Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/150628
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBotero, Maria L.en_US
dc.contributor.authorSheng, Yuanen_US
dc.contributor.authorAkroyd, Jethroen_US
dc.contributor.authorMartin, Jacoben_US
dc.contributor.authorDreyer, Jochen A. H.en_US
dc.contributor.authorYang, Wenmingen_US
dc.contributor.authorKraft, Markusen_US
dc.date.accessioned2021-06-07T07:50:25Z-
dc.date.available2021-06-07T07:50:25Z-
dc.date.issued2019-
dc.identifier.citationBotero, M. L., Sheng, Y., Akroyd, J., Martin, J., Dreyer, J. A. H., Yang, W. & Kraft, M. (2019). Internal structure of soot particles in a diffusion flame. Carbon, 141, 635-642. https://dx.doi.org/10.1016/j.carbon.2018.09.063en_US
dc.identifier.issn0008-6223en_US
dc.identifier.other0000-0001-6618-3098-
dc.identifier.other0000-0002-7514-4549-
dc.identifier.other0000-0002-4293-8924-
dc.identifier.urihttps://hdl.handle.net/10356/150628-
dc.description.abstractThe evolution of the internal structure of soot particles was studied in a coflow diffusion flame. Soot particles from the flame were imaged using high resolution transmission electron microscopy. An algorithm to quantify the nano-structure of the particles was extended to study the radial distribution of fringes within the particles. The approximate size of the molecules in the particles was calculated from the fringe lengths, assuming planar peri-condensed PAHs. The molecules are slightly larger (∼16 rings) and more stacked at the core than at the surface (∼12 rings) of the youngest particles sampled, suggesting that the particles could be formed via the stabilisation of a nuclei of larger PAHs and condensation of smaller PAHs on their surface. In the lower-temperature region of the flame the molecules grow mainly at the surface of the particles, whereas the molecules in the core of the particles become less stacked and slightly smaller, indicating some degree of nano-structural mobility. In the higher-temperature region of the flame, a graphitisation process takes place, with the development of a shell of longer (∼20 rings), flatter and more compact molecules, and an immobilised amorphous core. At the tip of the flame the particles are oxidised, mainly through surface oxidation.en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relation.ispartofCarbonen_US
dc.rights© 2018 Elsevier Ltd. All rights reserved.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleInternal structure of soot particles in a diffusion flameen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.identifier.doi10.1016/j.carbon.2018.09.063-
dc.identifier.scopus2-s2.0-85054747367-
dc.identifier.volume141en_US
dc.identifier.spage635en_US
dc.identifier.epage642en_US
dc.subject.keywordsMoleculesen_US
dc.subject.keywordsNanostructuresen_US
dc.description.acknowledgementThis project is funded by the National Research Foundation, Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme.en_US
item.grantfulltextnone-
item.fulltextNo Fulltext-
Appears in Collections:SCBE Journal Articles

Page view(s)

40
Updated on Oct 18, 2021

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.