Structure and catalytic properties of K-doped manganese oxide supported on alumina

Qinghu Tang; Xiaona Huang; Chengming Wu; Peizheng Zhao; Yuanting Chen; Yanhui Yang

doi:10.1016/j.molcata.2009.02.020

Structure and catalytic properties of K-doped manganese oxide supported on alumina

Qinghu Tang, Xiaona Huang, Chengming Wu, Peizheng Zhao, Yuanting Chen, Yanhui Yang

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

In this study, we reported a remarkably improved catalytic activity of Mn/γ-Al₂O₃ catalyst promoted with potassium doping in the selective oxidation of benzyl alcohol with molecular oxygen. Characterizations of powder X-ray diffraction (XRD), Raman spectroscopy, X-ray absorption fine structure (XAFS), and hydrogen temperature-programmed reduction (H₂-TPR) revealed that the co-impregnation of potassium to the Mn/γ-Al₂O₃ gave rise to the presence of α-MnO₂ rather than β-MnO₂, resulting in a stable catalyst with enhanced catalytic performance. We also demonstrated this alumina-supported K-Mn mixed oxide catalyst can effectively catalyze aerobic oxidation of various aromatic alcohols.

Original language	English
Pages (from-to)	48-53
Number of pages	6
Journal	Journal of Molecular Catalysis A: Chemical
Volume	306
Issue number	1-2
DOIs	https://doi.org/10.1016/j.molcata.2009.02.020
State	Published - 1 Jul 2009
Externally published	Yes

Keywords

Alumina
Aromatic alcohol
MnO
Molecular oxygen
Potassium

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10.1016/j.molcata.2009.02.020

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title = "Structure and catalytic properties of K-doped manganese oxide supported on alumina",

abstract = "In this study, we reported a remarkably improved catalytic activity of Mn/γ-Al2O3 catalyst promoted with potassium doping in the selective oxidation of benzyl alcohol with molecular oxygen. Characterizations of powder X-ray diffraction (XRD), Raman spectroscopy, X-ray absorption fine structure (XAFS), and hydrogen temperature-programmed reduction (H2-TPR) revealed that the co-impregnation of potassium to the Mn/γ-Al2O3 gave rise to the presence of α-MnO2 rather than β-MnO2, resulting in a stable catalyst with enhanced catalytic performance. We also demonstrated this alumina-supported K-Mn mixed oxide catalyst can effectively catalyze aerobic oxidation of various aromatic alcohols.",

keywords = "Alumina, Aromatic alcohol, MnO, Molecular oxygen, Potassium",

author = "Qinghu Tang and Xiaona Huang and Chengming Wu and Peizheng Zhao and Yuanting Chen and Yanhui Yang",

year = "2009",

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doi = "10.1016/j.molcata.2009.02.020",

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TY - JOUR

T1 - Structure and catalytic properties of K-doped manganese oxide supported on alumina

AU - Tang, Qinghu

AU - Huang, Xiaona

AU - Wu, Chengming

AU - Zhao, Peizheng

AU - Chen, Yuanting

AU - Yang, Yanhui

PY - 2009/7/1

Y1 - 2009/7/1

N2 - In this study, we reported a remarkably improved catalytic activity of Mn/γ-Al2O3 catalyst promoted with potassium doping in the selective oxidation of benzyl alcohol with molecular oxygen. Characterizations of powder X-ray diffraction (XRD), Raman spectroscopy, X-ray absorption fine structure (XAFS), and hydrogen temperature-programmed reduction (H2-TPR) revealed that the co-impregnation of potassium to the Mn/γ-Al2O3 gave rise to the presence of α-MnO2 rather than β-MnO2, resulting in a stable catalyst with enhanced catalytic performance. We also demonstrated this alumina-supported K-Mn mixed oxide catalyst can effectively catalyze aerobic oxidation of various aromatic alcohols.

AB - In this study, we reported a remarkably improved catalytic activity of Mn/γ-Al2O3 catalyst promoted with potassium doping in the selective oxidation of benzyl alcohol with molecular oxygen. Characterizations of powder X-ray diffraction (XRD), Raman spectroscopy, X-ray absorption fine structure (XAFS), and hydrogen temperature-programmed reduction (H2-TPR) revealed that the co-impregnation of potassium to the Mn/γ-Al2O3 gave rise to the presence of α-MnO2 rather than β-MnO2, resulting in a stable catalyst with enhanced catalytic performance. We also demonstrated this alumina-supported K-Mn mixed oxide catalyst can effectively catalyze aerobic oxidation of various aromatic alcohols.

KW - Alumina

KW - Aromatic alcohol

KW - MnO

KW - Molecular oxygen

KW - Potassium

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U2 - 10.1016/j.molcata.2009.02.020

DO - 10.1016/j.molcata.2009.02.020

M3 - 文章

AN - SCOPUS:67349224414

SN - 1381-1169

VL - 306

SP - 48

EP - 53

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

IS - 1-2

ER -

Structure and catalytic properties of K-doped manganese oxide supported on alumina

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