title: Preparation of Pd-based metal monolithic catalysts and a study of their performance in the catalytic combustion of methane.
abstract: A series of Pd/SBA-15/Al2O3/FeCrAl and Pd/5 wt% Ce(1-x)Zr(x)O2/SBA-15/Al2O3/FeCrAl (x = 0-1) metal monolithic catalysts were prepared and characterized by various techniques. The catalytic activity and the stability of the catalysts for methane combustion were evaluated. All the catalysts retain the SBA-15 mesoporous structure, with PdO being confined in its channels. The results show that the addition of Ce(1-x)Zr(x)O2 as promoters can improve the activity and stability of the catalysts. The stabilities of the metal monolithic catalysts are much better than those of Pd/ SBA-15 particle catalysts. The catalyst with ZrO2 as promoter exhibits the best activity and stability (T90= 395 degrees C), and the conversion of methane remains constant during the 700 h test.
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, China.
authors.forename: Fengxiang
authors.initials: F
authors.lastname: Yin
authors.forename: Shengfu
authors.initials: S
authors.lastname: Ji
authors.forename: Pingyi
authors.initials: P
authors.lastname: Wu
authors.forename: Fuzhen
authors.initials: F
authors.lastname: Zhao
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.forename: Chengyue
authors.initials: C
authors.lastname: Li
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D002384:Catalysis; D008697:Methane / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D053838:Scattering, Small Angle; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: C509969:SBA-15; D010165:Palladium; D012822:Silicon Dioxide; D000537:Aluminum Oxide; D008697:Methane