Effect of SO2 on CO and C3H6 oxidation over CeO2 and Ce0.75Zr0.25O2

Deshmukh, Subodh

doi:10.1016/s0926-3373(03)00128-0

Cited by 53 publications

(27 citation statements)

References 31 publications

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“…compared the two different kinds of 1-D nanomaterials to exhibit CO oxidation, where they derived that CeO 2 single/multiwall hollow microspheres may provide CO total conversion at 230 °C and for bulk CeO 2 at 500 °C [62]. Hollow microspheres afford more available oxygen and oxygen deficiency for CO oxidation [48,62,66]. In addition, high catalytic activity on CO oxidation obtained for CeO 2 single/multiwall hollow microspheres was consistent with similar activity at 240 °C for T 100 in the second and the third runs, which revealed its excellent thermal stability and recycling performance [62].…”

Section: Applications Of Ceria Nanostructure Materialsmentioning

confidence: 99%

“…According to TEM analyses, they demonstrated that the hollow structure does not collapse at high temperature (300 °C) and the catalytic operation was conducted after the reactor cooled down to room temperature, which demonstrated its excellent stability and recycling performance [66,68]. On the other hand, the overall catalytic activity and the BET specific surface area are affected by the preparation method of the catalyst [5,53].…”

Section: Applications Of Ceria Nanostructure Materialsmentioning

confidence: 99%

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Synthesis, Characterization, and Application of 1-D Cerium Oxide Nanomaterials: A Review

Lin

Chowdhury

2010

IJMS

145

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The present work provides a comprehensive overview of the recent progress of research work toward developing new one dimensional (1-D) ceria (CeO2) nanomaterials. The review has been classified into three parts: the preparation procedures with identification of the existing different dimensional ceria nanomaterials, the formation mechanisms, and an analysis of their applications. From literature survey, it is inaugurated that the fundamental structures of the ceria nanomaterials constructively dominate their properties and applications. In addition, this work will also provide a perspective on the future technical trends for the development of different dimensional CeO2 nanomaterials.

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Section: Applications Of Ceria Nanostructure Materialsmentioning

confidence: 99%

Section: Applications Of Ceria Nanostructure Materialsmentioning

confidence: 99%

Synthesis, Characterization, and Application of 1-D Cerium Oxide Nanomaterials: A Review

Lin

Chowdhury

2010

IJMS

145

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“…Catalyst A was mainly composed of the two noble metals totally taking a fraction 0.40% of weight in the three-way catalyst (TWC) [21,22]. Pd and Rh took 0.25% and 0.15%, respectively.…”

Section: Preparation Of Catalystsmentioning

confidence: 99%

Synthesis and Characterization of Nanometer Ce_0.75Zr_0.25O₂Powders by Solid-State Chemical Reaction Method

Zheng

Huang

et al. 2011

Journal of Nanomaterials

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The nanostructure Ce0.75Zr0.25O2powders have been successfully synthesized by using the mechanically activated solid-state chemical reaction method for the first time, with Ce2(CO)3, ZrOCl2⋅8H2O, and H2C2O4⋅2H2O as raw materials. The structure and morphology of Ce0.75Zr0.25O2powders were characterized to be in the single cubic phase and spherical shape via X-ray powder diffraction, transmission electron microscopy, X-ray Photoelectron Spectrometer, and BET surface area testing technique. The average size of particles was measured to be less than 20 nm, and the specific surface area was 85.4 m2/g. The TG-DTA investigation was used to reveal the possibly chemical reaction mechanism during the synthesis process. The activity of Ce0.75Zr0.25O2oxide solution in three-way catalysts was also valued in this work.

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“…Meanwhile, controlled synthesized of nanostructured CeO 2 -based catalysts and their catalytic performance in diesel soot oxidation are lucubrated [19,20]. However, CeO 2 -based catalysts are easily poisoned by SO 2 [21][22][23][24]. And SO 2 is a subsistent in the diesel exhaust, since sulfur is present in almost all commercial diesel fuels [25][26][27], sulfur in fuels would be oxidized to SO 2 and then emitted from diesel engines [28,29].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Sulfur-Resistant TiO2-CeO2 Composite and Its Catalytic Performance in the Oxidation of a Soluble Organic Fraction from Diesel Exhaust

et al. 2018

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Sulfur poisoning is one of the most important factors deteriorating the purification efficiency of diesel exhaust after-treatment system, thus improving the sulfur resistibility of catalysts is imperative. Herein, ceria oxygen storage material was introduced into a sulfur-resistant titania by a co-precipitation method, and the sulfur resistibility and catalytic activity of prepared TiO 2 -CeO 2 composite in the oxidation of diesel soluble organic fraction (SOF) were studied. Catalytic performance testing results show that the CeO 2 modification significantly improves the catalytic SOF purification efficiency of TiO 2 -CeO 2 catalyst. SO 2 uptake and energy-dispersive X-ray (EDX) results suggest that the ceria doping does not debase the excellent sulfur resistibility of bare TiO 2 , the prepared TiO 2 -CeO 2 catalyst exhibits obviously better sulfur resistibility than the CeO 2 and commercial CeO 2 -ZrO 2 -Al 2 O 3 . X-ray powder diffraction (XRD) and Raman spectra indicate that cerium ions can enter into the TiO 2 lattice and not form complete CeO 2 crystals. X-ray photoelectron spectroscopy (XPS), H 2 -temperature programmed reduction (H 2 -TPR) and oxygen storage capacity (OSC) testing results imply that the addition of CeO 2 in TiO 2 -CeO 2 catalyst can significantly enhance the surface oxygen concentration and oxygen storage capacity of TiO 2 -CeO 2 .

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Effect of SO2 on CO and C3H6 oxidation over CeO2 and Ce0.75Zr0.25O2

Cited by 53 publications

References 31 publications

Synthesis, Characterization, and Application of 1-D Cerium Oxide Nanomaterials: A Review

Synthesis, Characterization, and Application of 1-D Cerium Oxide Nanomaterials: A Review

Synthesis and Characterization of Nanometer Ce_0.75Zr_0.25O₂Powders by Solid-State Chemical Reaction Method

Synthesis of Sulfur-Resistant TiO2-CeO2 Composite and Its Catalytic Performance in the Oxidation of a Soluble Organic Fraction from Diesel Exhaust

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Effect of SO2 on CO and C3H6 oxidation over CeO2 and Ce0.75Zr0.25O2

Cited by 53 publications

References 31 publications

Synthesis, Characterization, and Application of 1-D Cerium Oxide Nanomaterials: A Review

Synthesis, Characterization, and Application of 1-D Cerium Oxide Nanomaterials: A Review

Synthesis and Characterization of Nanometer Ce0.75Zr0.25O2Powders by Solid-State Chemical Reaction Method

Synthesis of Sulfur-Resistant TiO2-CeO2 Composite and Its Catalytic Performance in the Oxidation of a Soluble Organic Fraction from Diesel Exhaust

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Product

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Synthesis and Characterization of Nanometer Ce_0.75Zr_0.25O₂Powders by Solid-State Chemical Reaction Method