Abstract In this work, it is analyzed the effect of partial substitution Fe by Ni in a BaFeO 3 perovskite to be used as catalyst for NO x -assisted diesel soot oxidation. A series BaFe 1−x O (x = 0, 0.2, 0.4 and 0.8) catalysts have been synthesized using sol–gel method. The characterized ICP-OES, XRD, XPS, 2 -TPD, H -TPR- TEM. catalytic activity oxidation determined Temperature Programmed React...

The basic LaCoO3 perovskite oxides were prepared by the series of methods (reverse co-precipitation, citric acid aided sol–gel, glycine assisted solution combustion), underwent physicochemical characterization (XRD, FTIR, BET, XPS and SEM), followed their soot oxidation activity tests in both “loose” “tight” conditions soot-catalyst contact. revealed that catalyst formed using combustion synthe...

Many oxygenated hydrocarbon species formed during combustion, such as furans, are highly toxic and detrimental to human health and the environment. These species may also increase the hygroscopicity of soot and strongly influence the effects of soot on regional and global climate. However, large furans and associated oxygenated species have not previously been observed in flames, and their form...

Accurate knowledge of diesel particulate filter (DPF) loading is critical for robust and efficient operation of the combined engine-exhaust aftertreatment system. Furthermore, upcoming on-board diagnostics regulations require on-board technologies to evaluate the status of the DPF. This work describes the application of radio frequency (RF) – based sensing techniques to accurately measure DPF s...

In this paper, the flame-wall interaction of reacting diesel spray under engine like conditions is investigated using large eddy simulations. The aim study to understand influence distance between wall and nozzle on air entrainment rate, which a key variable in formation/oxidation process soot. Three experimental cases are investigated, free jet case two impingement with from 30 mm 50 mm, consi...

Surface oxidation states of ultrafine particulate matter can influence the proinflammatory responses and reactive oxygen species levels in tissue. Surface active species of vehicle-emission soot can serve as electron transfer-mediators in mitochondrion. Revealing the role of surface oxidation state in particles-proteins interaction will promote the understanding on metabolism and toxicity. Here...