• Journal of Inorganic Materials
  • Vol. 37, Issue 1, 65 (2022)
Xiaomei CHEN*, Ying CHEN, and Xia YUAN
Author Affiliations
  • School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China
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    DOI: 10.15541/jim20210192 Cite this Article
    Xiaomei CHEN, Ying CHEN, Xia YUAN. Decomposition of Cyclohexyl Hydroperoxide Catalyzed by Core-shell Material Co3O4@SiO2[J]. Journal of Inorganic Materials, 2022, 37(1): 65 Copy Citation Text show less
    FT-IR spectra of catalytic materials
    . FT-IR spectra of catalytic materials
    XRD patterns of catalytic materials
    . XRD patterns of catalytic materials
    TEM images of Co3O4@SiO2 prepared with different ethanol contents
    . TEM images of Co3O4@SiO2 prepared with different ethanol contents
    TEM images and shell thickness statistics of Co3O4@SiO2 prepared with different concentrations of CTAB
    . TEM images and shell thickness statistics of Co3O4@SiO2 prepared with different concentrations of CTAB
    TEM images and shell thickness statistics of Co3O4@SiO2 prepared with different TEOS dosages
    . TEM images and shell thickness statistics of Co3O4@SiO2 prepared with different TEOS dosages
    N2 physical adsorption and desorption isotherms (a) and pore size distribution (b) of Co3O4@SiO2
    . N2 physical adsorption and desorption isotherms (a) and pore size distribution (b) of Co3O4@SiO2
    Appearance comparison of Co3O4@SiO2(VTEOS = 2.0 mL) before and after the reaction
    . Appearance comparison of Co3O4@SiO2(VTEOS = 2.0 mL) before and after the reaction
    Reaction evaluation results of fresh and recovered samples catalytic materials
    . Reaction evaluation results of fresh and recovered samples catalytic materials
    TEM images of Co3O4@SiO2 (CCTAB=25 mmol/L) recovered after 5 cycles
    . TEM images of Co3O4@SiO2 (CCTAB=25 mmol/L) recovered after 5 cycles
    SamplenCTAB/nTEOSSBET/(m2∙g-1) Dpore/nm Vpore/(cm3∙g-1)
    Co3O4@SiO2 (VFETOH = 30%) 2.563323.180.22
    Co3O4@SiO2 (VFETOH = 50%) 2.563343.180.24
    Co3O4@SiO2 (VFETOH = 90%) 2.563192.940.18
    Co3O4@SiO2 (CCTAB = 5 mmol/L) 0.932542.820.16
    Co3O4@SiO2 (CCTAB = 25 mmol/L) 4.673962.940.21
    Co3O4@SiO2 (VTEOS = 0.8 mL) 3.843272.940.18
    Co3O4@SiO2 (VTEOS = 2.0 mL) 1.544862.940.27
    Table 1. Physical structural properties of catalytic materials
    EntrySampleCo content/%
    1Co3O4@SiO2 (VFETOH = 90%) 39.9
    2Co3O4@SiO2 (CCTAB = 5 mmol/L) 40.1
    3Co3O4@SiO2 (CCTAB = 25 mmol/L) 39.3
    4Co3O4@SiO2 (VTEOS = 0.8 mL) 47.8
    5Co3O4@SiO2 (VTEOS = 2.0 mL) 30.6
    Table 2. Co content of catalytic materials
    Catalytic materialCon./%Selectivity/%
    AKAcidEsterA+K
    Blank11.58162.2736.1612.5614.40198.43
    Co3O486.8369.1538.086.73-15.63107.23
    Co3O4@SiO2 (VFETOH = 30%) 41.5466.9337.708.14-26.54104.62
    Co3O4@SiO2 (VFETOH = 50%) 60.4467.7332.877.33-18.46100.60
    Co3O4@SiO2 (VFETOH = 90%) 52.6264.5830.208.54-25.1594.79
    Co3O4@SiO2 (CCTAB = 5 mmol/L) 55.6274.7236.686.59-20.69111.40
    Co3O4@SiO2 (CCTAB =25 mmol/L) 66.6872.1831.016.83-15.76103.19
    Co3O4@SiO2 (VTEOS = 0.8 mL) 81.6870.6034.067.12-15.97104.65
    Co3O4@SiO2 (VTEOS = 2.0 mL) 73.5564.7527.906.28-18.7492.64
    Table 3. Catalytic performance of catalytic materials in CHHP decomposition reaction
    Xiaomei CHEN, Ying CHEN, Xia YUAN. Decomposition of Cyclohexyl Hydroperoxide Catalyzed by Core-shell Material Co3O4@SiO2[J]. Journal of Inorganic Materials, 2022, 37(1): 65
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