Promotional Effects of Sm/Ce/La Doping on Soot Oxidation over MnCo2O4 Spinel Catalysts

2021 ◽  
Author(s):  
Ke Xu ◽  
Yan Zhang ◽  
Wenpo Shan ◽  
Hong He
Keyword(s):  
Soot Oxidation ◽  
La Doping ◽  
Spinel Catalysts

Roles of Surface-Active Oxygen Species on 3DOM Cobalt-Based Spinel Catalysts MxCo3–xO4 (M = Zn and Ni) for NOx-Assisted Soot Oxidation

ACS Catalysis ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 7548-7567 ◽  
Author(s):  
Minjie Zhao ◽  
Jianlin Deng ◽  
Jian Liu ◽  
Yongheng Li ◽  
Jixing Liu ◽  
...  
Keyword(s):  
Active Oxygen Species ◽  
Soot Oxidation ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Surface Active ◽  
Spinel Catalysts

scholarly journals Oxidation of soot promoted by Fe-based spinel catalysts

2021 ◽  
Author(s):  
Haoming Chen ◽  
Tianle Li ◽  
Zhiming Xu ◽  
Wenju Wang ◽  
Haihou Wang
Keyword(s):  
Oxygen Vacancies ◽  
Catalytic Effect ◽  
Sol Gel ◽  
Soot Oxidation ◽  
Particulate Filter ◽  
Exhaust Gas ◽  
Power Performance ◽  
Average Grain Size ◽  
Spinel Catalysts ◽  
Catalyzed Diesel Particulate Filter

Abstract Diesel engine has attracted much attention because of its good power performance, fuel economy, reliability and durability, but the exhaust gas containing soot has a great impact on the environment and human health. Catalyzed diesel particulate filter (CDPF) that reduces the activation energy of soot oxidation and combustion by catalysts are used to eliminate soot. In this paper, MFe2O4 spinel (M=Cu, Ni and Co) was synthesized by sol-gel method to catalyze the combustion of soot. The Characterization results of MFe2O4 showed that CuFe2O4 possessed the smallest average grain size (65.6nm) and the best redox performance. The activity test of the catalyst shows that the activity order of the catalyst is CuFe2O4 (330 °C > CoFe2O4 (411 °C > NiFe2O4 (464 °C). DFT results showed that carbon is more easily adsorbed on the oxygen-terminal surface of CuFe2O4 and reacts with oxygen vacancies, resulting in the promotion of soot oxidation by the diffusion of oxygen from the inside to the surface. It also proves that CuFe2O4 has the best catalytic effect on soot.

Evolution of spatial spin-modulated structure with La doping in Bi1-yLayFeO3 multiferroics

2021 ◽  
Vol 517 ◽  
pp. 167341 ◽  
Author(s):  
V.S. Pokatilov ◽  
A.O. Makarova ◽  
A.A. Gippius ◽  
A.V. Tkachev ◽  
S.V. Zhurenko ◽  
...  
Keyword(s):  
Modulated Structure ◽  
La Doping

Ceria-based catalytic coatings on biomorphic silicon carbide: A system for soot oxidation with enhanced properties

2021 ◽  
Vol 415 ◽  
pp. 128959
Author(s):  
M. Pilar Orihuela ◽  
Paolo Miceli ◽  
Joaquín Ramírez-Rico ◽  
Debora Fino ◽  
Ricardo Chacartegui
Keyword(s):  
Silicon Carbide ◽  
Soot Oxidation ◽  
Enhanced Properties

Cesium as a dual function promoter in Co/Ce-Sn catalyst for soot oxidation

2021 ◽  
Vol 285 ◽  
pp. 119850
Author(s):  
Meng Wang ◽  
Yan Zhang ◽  
Yunbo Yu ◽  
Wenpo Shan ◽  
Hong He
Keyword(s):  
Soot Oxidation ◽  
Dual Function

Effects of La incorporation in catalytic activity of Ag/La-CeO2 catalysts for soot oxidation

2021 ◽  
pp. 125523
Author(s):  
Jaesung Lee ◽  
Min Woo Lee ◽  
Min June Kim ◽  
Jae Hwan Lee ◽  
Eun Jun Lee ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Soot Oxidation

Catalytic Soot Oxidation Over Ce- and Cu-Doped Hydrotalcites-Derived Mesoporous Mixed Oxides

2014 ◽  
Vol 14 (9) ◽  
pp. 7087-7096 ◽  
Author(s):  
Zhongpeng Wang ◽  
Liguo Wang ◽  
Fang He ◽  
Zheng Jiang ◽  
Tiancun Xiao ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
Soot Oxidation ◽  
Catalytic Soot Oxidation

scholarly journals SmMn2O5 catalysts modified with silver for soot oxidation: Dispersion of silver and distortion of mullite

2020 ◽  
Vol 273 ◽  
pp. 119058 ◽  
Author(s):  
Baofang Jin ◽  
Baohuai Zhao ◽  
Shuang Liu ◽  
Zhenguo Li ◽  
Kaixiang Li ◽  
...  
Keyword(s):  
Soot Oxidation
Sign in / Sign up

Export Citation Format

Share Document