The synthesis of hollow In2O3 @ Pd-Co3O4 core/shell nanofibers with ultra-thin shell for the low-temperature CO oxidation reaction

被引：20
作者：
Du, Xuebi [1 ,2 ,3 ]
Dong, Fang [2 ,3 ]
Tang, Zhicheng [2 ,3 ]
Zhang, Jiyi [1 ]
机构：
[1] Lanzhou Univ Technol, Sch Petr & Chem, Lanzhou 730050, Peoples R China
[2] Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Natl Engn Res Ctr Fine Petrochem Intermediates, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2020年 / 505卷
基金：
中国国家自然科学基金;
关键词：
Coaxial electrospinning; In2O3 @ Pd-Co3O4; Core/shell nanofibers; Low-temperature CO oxidation; Catalytic oxidation; CATALYTIC-ACTIVITY; PD/CEO2; CATALYSTS; CO3O4; PERFORMANCE; OXIDE; NANOPARTICLES; MODEL; CEO2; MECHANISMS; NANOCUBES;
D O I：
10.1016/j.apsusc.2019.144471
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：
In this paper, a series of hollow In2O3 @ Pd-Co3O4 core/shell nanofibers with ultra-thin shell about 20-30 nm have been successfully fabricated by coaxial electrospinning, which used in CO oxidation. Desirably, the In2O3 @ Pd-Co3O4 exhibited the higher CO activity with T-90 = 56 degrees C and lower activation energy. Through some characterizations, it is verified that ultra-thin shell structures, stronger redox ability, structure defects, higher proportion of Pd2+ species and smaller proportion of Cos' species and higher chemical adsorbed oxygen species of In2O3 @ Pd-Co3O4 were preponderant to the increase of CO activity. Therefore, the In2O3 @ Pd-Co3O4 catalyst could be considered a prospective candidate for the CO oxidation.
引用
收藏
页数：12
相关论文
共 50 条
  • [31] Synthesis of Core-Shell Nanostructures of Co3O4@SiO2 with Controlled Shell Thickness (5-20 nm) and Hollow Shells of Silica
    Vaidya, Sonalika
    Thaplyal, Pallavi
    Ramanujachary, K. V.
    Lofland, S. E.
    Ganguli, Ashok K.
    [J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2011, 11 (04) : 3405 - 3413
  • [32] Two-step pyrolytic engineering of carbon-doped Co3O4 with rich defects for efficient low-temperature CO oxidation
    Chen, Xi
    Li, Juanjuan
    Cai, Songcai
    Chen, Jing
    Jia, Hongpeng
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2020, 8 (14) : 6619 - 6630
  • [33] Template-free synthesis of Cu2O-Co3O4 core-shell composites and their application in gas sensing
    Qu, Fengdong
    Wang, Yongfan
    Wang, Ying
    Zhou, Jingran
    Ruan, Shengping
    [J]. RSC ADVANCES, 2014, 4 (46): : 24211 - 24216
  • [34] Synthesis of hollow TiO2@g-C3N4/Co3O4 core-shell microspheres for effective photooxidation degradation of tetracycline and MO
    Yu, Bo
    Meng, Fanming
    Khan, Muhammad Wasim
    Qin, Rui
    Liu, Xingbin
    [J]. CERAMICS INTERNATIONAL, 2020, 46 (09) : 13133 - 13143
  • [35] A facile synthesis and lithium storage properties of Co3O4-C hybrid core-shell and hollow spheres
    Zhong, Yeteng
    Wang, Xi
    Jiang, Kecheng
    Zheng, Jian Yao
    Guo, Yuguo
    Ma, Ying
    Yao, Jiannian
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (44) : 17998 - 18002
  • [36] Effect of Pd deposition procedure on activity of Pd/Ce0.5Sn0.5O2 catalysts for low-temperature CO oxidation
    Vasilchenko, D. B.
    Gulyaev, R. V.
    Slavinskaya, E. M.
    Stonkus, O. A.
    Shubin, Yu V.
    Korenev, S. V.
    Boronin, A. I.
    [J]. CATALYSIS COMMUNICATIONS, 2016, 73 : 34 - 38
  • [37] Pd-Loaded In2O3 Hollow Spheres with Enhanced Formaldehyde Sensing at Low Temperature
    Liu, Xiaohua
    Wang, Hong
    Yang, Ruisong
    Liu, Di
    Wan, Jiawei
    Hao, Shuaijun
    Zhang, Qiang
    Chen, Xingkuan
    [J]. NANO, 2021, 16 (01)
  • [38] Synthesis of Monodispere Au@Co3O4 Core-Shell Nanocrystals and Their Enhanced Catalytic Activity for Oxygen Evolution Reaction
    Zhuang, Zhongbin
    Sheng, Wenchao
    Yan, Yushan
    [J]. ADVANCED MATERIALS, 2014, 26 (23) : 3950 - 3955
  • [39] Synthesis and Microwave Absorption Properties of Core-Shell Structured Co3O4-PANI Nanocomposites
    Xu, Hongyan
    Hai, Zhenyin
    Diwu, Jiangtao
    Zhang, Qiang
    Gao, Libo
    Cui, Danfeng
    Zang, Junbin
    Liu, Jun
    Xue, Chenyang
    [J]. JOURNAL OF NANOMATERIALS, 2015, 2015
  • [40] A convenient synthesis of core-shell Co3O4@ZSM-5 catalysts for the total oxidation of dichloromethane (CH2Cl2)
    Fei, Xiaoqi
    Cao, Shuang
    Ouyang, Weilong
    Wen, Yexuan
    Wang, Haiqiang
    Wu, Zhongbiao
    [J]. CHEMICAL ENGINEERING JOURNAL, 2020, 387
12345