors based on MoO3 microrods
    Chu, Xiangfeng
    Liang, Shiming
    Sun, Wenqi
    Zhang, Wangbing
    Chen, Tongyun
    Zhang, Qianfeng
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2010, 148 (02): : 399 - 403
  • [6] In2O3-functionalized MoO3 heterostructure nanobelts with improved gas-sensing performance
    Zhang, Su
    Song, Peng
    Zhang, Jia
    Li, Zhuoqi
    Yang, Zhongxi
    Wang, Qi
    [J]. RSC ADVANCES, 2016, 6 (56): : 50423 - 50430
  • [7] Research on synthesis of Cu3Mo2O9/MoO3 nanocomposite and trimethylamine gas sensing properties
    Bi Wen-Jie
    Yang Shuang
    Zhou Jing
    Jin Wei
    Chen Wen
    [J]. ACTA PHYSICA SINICA, 2023, 72 (16)
  • [8] Synthesis and enhanced toluene gas sensing properties of 1-D α-MoO3/Fe2(MoO4)3 heterostructure
    Li, Jintao
    Wang, Liwei
    Liu, Hongjie
    Zhao, Jing
    Li, Xiao
    Wei, Hao
    Han, Yafei
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 694 : 939 - 945
  • [9] A fast response ppb-level aniline gas sensor based on hierarchical hollow spheres of α-Fe2O3/α-MoO3 heterostructure
    Sui, Lili
    Zhang, Wenzhi
    Wang, Ping
    Zhao, Bing
    Wu, Hongyuan
    Zhao, Dan
    Dong, Guohua
    Yu, Haixia
    Xu, Yingming
    Huo, Lihua
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2021, 346
  • [10] Surface interactions of MoO3/a-Fe2O3 system
    XU Fei
    [J]. Science Bulletin, 2000, (03) : 214 - 219