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dc.contributor.authorMartin, Jacoben
dc.contributor.authorBotero, Men
dc.contributor.authorSlavchov, Radomiren
dc.contributor.authorBowal, Kimberlyen
dc.contributor.authorAkroyd, Jethroen
dc.contributor.authorMosbach, Sebastianen
dc.contributor.authorKraft, Markusen
dc.date.accessioned2018-11-16T00:30:38Z
dc.date.available2018-11-16T00:30:38Z
dc.date.issued2018-09-27en
dc.identifier.issn1932-7447
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/285126
dc.description.abstractThe formation of carbon nanoparticles in flames involves a nucleation step that remains poorly understood. Experimentally, carbon nuclei formation is known to depend strongly on the electrical aspects of combustion but modes of interaction between charged species in the flame and carbon precursors have yet to be found. We present evidence for flexoelectrically polarised aromatics contributing to carbon nanoparticulate nucleation. We imaged the nascent nanoparticles using high resolution transmission electron microscopy, which revealed that the majority of aromatics in the early carbon nanoparticles are fullerene-like and curved. The curvature induces a significant molecular flexoelectric dipole moment in the polyaromatic hydrocarbons. This electric polarization allows these molecules to strongly interact with chemi-ions produced during combustion, which we demonstrate using electronic structure calculations. The results indicate that the physical interaction between fullerene-like polar aromatics and chemi-ions is critically assisting the nucleation, and opens a new route to reduce pollution and improve flame-produced nanomaterials.
dc.publisherAmerican Chemical Society (ACS)
dc.titleFlexoelectricity and the Formation of Carbon Nanoparticles in Flamesen
dc.typeArticle
prism.endingPage22215
prism.issueIdentifier38en
prism.publicationDate2018en
prism.publicationNameJournal of Physical Chemistry Cen
prism.startingPage22210
prism.volume122en
dc.identifier.doi10.17863/CAM.32497
dcterms.dateAccepted2018-08-31en
rioxxterms.versionofrecord10.1021/acs.jpcc.8b08264en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-09-27en
dc.contributor.orcidMartin, Jacob [0000-0002-7514-4549]
dc.contributor.orcidSlavchov, Radomir [0000-0002-4639-1225]
dc.contributor.orcidBowal, Kimberly [0000-0002-2815-6280]
dc.contributor.orcidAkroyd, Jethro [0000-0002-2143-8656]
dc.contributor.orcidMosbach, Sebastian [0000-0001-7018-9433]
dc.contributor.orcidKraft, Markus [0000-0002-4293-8924]
dc.identifier.eissn1932-7455
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idNational Research Foundation Singapore (via Cambridge Centre for Advanced Research and Education in Singapore (CARES)) (unknown)
pubs.funder-project-idNational Research Foundation Singapore (via Cambridge Centre for Advanced Research and Education in Singapore (CARES)) (unknown)
rioxxterms.freetoread.startdate2019-09-27


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