Promotional effect of nickel addition on soot oxidation activity of Ce0.9Pr0.1O2 oxide catalysts

Rajvanshi, Kirti; Patil, Sunaina S.; Lakhanlal, Lakhanlal; Dasari, Hari Prasad; Saidutta, M. B.; Dasari, Harshini

doi:10.1007/s11696-020-01275-2

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2022

2024

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Cited by 6 publications

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“…Ramı ´rez-Cabrera et al [68] also reported the inhibitory effect of Nb-doped CeO Soot 595-600 [47][48][49][50] 149-168 [70][71][72][73] 149-168 [70][71][72][73] steam reforming. In their studies, the reactivity of methane with CeO 2 and gadolinium (Gd), and Nb-doped CeO 2 were studied.…”

Section: Resultsmentioning

confidence: 99%

A Negative Effect of Niobium‐Doped Ceria on Soot Oxidation Activity^‡

et al. 2022

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Niobium-doped ceria catalysts were synthesized to study soot oxidation activity. X-Ray diffraction (XRD) and Raman analysis of the samples revealed the presence of a fluorite structure of CeO 2 for all the doped samples. The T 50 temperature of the pure CeO 2 sample was more significant than that of bare soot. The high catalytic activity of the CeO 2 catalyst can be attributed to the low crystallite size, high facet ratio, and the large Brunauer-Emmett-Teller (BET) surface area as compared to Nb-doped samples. The activation energy calculated by both Ozawa and KAS methods were found to be low for CeO 2 when compared to Nb-doped samples. CeO 2 resulted in better soot oxidation activity with low activation energy.

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