Ceria-modified hierarchical Hβ zeolite as a robust solid acid catalyst for alkenylation of p-xylene with phenylacetylene

Guo, Yongle; Zhang, Yu; Zhao, Zhongkui

doi:10.1016/s1872-2067(17)62985-1

Cited by 10 publications

(3 citation statements)

References 42 publications

(42 reference statements)

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“…The inconspicuous hysteresis loop at high relative pressure ranges (0.95 < P/P 0 < 1.0) indicates the presence of mesopores. 21,22 Hence it is deduced that the overall micro-mesoporous structure of Hβ ( 40) is not completely destroyed as a result of the dealumination treatment (Fig. 2).…”

Section: Resultsmentioning

confidence: 97%

“…The result indicated that the general structural nature of Hβ (40) was maintained after dealumination. 21,23…”

Section: Resultsmentioning

confidence: 99%

“…The result indicated that the general structural nature of Hβ (40) was maintained after dealumination. 21,23 3.1.3 TG/DTG. The thermostability of the prepared samples is characterized by TG/DTG, and the result is presented in Fig.…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

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Efficient and high para-selective conversion of toluene with NO₂ to para-nitrotoluene in an O₂–Ac₂O–HβD4 composite catalytic system

Deng,

Liu,

Cui

et al. 2024

Catal. Sci. Technol.

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Section: Resultsmentioning

confidence: 97%

“…The result indicated that the general structural nature of Hβ (40) was maintained after dealumination. 21,23…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Efficient and high para-selective conversion of toluene with NO₂ to para-nitrotoluene in an O₂–Ac₂O–HβD4 composite catalytic system

Deng,

Liu,

Cui

et al. 2024

Catal. Sci. Technol.

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Regioselective nitration of toluene to para‐nitrotoluene with NO₂ over dealumination Hβ zeolite: Comparison of organic and inorganic acids

et al. 2022

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This work presents a novel heterogeneous catalytic system for the preparation of para-nitrotoluene (p-NT) with nitrogen dioxide (NO 2 ) as a nitrating agent in the presence of oxygen (O 2 ). By applying dealuminated Hβ zeolite treated with oxalic acid (Hβ-Ox) as a catalyst, p-NT can be obtained with high conversion (90.5%) and selectivity (72.6%). In addition, it can be recycled at least five times without a significant decrease in catalytic activity. This result demonstrates that the catalyst has high efficiency, good stability, and regenerability. Meanwhile, the characteristics of pristine Hβ and different dealuminated Hβ zeolites modified with organic and inorganic acids were systematic contrastive studied using X-ray diffraction (XRD), nitrogen (N 2 ) adsorption-desorption, Fourier-transform infrared (FT-IR), scanning electron microscope (SEM), temperature-programed desorption of ammonia (NH 3 -TPD), pyridine adsorption infrared (Py-FT-IR), and solid state 27 Al nuclear magnetic resonance ( 27 Al MAS-NMR). Finally, the higher conversion and para-selectivity over Hβ-Ox also give a reasonable explanation in this paper.

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Para-selective nitration of bromobenzene catalyzed by Hβ zeolite with NO2 and its theoretical studies

Deng

Zeng²,

Yao

2022

Res Chem Intermed

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Ceria-modified hierarchical Hβ zeolite as a robust solid acid catalyst for alkenylation of p-xylene with phenylacetylene

Cited by 10 publications

References 42 publications

Efficient and high para-selective conversion of toluene with NO₂ to para-nitrotoluene in an O₂–Ac₂O–HβD4 composite catalytic system

Efficient and high para-selective conversion of toluene with NO₂ to para-nitrotoluene in an O₂–Ac₂O–HβD4 composite catalytic system

Regioselective nitration of toluene to para‐nitrotoluene with NO₂ over dealumination Hβ zeolite: Comparison of organic and inorganic acids

Para-selective nitration of bromobenzene catalyzed by Hβ zeolite with NO2 and its theoretical studies

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Ceria-modified hierarchical Hβ zeolite as a robust solid acid catalyst for alkenylation of p-xylene with phenylacetylene

Cited by 10 publications

References 42 publications

Efficient and high para-selective conversion of toluene with NO2 to para-nitrotoluene in an O2–Ac2O–HβD4 composite catalytic system

Efficient and high para-selective conversion of toluene with NO2 to para-nitrotoluene in an O2–Ac2O–HβD4 composite catalytic system

Regioselective nitration of toluene to para‐nitrotoluene with NO2 over dealumination Hβ zeolite: Comparison of organic and inorganic acids

Para-selective nitration of bromobenzene catalyzed by Hβ zeolite with NO2 and its theoretical studies

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Product

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Efficient and high para-selective conversion of toluene with NO₂ to para-nitrotoluene in an O₂–Ac₂O–HβD4 composite catalytic system

Efficient and high para-selective conversion of toluene with NO₂ to para-nitrotoluene in an O₂–Ac₂O–HβD4 composite catalytic system

Regioselective nitration of toluene to para‐nitrotoluene with NO₂ over dealumination Hβ zeolite: Comparison of organic and inorganic acids