scholarly journals Cerium–zirconium mixed oxide nanostructures for diesel soot oxidation: synthesis and effect of structure

RSC Advances ◽  
2020 ◽  
Vol 10 (46) ◽  
pp. 27428-27438
Author(s):  
Pablo Teles Aragão Campos ◽  
João Pedro Vieira Lima ◽  
Daniele Renata de Queiroz Silva ◽  
Claudinei Fabiano Oliveira ◽  
Sílvia Cláudia Loureiro Dias ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Mixed Oxides ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Good Activity ◽  
Oxide Nanostructures ◽  
Diesel Soot Oxidation ◽  
Effect Of Structure ◽  
Oxidation Synthesis

Nanorods and nanoparticles of Ce0.8Zr0.2O2 (CZ) mixed oxides were prepared by different routes and showed good activity for diesel soot oxidation.

MnOx–CeO2 mixed oxides for diesel soot oxidation: a review

2018 ◽  
Vol 22 (4) ◽  
pp. 230-240 ◽  
Author(s):  
Yuxi Gao ◽  
Xiaodong Wu ◽  
Shuang Liu ◽  
Duan Weng ◽  
Rui Ran
Keyword(s):  
Mixed Oxides ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Diesel Soot Oxidation

Oxygen activation on Cu/Mn–Ce mixed oxides and the role in diesel soot oxidation

2008 ◽  
Vol 139 (1-2) ◽  
pp. 113-118 ◽  
Author(s):  
Qing Liang ◽  
Xiaodong Wu ◽  
Duan Weng ◽  
Haibo Xu
Keyword(s):  
Mixed Oxides ◽  
Soot Oxidation ◽  
Oxygen Activation ◽  
Diesel Soot ◽  
Diesel Soot Oxidation

The catalytic activity of CuO–CeO2 mixed oxides for diesel soot oxidation with a NO/O2 mixture

2007 ◽  
Vol 8 (12) ◽  
pp. 2110-2114 ◽  
Author(s):  
Xiaodong Wu ◽  
Qing Liang ◽  
Duan Weng ◽  
Zhenxiang Lu
Keyword(s):  
Catalytic Activity ◽  
Mixed Oxides ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Diesel Soot Oxidation

Promising ceria–samaria-based nano-oxides for low temperature soot oxidation: a combined study of structure–activity properties

2014 ◽  
Vol 38 (12) ◽  
pp. 5991-6001 ◽  
Author(s):  
Putla Sudarsanam ◽  
Kuncham Kuntaiah ◽  
Benjaram M. Reddy
Keyword(s):  
Low Temperature ◽  
Mixed Oxides ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Active Oxygen ◽  
Structure Activity ◽  
Diesel Soot Oxidation

Nanostructured Ce–Sm mixed oxides are promising catalysts for diesel soot oxidation through facile active oxygen participation.

Co3O4–CeO2 mixed oxide-based catalytic materials for diesel soot oxidation

2008 ◽  
Vol 132 (1-4) ◽  
pp. 188-193 ◽  
Author(s):  
M. Dhakad ◽  
T. Mitshuhashi ◽  
S. Rayalu ◽  
Pradip Doggali ◽  
S. Bakardjiva ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Catalytic Materials ◽  
Diesel Soot Oxidation

A novel catalyst for diesel soot oxidation

2005 ◽  
Vol 61 (3-4) ◽  
pp. 334-345 ◽  
Author(s):  
D. Uner ◽  
M.K. Demirkol ◽  
B. Dernaika
Keyword(s):  
Soot Oxidation ◽  
Diesel Soot ◽  
Diesel Soot Oxidation ◽  
Novel Catalyst

Synthesis and Catalytic Activity Studies of V/K/Ca and V/Ks/Ce Based Catalysts for Diesel Soot Oxidation

2007 ◽  
Vol 336-338 ◽  
pp. 1995-1998
Author(s):  
Yong Heng Zhang ◽  
Jian Zhong Xue
Keyword(s):  
Catalytic Activity ◽  
Catalytic Oxidation ◽  
Amorphous Phase ◽  
Porous Alumina ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Oxidation Activity ◽  
Diesel Soot Oxidation ◽  
Oxidation Onset Temperature ◽  
Catalyst Systems

The catalysts based on V/K/Ca and V/Ks/Ce systems for diesel soot catalytic oxidation were synthesized onto the porous alumina substrates. Both catalyst systems showed a good catalytic oxidation activity. The V/K/Ca system exhibited the lowest oxidation onset temperature (OOT) of about 359oC with a composition of V/K/Ca =1:1:0.1 where the V and Ca and/or K elements could form a kind of amorphous phase that determined the catalytic activity. The V/Ks/Ce system displayed the lowest OOT of about 350oC with a composition of V/Ks/Ce = 1:2:0.1 where the K2SO4 and K5V2O3(SO4)4 phases could contribute most to the catalytic activity.

scholarly journals Investigation of Copper-supported Ceria Nanofibers for Catalytic Oxidation of Diesel Soot

2021 ◽  
Author(s):  
Dan Bahadur Pal ◽  
Anupama Mishra
Keyword(s):  
Photoelectron Spectroscopy ◽  
Fixed Bed ◽  
Tubular Reactor ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Air Flow Rate ◽  
Reaction Conditions ◽  
Tight Contact ◽  
Diesel Soot Oxidation ◽  
Working Parameters

Abstract In the present research, CeO2 and CuO/CeO2 nanofibers were synthesized by electrospinning at 12 kV DC by maintaining a tip to collector distance of 10 cm. The morphology of the as-synthesized nanofibers was determined by scanning electron microscopy, and their elemental composition was verified by X-ray photoelectron spectroscopy. The activity of the prepared samples for diesel soot oxidation was determined in a bench-scale fixed bed tubular reactor, and effluent gases were analyzed by online gas chromatography. The variations of working parameters (air flow rate, catalyst-soot ratio, catalyst-soot contact type) were evaluated in a range to optimized reaction conditions for diesel soot oxidation. The catalyst with 40% CuO/CeO2 had the highest surface area, the smallest crystallite size, and the best activity for diesel soot oxidation (tight contact) at Tf = 318oC.

Dipole-moment-driven diesel soot oxidation in the presence of alkali metal chlorides

2018 ◽  
Vol 8 (4) ◽  
pp. 970-974 ◽  
Author(s):  
Hui Chen ◽  
Yexin Zhang ◽  
Jian Zhang
Keyword(s):  
Electron Transfer ◽  
Dipole Moment ◽  
Alkali Metal ◽  
Dipole Moments ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Alkali Metal Chlorides ◽  
Metal Chlorides ◽  
Diesel Soot Oxidation

The dipole moments of alkali metal chlorides drive the oxidation of soot by promoting electron transfer, justifying their excellent activities despite their poor redox abilities.

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