Silicon carbide-based membranes with high soot particle filtration efficiency, durability and catalytic activity for CO/HC oxidation and soot combustion

Sandra, Fabien; Ballestero, Anthony; Nguyen, Van Lam; Tsampas, Mihalis N.; Vernoux, P.; Bălan, Corneliu; Iwamoto, Yuji; Demirci, Umit B.; Miele, Philippe; Bernard, Samuel

doi:10.1016/j.memsci.2015.12.015

Cited by 56 publications

(33 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this first section, we discuss an accessible synthesis procedure for the generation of a series of boron‐modified AHPCS through the reaction between a commercially available AHPCS as a SiC precursor and BDMS as a boron source. The latter is well reported to act as a hydroboration agent for vinyl‐containing dichlorosilanes/polyorganosilazanes and AHPCS, Here, the synthesis involves the design of polymers with controlled Si/B ratios to study in detail the chemical interplay as a guiding parameter of the polymer synthesis step.…”

Section: Resultsmentioning

confidence: 99%

“…These precursors display different controlled Si/B molar ratios ranging from 200 ( PBCS 200 ) to 30 ( PBCS 30 ) (See Table S1, Supporting Information), varying with the quantity of BDMS added to the AHPCS solution. The PBCS 30 sample was synthesized by using a quantity of BDMS corresponding to complete hydroboration of the allyl groups present in the AHPCS, according to the chemical formula generally admitted for AHPCS, that is, [(Si(CH 2 =CHCH 2 )HCH 2 ) 0.1 (SiH 2 CH 2 ) 0.9 ] n …”

Section: Resultsmentioning

confidence: 99%

“…It is a liquid, and displays a higher ceramic yield than PCS with a slight increase in the C/Si ratio in the resultant “SiC” product. This precursor is commercially available from the Starfire Systems company and has been investigated in recent works for the production of SiC‐derived objects . Because of the presence of allyl groups, it can be chemically modified to integrate additional elements such as boron …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Molecular‐Level Processing of Si‐(B)‐C Materials with Tailored Nano/Microstructures

Schmidt

Durif

Acosta

et al. 2017

Chemistry A European J

Self Cite

View full text Add to dashboard Cite

The design of Si-(B)-C materials is investigated, with detailed insight into the precursor chemistry and processing, the precursor-to-ceramic transformation, and the ceramic microstructural evolution at high temperatures. In the early stage of the process, the reaction between allylhydridopolycarbosilane (AHPCS) and borane dimethyl sulfide is achieved. This is investigated in detail through solid-state NMR and FTIR spectroscopy and elemental analyses for Si/B ratios ranging from 200 to 30. Boron-based bridges linking AHPCS monomeric fragments act as crosslinking units, extending the processability range of AHPCS and suppressing the distillation of oligomeric fragments during the low-temperature pyrolysis regime. Polymers with low boron contents display appropriate requirements for facile processing in solution, leading to the design of monoliths with hierarchical porosity, significant pore volume, and high specific surface area after pyrolysis. Polymers with high boron contents are more appropriate for the preparation of dense ceramics through direct solid shaping and pyrolysis. We provide a comprehensive study of the thermal decomposition mechanisms, and a subsequent detailed study of the high-temperature behavior of the ceramics produced at 1000 °C. The nanostructure and microstructure of the final SiC-based ceramics are intimately linked to the boron content of the polymers. B C/C/SiC nanocomposites can be obtained from the polymer with the highest boron content.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Molecular‐Level Processing of Si‐(B)‐C Materials with Tailored Nano/Microstructures

Schmidt

Durif

Acosta

et al. 2017

Chemistry A European J

Self Cite

View full text Add to dashboard Cite

show abstract

“…Paper [32] examines the effect of temperature of EG on the process of standard passive regeneration of the first kind by the thermocatalytic method of DPF, and research [38] focuses on the specifics of operation of sensors of the system of electronic control over this process. The influence of the temperature of EG on the course of processes of chemical transformation of polycyclic aromatic hydrocarbons in EG for three types of diesel fuels of biological origin are given in paper [34], on other processes -in papers [39,42].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…It should also be noted that nanomaterials will gradually begin to occupy the niche of materials for DPF and unburned hydrocarbons, catalytic for oxidizers, in particular in the form of membranes from silicium carbide, as shown in paper [34].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Assessment of improvement of ecological safety of power plants by arranging the system of pollutant neutralization

Vambol

Kondratenko

et al. 2017

EEJET

View full text Add to dashboard Cite

Readily processed multifunctional SiC catalytic filter for industrial emissions control

et al. 2022

View full text Add to dashboard Cite

One step fabrication of SiC catalytic filter is currently limited by the mismatched calcination temperature between SiC filter (>1700 C) and the catalysts (<800 C), and the difficulty in the chemical immobilization of catalysts. Here, a SrTi 1Àx Co x O 3 -SiC (STC-SiC) catalytic filter was directly fabricated from raw SiC grains and STC precursor oxides (SrCO 3 , TiO 2 , and Co 3 O 4 ) via a single-step reactive thermal processing (SRTP) approach, which significantly reduced energy consumption and sintering time over 50%. Acid etching enables the active TiO 2 and Co 3 O 4 nanoparticles spontaneously formed on STC catalysts in STC-SiC catalytic filter (STC-SiC-A), which induces the generation of oxygen vacancies and facilitates the adsorption and activation of O 2 and NO. The STC-SiC-A catalytic filter exhibits highly competitive NO oxidation of 60% and complete dust interception (100%) at 360 C. This work demonstrates an efficient and rapid processing technique of SiC based catalytic filters, which can also be implemented on other ceramic-based catalytic filters.

show abstract

Silicon carbide-based membranes with high soot particle filtration efficiency, durability and catalytic activity for CO/HC oxidation and soot combustion

Cited by 56 publications

References 66 publications

Molecular‐Level Processing of Si‐(B)‐C Materials with Tailored Nano/Microstructures

Molecular‐Level Processing of Si‐(B)‐C Materials with Tailored Nano/Microstructures

Assessment of improvement of ecological safety of power plants by arranging the system of pollutant neutralization

Readily processed multifunctional SiC catalytic filter for industrial emissions control

Contact Info

Product

Resources

About