Effect of morphology and oxidation state of nickel on diesel soot oxidation activity

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dc.contributor.authorVijay, M.P.A.
dc.contributor.authorPatil, S.S.
dc.contributor.authorMadhura, D.R.
dc.contributor.authorAnjana, A.P.
dc.contributor.authorGouramma, P.
dc.contributor.authorPrasad Dasari, H.P.
dc.contributor.authorArya, S.B.
dc.contributor.authorHarshini, H.
dc.date.accessioned2026-02-04T12:28:25Z
dc.date.issued2022
dc.description.abstractNiO sample is synthesized using the EDTA citrate complex method and calcined at 600 °C/5 h. Ni sample was acquired by reducing NiO to Ni at 600 °C in 4% H<inf>2</inf>/N<inf>2</inf> atmosphere. Its physicochemical properties were obtained by XRD and Raman spectroscopy analysis, where it confirmed the complete reduction of NiO to Ni. SEM and TEM micrographs revealed a drastic particle growth for the Ni, indicating NiO sintering during the reduction process and a considerable surface morphology change. Ozawa and KAS methods were used to calculate the mean activation energy (E<inf>a</inf>) value. NiO displayed lower E<inf>a</inf> than Ni. Hence, NiO showed better catalytic activity than Ni. © 2022
dc.identifier.citationMaterials Today: Proceedings, 2022, 57, , pp. 1865-1870
dc.identifier.urihttps://doi.org/10.1016/j.matpr.2022.01.119
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/22730
dc.publisherElsevier Ltd
dc.subjectActivation energy
dc.subjectCatalyst activity
dc.subjectDiesel engines
dc.subjectMorphology
dc.subjectNanoparticles
dc.subjectOxidation
dc.subjectPhysicochemical properties
dc.subjectSintering
dc.subjectSoot
dc.subjectSurface morphology
dc.subjectTransmission electron microscopy
dc.subjectX ray powder diffraction
dc.subjectCitrate complex
dc.subjectComplex methods
dc.subjectDiesel soot oxidation
dc.subjectEthylene diamine tetra-acetic acid
dc.subjectEthylenediamine tetra acetic acid-citrate complex method
dc.subjectNanoparti-cles
dc.subjectOxidation activities
dc.subjectOxidation state
dc.subjectPhysicochemical property
dc.subjectSynthesised
dc.subjectNickel oxide
dc.titleEffect of morphology and oxidation state of nickel on diesel soot oxidation activity

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