Hydrogen-reduced Cu/ZnO composite as efficient reusable catalyst for diesel particulate matter oxidation

Corro, Grisel; Cebada, Surinam; Pal, U.; Fierro, José Luis García; Alvarado, Josefina

doi:10.1016/j.apcatb.2014.10.048

Cited by 23 publications

(21 citation statements)

References 84 publications

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“…Transition metal oxides such as MnO x [11], FeO x [12], CoO x [13] and CuO x [14] have been used as the main catalysts for soot oxidation because of their redox catalytic cycles. Most of the oxide catalysts provide enough activities for soot oxidation only at temperatures higher than 400 • C. However, in recent years, some researchers have focused on the development of catalysts to lower the catalytic oxidation temperature of the diesel soot below 300 • C [15,16].…”

Section: Introductionmentioning

confidence: 99%

Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Ranji‐Burachaloo

Masoomi‐Godarzi

Khodadadi

et al. 2016

Applied Catalysis B: Environmental

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Section: Introductionmentioning

confidence: 99%

Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Ranji‐Burachaloo

Masoomi‐Godarzi

Khodadadi

et al. 2016

Applied Catalysis B: Environmental

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“…Corro et al. also suggested that Cu + ions on the catalyst surface were the active species for soot combustion due to their favorable electronic configuration and the isoelectronic interactions between Cu + and adjacent B‐site metals at the catalyst interface [37] . The CuCo 2 O 4 catalyst shows the largest relative concentration of Cu + /(Cu + +Cu 2+ ).…”

Section: Resultsmentioning

confidence: 99%

“…Corro et al also suggested that Cu + ions on the catalyst surface were the active species for soot combustion due to their favorable electronic configuration and the isoelectronic interactions between Cu + and adjacent B-site metals at the catalyst interface. [37] The CuCo 2 O 4 catalyst shows the largest relative concentration of Cu + /(Cu + + Cu 2 + ). Previous work confirmed that abundant Cu + species on catalyst surface were accompanied by rich structural defects (oxygen vacancies) and better redox properties, which could facilitate soot combustion.…”

Section: Chemistryselectmentioning

confidence: 94%

Activity and Stability of Cu‐Based Spinel‐Type Complex Oxides for Diesel Soot Combustion

Zhang

Zhu

et al. 2021

ChemistrySelect

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A series of Cu‐based spinel‐type complex oxides (CuB2O4, B=Fe, Mn, Co and Cr) was synthesized via sol‐gel method for soot combustion. The soot combustion was accelerated in the presence of all prepared CuB2O4 catalysts compared to that without catalyst. The CuCo2O4 catalyst exhibited the best catalytic activity, with the soot combustion temperatures T10, T50 and T90 of 480 °C, 539 °C and 569 °C, respectively. XRD patterns showed that the catalysts were mainly in spinel phase. The H2‐TPR, XPS and O2‐TPD characterizations revealed that the interactions between cobalt and copper led to higher content of the Cu+ species, better redox properties and abundant adsorbed oxygen species than the other three catalysts, which contributed to soot combustion. In addition, the catalytic activity of the CuCo2O4 catalysts on soot combustion were facilitated in the presence of NO, while water vapor inhibited the catalytic activity. Besides, the cycle tests clarified that CuCo2O4 catalyst exhibited good stability.

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“…Copper based catalysts were also found to be a suitable alternative for precious metal catalysts owing to its high catalytic activity, nitrogen oxide reduction and hydrocarbon oxidation [46]. It was found that Copper based catalysts can be used as an efficient alternative catalyst for abatement of particulate matter at low temperatures even at 150 degree Celsius.…”

Section: Figure 1 Filtration Mechanism Of Dpfmentioning

confidence: 99%

Review on Post-Treatment Emission Control Technique by Application of Diesel Oxidation Catalysis and Diesel Particulate Filtration

Kurien¹

2019

Journal of Thermal Engineering

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The toxic nature of exhaust gases released by these engines has led to environmental concerns, affecting its sustainability. The exhaust emission from diesel engine includes carbon monoxide, nitrates, hydrocarbons and particulate matter. Soot particles contained in the particulate matter is also found to be carcinogenic in nature and also leads to various lung diseases. Diesel oxidation catalysis system involves oxidation of hydrocarbons, nitrates and soluble organic fraction. Diesel particulate filtration blocks the soot particles with the help of alternately plugged diesel particulate filter with porous walls. The regeneration of accumulated soot is one of the major challenges faced by automotive industries for effective implementation of diesel particulate filtration system. A detailed review on the challenges faced in the implementation of emission control techniques has been carried out in this study and it has been explored from the results of literature study that microwave based regeneration technique would be an effective technique. This paper provides a platform for understanding the working principle of post treatment emission control techniques and also on the role of regeneration in effective operation of Diesel Particulate Filter.

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Hydrogen-reduced Cu/ZnO composite as efficient reusable catalyst for diesel particulate matter oxidation

Cited by 23 publications

References 84 publications

Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Activity and Stability of Cu‐Based Spinel‐Type Complex Oxides for Diesel Soot Combustion

Review on Post-Treatment Emission Control Technique by Application of Diesel Oxidation Catalysis and Diesel Particulate Filtration

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