Cu-Mn-Ce mixed oxides catalysts for soot oxidation and their mechanistic chemistry

Ali, Shafqat1; Wu, Xiaodong1; Zuhra, Zareen2; Ma, Yue1; Abbas, Yasir3; Jin, Baofang1; Ran, Rui1; Weng, Duan1

2020

10.1016/j.apsusc.2020.145602

APPLIED SURFACE SCIENCE   影响因子和分区

0169-4332

1873-5584

A series of flower-like CuxMnyCez mixed oxides catalysts for soot removal were prepared via a facile co-precipitation approach followed by calcination. The structural and surface properties of these catalysts were investigated by powder X-ray diffraction, N2 physisorption, transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption and NO temperature-programmed oxidation. Superior soot oxidation performance was obtained over these ternary mixed oxides catalysts and the corresponding mechanism was explored. In particular, the Cu1Mn1Ce1 catalyst showed a remarkable improvement in soot oxidation activity in both NO + O2 and O2 atmospheres. The reusability and durability of these catalysts were assessed, and these materials showed high soot oxidation activity after the hydrothermal stability test.
© 2020 Elsevier B.V.

Mixed Metal Oxides Soot oxidation Oxygen vacancy Durability Mechanism

EI ; SCI

英语

其他

[2017YFC0211102] ; [2016YFE0126600]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter

WOS:000522731700025

Elsevier B.V.

20200708171694

Catalysts ; Cerium alloys ; Cerium oxide ; Copper alloys ; Copper compounds ; Durability ; Dust ; High resolution transmission electron microscopy ; Mechanisms ; Oxidation ; Oxygen vacancies ; Reusability ; Scanning electron microscopy ; Soot ; Temperature programmed desorption ; Ternary alloys ; X ray photoelectron spectroscopy

Air Pollution Sources:451.1 ; Manganese and Alloys:543.2 ; Copper Alloys:544.2 ; Rare Earth Metals:547.2 ; Mechanisms:601.3 ; Optical Devices and Systems:741.3 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Crystalline Solids:933.1

MATERIALS SCIENCE

EV Compendex

1.The Key Laboratory of Advanced Materials of the Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing; 100084, China
2.School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen; 518055, China
3.State Key Laboratory of Chemical Resource Engineering, Institute of Science, Beijing University of Chemical Technology, Beijing; 100029, China

Ali, Shafqat,Wu, Xiaodong,Zuhra, Zareen,et al. Cu-Mn-Ce mixed oxides catalysts for soot oxidation and their mechanistic chemistry[J]. APPLIED SURFACE SCIENCE,2020,512.

Ali, Shafqat.,Wu, Xiaodong.,Zuhra, Zareen.,Ma, Yue.,Abbas, Yasir.,...&Weng, Duan.(2020).Cu-Mn-Ce mixed oxides catalysts for soot oxidation and their mechanistic chemistry.APPLIED SURFACE SCIENCE,512.

Ali, Shafqat,et al."Cu-Mn-Ce mixed oxides catalysts for soot oxidation and their mechanistic chemistry".APPLIED SURFACE SCIENCE 512(2020).