Catalytic Combustion of Methane over MnOx/ZrO2-Al2O3 Catalysts

摘要/Abstract

摘要： Abstract: MnOx/Al2O3 and MnOx/ZrO2-Al2O3 catalysts were prepared by incipient wetness impregnation of Mn(CH3COO)2 on the corresponding supports, followed by the characterization using X-ray diraction (XRD), temperature programmed reduction (TPR) and BET surface area techniques. The result shows the BET surface area of ZrO2-Al2O3 is lower than that of Al2O3 due to the loading of ZrO2. However the resulted MnOx/ZrO2-Al2O3 catalyst exhibits higher activity for methane combustion than MnOx/Al2O3, because the addition of ZrO2 onto Al2O3 is benecial for the dispersion of Mn species and the improvement of the lattice oxygen activity in MnOx, subsequently the activation of methane during combustion. The optimum loading of Zr in MnOx/ZrO2-Al2O3 is in the range of 5%{10% correlated with the calcination temperatures of catalyst supports.

关键词: MnOx/Al2O3, MnOx/ZrO2-Al2O3, X-ray diraction, temperature programmed reduction, catalytic combustion, methane

Abstract: Abstract: MnOx/Al2O3 and MnOx/ZrO2-Al2O3 catalysts were prepared by incipient wetness impregnation of Mn(CH3COO)2 on the corresponding supports, followed by the characterization using X-ray diraction (XRD), temperature programmed reduction (TPR) and BET surface area techniques. The result shows the BET surface area of ZrO2-Al2O3 is lower than that of Al2O3 due to the loading of ZrO2. However the resulted MnOx/ZrO2-Al2O3 catalyst exhibits higher activity for methane combustion than MnOx/Al2O3, because the addition of ZrO2 onto Al2O3 is benecial for the dispersion of Mn species and the improvement of the lattice oxygen activity in MnOx, subsequently the activation of methane during combustion. The optimum loading of Zr in MnOx/ZrO2-Al2O3 is in the range of 5%{10% correlated with the calcination temperatures of catalyst supports.

Key words: MnOx/Al2O3, MnOx/ZrO2-Al2O3, X-ray diraction, temperature programmed reduction, catalytic combustion, methane

Xiufeng Xu;Yanfei Pan;Yanxia Liu;Zhanghuai Suo;Shixue Qi;Lidun An. Catalytic Combustion of Methane over MnOx/ZrO2-Al2O3 Catalysts[J]. 能源化学(英文), 2003, 12 (4): 228-232.

Xiufeng Xu;Yanfei Pan;Yanxia Liu;Zhanghuai Suo;Shixue Qi;Lidun An. Catalytic Combustion of Methane over MnOx/ZrO2-Al2O3 Catalysts[J]. Journal of Energy Chemistry, 2003, 12 (4): 228-232.

×
扫码分享

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.jenergychem.com/CN/

https://www.jenergychem.com/CN/Y2003/V12 /I4/228

[1]	A.Emamdoust, V.La Parola, G.Pantaleo, M.L.Testa, S.Farjami Shayesteh, A.M.Venezia. Partial oxidation of methane over SiO₂ supported Ni and NiCe catalysts[J]. 能源化学(英文版), 2020, 47(8): 1-9.
[2]	Srirat Chuayboon, Stéphane Abanades, Sylvain Rodat. Solar chemical looping reforming of methane combined with isothermal H₂O/CO₂ splitting using ceria oxygen carrier for syngas production[J]. 能源化学(英文版), 2020, 41(2): 60-72.
[3]	Yujin Sim, Jihoon Yoo, Jeong-Myeong Ha, Ji Chul Jung. Oxidative coupling of methane over LaAlO₃ perovskite catalysts prepared by a co-precipitation method: Effect of co-precipitation pH value[J]. 能源化学(英文), 2019, 28(8): 1-8.
[4]	Vaidheeshwar Ramasubramanian, Hema Ramsurn, Geoffrey L. Price. Methane dehydroaromatization-A study on hydrogen use for catalyst reduction, role of molybdenum, the nature of catalyst support and significance of Bronsted acid sites[J]. 能源化学(英文), 2019, 28(7): 20-32.
[5]	Jintao Sun, Qi Chen. Kinetic roles of vibrational excitation in RF plasma assisted methane pyrolysis[J]. 能源化学(英文版), 2019, 39(12): 188-197.
[6]	Fen Wang, Jing-Cai Zhang, Wei-Zhen Li, Bing-Hui Chen. Coke-resistant Au-Ni/MgAl₂O₄ catalyst for direct methanation of syngas[J]. 能源化学(英文版), 2019, 39(12): 198-207.
[7]	Hong Chang, Huili Chen, Guangming Yang, Wei Zhou, Jianping Bai, Sidian Li, Zongping Shao. Enhanced coking resistance of a Ni cermet anode by a chromates protective layer[J]. 能源化学(英文版), 2019, 37(10): 117-125.
[8]	Yaqi Li, Pengjian Zuo, Ruinan Li, Mengxue He, Yulin Ma, Yingxin Shi, Xinqun Cheng, Chunyu Du, Geping Yin. Electrochemically-driven interphase conditioning of magnesium electrode for magnesium sulfur batteries[J]. 能源化学(英文版), 2019, 37(10): 215-219.
[9]	Shunji Xie, Shengqi Lin, Qinghong Zhang, Zhongqun Tian, Ye Wang. Selective electrocatalytic conversion of methane to fuels and chemicals[J]. 能源化学(英文), 2018, 27(6): 1629-1636.
[10]	Seyedeh Molood Masoom Nataj, Seyed Mehdi Alavi, Golshan Mazloom. Modeling and optimization of methane dry reforming over Ni-Cu/Al₂O₃ catalyst using Box-Behnken design[J]. 能源化学(英文), 2018, 27(5): 1475-1488.
[11]	Yixuan Dou, Yijun Pang, Lingli Gu, Yifan Ding, Wu Jiang, Xinzhen Feng, Weijie Ji, Chak-Tong Au. Core-shell structured Ru-Ni@SiO₂: Active for partial oxidation of methane with tunable H₂/CO ratio[J]. 能源化学(英文), 2018, 27(3): 883-889.
[12]	Alejandra Cruz-Hernández, J. Arturo Mendoza-Nieto, Heriberto Pfeiffer. NiO-CaO materials as promising catalysts for hydrogen production through carbon dioxide capture and subsequent dry methane reforming[J]. 能源化学(英文), 2017, 26(5): 942-947.
[13]	Francesca Micheli, Manuela Sciarra, Claire Courson, Katia Gallucci. Catalytic steam methane reforming enhanced by CO₂ capture on CaO based bi-functional compounds[J]. 能源化学(英文), 2017, 26(5): 1014-1025.
[14]	Shuanshi Fan, Xi Wang, Yanhong Wang, Xuemei Lang. Recovering methane from quartz sand-bearing hydrate with gaseous CO₂[J]. 能源化学(英文), 2017, 26(4): 655-659.
[15]	Martin Dilla, Anna Pougin, Jennifer Strunk. Evaluation of the plasmonic effect of Au and Ag on Ti-based photocatalysts in the reduction of CO₂ to CH₄[J]. 能源化学(英文), 2017, 26(2): 277-283.