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Konin, G. A.; Il’ichev, A. N.; Матышак, В. А.; Khomenko, T. I.; Корчак, В. Н.; Садыков, В. А.; Доронин, В. П.; Bunina, R. V.; Alikina, G. M.; Kuznetsova, T. G.; Паукштис, E. A.; Фенелонов, В. Б.; Зайковский, В. И.; Ivanova, A. S.; Beloshapkin, Sergey; Rozovskii, A. Ya.; Tret’yakov, V. F.; Ross, J.R.H.; Breen, John

doi:10.1023/a:1016667822516

Cited by 30 publications

(24 citation statements)

References 4 publications

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“…For the case of propylene as reductant, for Zr PILC, very low conversions of NO into nitrogen were observed, and propylene was mainly consumed by the deep oxidation route ( figure 11). Here, performance of nanosized zirconia particles differs drastically from that of bulk zirconia samples, which are reasonably active and selective in propane and propylene NO x SCR in the high temperature range [4,11]. This difference appears to be due to the different structural properties of nanosized pillars resulting in much lower density of strong LAS (vide supra) responsible both for the hydrocarbons activation and stabilization of reactive nitrate surface species.…”

Section: Zr Pilcmentioning

confidence: 90%

“…Zr PILCs were synthesized using a Ca-or Na-montmorillonite clay from the Kazakhstan deposit containing 66 wt.% SiO 2 and 25 wt.% Al 2 O 3 following earlier described procedures [4] and pillaring solutions of (4) series.…”

Section: Methodsmentioning

confidence: 99%

“…FTIRS data of adsorbed CO and hydroxyl groups [4,5] indicate that on the surface of Zr PILCs evacuated at 400°C, the number of coordinatively unsaturated Zr cations is much lower as compared with that for bulk highly dispersed zirconia samples [11]. Moreover, in the hydroxyls stretching regions, only bands at~3650-3700 cm )1 corresponding to bridging hydroxyls are present.…”

Section: Clay Structure and Texturementioning

confidence: 99%

“…Clays pillared by nanosize zirconia particles (Zr PILC) are promising supports and catalysts for different petrochemical processes [1] and selective catalytic reduction of NO x by hydrocarbons in excess of oxygen [2][3][4][5]. Their performance strongly depends upon the size, shape and structure of nanosized zirconia pillars propping the alumosilicate layers, which are in turn determined by the properties of zirconium hydroxy polycations in pillaring solutions.…”

Section: Introductionmentioning

confidence: 99%

“…(a) Temperature dependence of NO x (1,3) and propene(2,4) conversion for the initial (1,2) and Pt-supported (3,4) Ca-Zr pillared clay.…”

mentioning

confidence: 99%

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Molecular design and characterization of catalysts for NO x selective reduction by hydrocarbons in the oxygen excess based upon ultramicroporous zirconia pillared clays

et al. 2005

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Approaches to design of zirconia pillared clays via control of the properties of pillaring species in solutions were elaborated. Structural features of pillars and Pt + Cu active components fixed at these nanoparticles were shown to determine catalytic properties of pillared clays in NO x selective reduction by hydrocarbons in the oxygen excess.KEY WORDS: zirconia pillared clay; synthesis; structure of zirconia nanoparticles and texture of clays; copper and Pt-loaded catalysts; reducibility and adsorption properties; catalysis of NO x HC SCR; performance and reaction mechanism

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Section: Zr Pilcmentioning

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Section: Clay Structure and Texturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…(a) Temperature dependence of NO x (1,3) and propene(2,4) conversion for the initial (1,2) and Pt-supported (3,4) Ca-Zr pillared clay.…”

mentioning

confidence: 99%

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Molecular design and characterization of catalysts for NO x selective reduction by hydrocarbons in the oxygen excess based upon ultramicroporous zirconia pillared clays

et al. 2005

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Pillared Clays

Poncelet¹,

Fripiat²

2008

Handbook of Heterogeneous Catalysis

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The sections in this article are Introduction Historical Overview Which Clays or Smectites can be Pillared? Al ‐Pillared Vermiculites and Phlogopite Micas Reviews Pillaring Mechanisms Basic Pillaring Mechanism: Exchange Precipitation New Pillaring Mechanism: Template Pillars Homo‐Atomic Pillars A Hydroxyaluminum Polymer B Gallium and Mixed Gallium Aluminum Hydroxypolymers C Zirconia Hydroxypolymers D Titania Pillars E Silica and Silicate Pillars F Transition Metal Oxide Pillars Heteroatomic Pillars Mixed Al  Fe Pillars Miscellaneous Pillared Clays Preliminary Remarks Main Physical Characteristics Chemical Properties Chemical Modifications or Functionalization of the Pillaring Species Catalytic Properties A Brief Summary of Previous Studies An Overview of Catalytic Reactions Investigated during the Past Decade Conclusions Acknowledgments

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Clay Materials for Selective Catalytic Reduction of NO x

Belver

2010

Pillared Clays and Related Catalysts

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Cited by 30 publications

References 4 publications

Molecular design and characterization of catalysts for NO x selective reduction by hydrocarbons in the oxygen excess based upon ultramicroporous zirconia pillared clays

Molecular design and characterization of catalysts for NO x selective reduction by hydrocarbons in the oxygen excess based upon ultramicroporous zirconia pillared clays

Pillared Clays

Clay Materials for Selective Catalytic Reduction of NO x

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