Journal ArticleDOI
Simultaneous soot combustion and nitrogen oxides storage on potassium-promoted hydrotalcite-based CoMgAlO catalysts.
Reads0
Chats0
TLDR
It is revealed by H2-TPR that the addition of K increases the amount of active Co sites and the mobility of bulk lattice oxygen due to the low melting point of K-containing compounds, the low valence of K+ and the strong interaction between K and Mg(Al).About:
This article is published in Journal of Hazardous Materials.The article was published on 2009-01-15. It has received 59 citations till now. The article focuses on the topics: Catalysis & Hydrotalcite.read more
Citations
More filters
Journal ArticleDOI
A Highly Effective Catalyst of Sm-MnOx for the NH3-SCR of NOx at Low Temperature: Promotional Role of Sm and Its Catalytic Performance
TL;DR: In this paper, the effect of Sm on the physicochemical properties of the Sm-MnOx catalyst were investigated by XRD, low-temperature N2 adsorption, XPS, and FE-SEM techniques.
Journal ArticleDOI
A review on the catalytic combustion of soot in Diesel particulate filters for automotive applications: From powder catalysts to structured reactors
TL;DR: A critical review of recent advances in modeling approaches has also been presented in this article, where the authors highlight the main factors that affect the activity of powder catalysts and the kinetic soot oxidation models have been examined.
Journal ArticleDOI
Spinel structured CoaMnbOx mixed oxide catalyst for the selective catalytic reduction of NOx with NH3
TL;DR: In this paper, a spinel-structured Co 7 Mn 3 O 4 4.5 phase and higher surface area was used for the selective catalytic reduction (SCR) of NO x with ammonia.
Journal ArticleDOI
Effects of adsorbed and gaseous NOx species on catalytic oxidation of diesel soot with MnOx–CeO2 mixed oxides
TL;DR: In this paper, the structural, redox and adsorption properties of the individual and mixed oxides were investigated by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), CO temperature-programmed reduction (TPR), NO temperatureprogrammed oxidation (TPO), NOx temperature programmed desorption (TPD), and in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) tests were performed with the soot-catalyst mixture under loose contact conditions to evaluate the catalytic
Journal ArticleDOI
Highly enhanced soot oxidation activity over 3DOM Co3O4-CeO2 catalysts by synergistic promoting effect.
TL;DR: Three-dimensionally ordered macroporous Co3O4-CeO2 catalysts with controllable Co/Ce molar ratios synthesized by colloidal crystal template method exhibited highly enhanced soot oxidation activity and demonstrated strong stability because of the surface enrichment of Ce species improving the thermal stability and the robust 3DOM framework inhibiting the structural collapse, showing their potential applications under practical conditions.
References
More filters
Journal ArticleDOI
Hydrotalcite-type anionic clays: Preparation, properties and applications.
Journal ArticleDOI
Identification of Neutral and Charged N x O y Surface Species by IR Spectroscopy
TL;DR: In this article, the infrared spectral performance of N x O y species observed on oxide surfaces [N2O, NO−, NO, (NO)2, N2O3, NO+, NO2 − (different nitro and nitrito anions), NO2, n2O4, N 2O5, NO2 and NO3 − (bridged, bidentate, and monodentate nitrates)] is considered.
Journal ArticleDOI
Overview of the Fundamental Reactions and Degradation Mechanisms of NOx Storage/Reduction Catalysts
TL;DR: In this article, the authors describe the work carried out in characterizing, developing, and understanding this catalyst technology for application in mobile exhaust gas aftertreatment, which includes five general steps involved in NOx reduction to N2 on NSR catalysts; NO oxidation, NO2 and NO sorption leading to nitrite and nitrate species.
Journal ArticleDOI
Preparation and catalytic properties of cationic and anionic clays
TL;DR: In this paper, the structure, main properties and preparation methods of cationic and anionic clays are reviewed in light of the versatility and potential of these materials, which may be useful tools in the move towards establishing environmentally friendly technologies.
Journal ArticleDOI
Temperature-programmed reduction of CoOAI2O3 catalysts
P. Arnoldy,Jacob A. Moulijn +1 more
TL;DR: In this article, it was shown that temperature-programmed reduction (TPR) is a sensitive technique for the characterization of Co and Co-Aloxidic phases in CoOAl2O3 catalysts.