Nanostructured platinum catalyst coating on diesel particulate filter with a low-cost electroless deposition approach

Zhou, Qiuhong; Zhong, Kunhua; Fu, Weiling; Huang, Qing; Wang, Zhongxin; Nie, Bei

doi:10.1016/j.cej.2015.01.131

Cited by 17 publications

(5 citation statements)

References 36 publications

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“…CDPF is one of the most widely used technologies in DPF passive regeneration. Compare with the additional energy and sophisticated control required for thermal oxidation, CDPF oxidizes captured PM in the range of 250–550°C by coating the catalyst on the cell surface (Zhou et al 2015 ) (Di Sarli et al 2016 ). Although the regeneration efficiency and filtration efficiency of CDPF at low temperature are not as good as those at high temperature, they can also be maintained in a good range.…”

Section: Diesel Particulate Filter Regenerationmentioning

confidence: 99%

“…In the past literature, the results had showed that the noble and base metals, rare earth elements, transition metals, and mixed oxides with perovskite and spinel structures had a positive catalytic effect on the oxidation of fumes (Sacco et al 2022 ). The oxides of Pt, Ce, Pd, Zr, La, Pr, Mn, Cu, Ag, Ca, Y, Al, K, Ti, and other materials had been used as candidate materials for catalysts for DPF regeneration in the laboratory (Chen et al 2022 ) (Zhou et al 2015 ) (Ura et al 2011 ) (Lee et al 2021a ) (Serve et al 2019 ).…”

Section: Diesel Particulate Filter Regenerationmentioning

confidence: 99%

See 1 more Smart Citation

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Zhang

Dong

Lan

et al. 2023

Environ Sci Pollut Res

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Diesel particulate filter (DPF) is considered as an effective method to control particulate matter (PM) emissions from diesel engines, which is included in the mandatory installation list by more and more national/regional laws and regulations, such as CHINA VI, Euro VI, and EPA Tier3. Due to the limited capacity of DPF to contain PM, the manufacturer introduced a method of treating deposited PM by oxidation, which is called regeneration. This paper comprehensively summarizes the most advanced regeneration technology, including filter structure, new catalyst formula, accurate soot prediction, safe and reliable regeneration strategy, uncontrolled regeneration and its control methods. In addition, due to the change of working conditions in the regeneration process, the additional emissions during regeneration are discussed in this paper. The DPF is not only the aftertreatment device but also can be combined with diesel oxidation catalyst (DOC), selective catalytic reduction (SCR) and exhaust recirculation (EGR). In addition, the impact of DPF modification on the original system of some old models has been reasonably discussed in order to achieve emission targets.

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Section: Diesel Particulate Filter Regenerationmentioning

confidence: 99%

Section: Diesel Particulate Filter Regenerationmentioning

confidence: 99%

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Zhang

Dong

Lan

et al. 2023

Environ Sci Pollut Res

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“…By using the hot chromic acid-sulfuric acid cleaning of plastic surface followed by activation with tin chloride and palladium chloride solutions, the conventional plating processes for metallization of polymer are commonly expensive and toxic [20,21]. Therefore, many latest studies [22][23][24][25] have been reported to develop low-cost and environmentally friendly methods for improvement of adhesion between metal coating and the substrate.…”

Section: Introductionmentioning

confidence: 99%

Layer by layer electroless deposition: An efficient route for preparing adhesion-enhanced metallic coatings on plastic surfaces

Chen

Zhang

Bessho

et al. 2016

Chemical Engineering Journal

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“…The dispersion of catalyst as nano-particles seems to be fundamental in determining a good quality of soot-catalyst contact. In agreement with this, Zhou et al [30] developed a low-cost electro-less coating approach that allowed in situ growth of well-dispersed nano-structured metal (Pt) crystals inside the DPF pores, thus resulting in a substrate highly active towards soot oxidation. The proposed method also allowed tuning of catalyst morphology by varying the starting reactant concentration and the length of deposition time.…”

Section: Sic Grainmentioning

confidence: 91%

The Issue of Soot-Catalyst Contact in Regeneration of Catalytic Diesel Particulate Filters: A Critical Review

Lisi¹,

Landi²,

Sarli³

2020

Catalysts

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Soot-catalyst contact represents the main critical issue for an effective regeneration of catalytic (i.e., catalyst-coated) diesel particulate filters (DPFs). Most of the literature reviews on this topic have mainly been focused on studies dealing with powdered soot-catalyst mixtures. Although the results obtained on powders surely provide significant indications, especially in terms of intrinsic activity of materials towards soot oxidation, they cannot be directly extended to DPFs due to completely different soot-catalyst contact conditions generated during filtration and subsequent regeneration. In this work, attention is devoted to catalytic DPFs and, more specifically, studies on both catalyst dispersion and soot distribution inside the filter are critically reviewed from the perspective of soot-catalyst contact optimization. The main conclusion drawn from the literature analysis is that, in order to fully exploit the potential of catalytic DPFs in soot abatement, both a widespread and homogeneous presence of catalyst in the macro-pores of the filter walls and a suitably low soot load are needed. Under optimal soot-catalyst contact conditions, the consequent decrease in the temperature required for soot oxidation to values within the temperature range of diesel exhausts suggests the passage to a continuous functioning mode for catalytic filters with simultaneous filtration and regeneration, thus overcoming the drawbacks of periodic regeneration performed in current applications.

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Nanostructured platinum catalyst coating on diesel particulate filter with a low-cost electroless deposition approach

Cited by 17 publications

References 36 publications

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Layer by layer electroless deposition: An efficient route for preparing adhesion-enhanced metallic coatings on plastic surfaces

The Issue of Soot-Catalyst Contact in Regeneration of Catalytic Diesel Particulate Filters: A Critical Review

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