TY - JOUR
T1 - Synthesis, characterization of bimetallic Ce-Fe-SBA-15 and its catalytic performance in the phenol hydroxylation
AU - Zhang, Yanhua
AU - Gao, Fei
AU - Wan, Haiqin
AU - Wu, Cheng
AU - Kong, Yan
AU - Wu, Xingcai
AU - Zhao, Bin
AU - Dong, Lin
AU - Chen, Yi
PY - 2008/8/1
Y1 - 2008/8/1
N2 - A series of Ce and Fe incorporated SBA-15 mesoporous materials were synthesized through direct hydrothermal method and characterized by using inductively coupling plasma atomic emission spectrometry (ICP-AES), powder X-ray diffraction (XRD), thermo gravimetry and differential scanning calorimetry (TG/DSC), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible diffuse reflectance spectra (UV-vis) and N2 adsorption-desorption isotherm techniques. The results indicated that: (1) all the samples exhibited typical hexagonal arrangement of mesoporous structure with high surface area, (2) the heteroatoms were, at least in some extent, incorporated into the framework of SBA-15, (3) high utilization of the Fe and Ce could be achieved through the hydrothermal treatment, and (4) the incorporation of Fe could efficiently promote the incorporation/dispersion behavior of Ce into the SBA-15. Catalytic performances of the obtained materials were evaluated in the hydroxylation of phenol with H2O2. Catalytic tests showed the different selectivity with different incorporated Ce/Fe ratios, and the results suggest that an appropriate Ce/Fe ratio would be the optimal catalyst for the reaction.
AB - A series of Ce and Fe incorporated SBA-15 mesoporous materials were synthesized through direct hydrothermal method and characterized by using inductively coupling plasma atomic emission spectrometry (ICP-AES), powder X-ray diffraction (XRD), thermo gravimetry and differential scanning calorimetry (TG/DSC), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible diffuse reflectance spectra (UV-vis) and N2 adsorption-desorption isotherm techniques. The results indicated that: (1) all the samples exhibited typical hexagonal arrangement of mesoporous structure with high surface area, (2) the heteroatoms were, at least in some extent, incorporated into the framework of SBA-15, (3) high utilization of the Fe and Ce could be achieved through the hydrothermal treatment, and (4) the incorporation of Fe could efficiently promote the incorporation/dispersion behavior of Ce into the SBA-15. Catalytic performances of the obtained materials were evaluated in the hydroxylation of phenol with H2O2. Catalytic tests showed the different selectivity with different incorporated Ce/Fe ratios, and the results suggest that an appropriate Ce/Fe ratio would be the optimal catalyst for the reaction.
KW - Bimetal incorporation
KW - Characterization
KW - Phenol hydroxylation
KW - SBA-15
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=44449175955&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2007.11.039
DO - 10.1016/j.micromeso.2007.11.039
M3 - 文章
AN - SCOPUS:44449175955
SN - 1387-1811
VL - 113
SP - 393
EP - 401
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
IS - 1-3
ER -