{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Abecassis B"],"funding":["Basic Energy Sciences","National Science Foundation"],"pagination":["4977-4983"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9067564"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(17)"],"pubmed_abstract":["Modern syntheses of colloidal nanocrystals yield extraordinarily narrow size distributions that are believed to result from a rapid \"burst of nucleation\" (La Mer, <i>JACS</i>, 1950, <b>72</b>(11), 4847-4854) followed by diffusion limited growth and size distribution focusing (Reiss, <i>J. Chem. Phys.</i>, 1951, <b>19</b>, 482). Using a combination of <i>in situ</i> X-ray scattering, optical absorption, and <sup>13</sup>C nuclear magnetic resonance (NMR) spectroscopy, we monitor the kinetics of PbS solute generation, nucleation, and crystal growth from three thiourea precursors whose conversion reactivity spans a 2-fold range. In all three cases, nucleation is found to be slow and continues during >50% of the precipitation. A population balance model based on a size dependent growth law (1/"],"journal":["Chemical science"],"pubmed_title":["Persistent nucleation and size dependent attachment kinetics produce monodisperse PbS nanocrystals."],"pmcid":["PMC9067564"],"funding_grant_id":["DE-AC02-05CH11231","CHE-2004008"],"pubmed_authors":["DeRosha D","McMurtry BM","Peters B","Bennett E","Greenberg MW","Owen JS","Guillemeney L","Abecassis B","Bal V","Campos MP","Sharpnack L","Hendricks MP","Mahler B","Prevost S","Saenz N"],"additional_accession":[]},"is_claimable":false,"name":"Persistent nucleation and size dependent attachment kinetics produce monodisperse PbS nanocrystals.","description":"Modern syntheses of colloidal nanocrystals yield extraordinarily narrow size distributions that are believed to result from a rapid \"burst of nucleation\" (La Mer, <i>JACS</i>, 1950, <b>72</b>(11), 4847-4854) followed by diffusion limited growth and size distribution focusing (Reiss, <i>J. Chem. Phys.</i>, 1951, <b>19</b>, 482). Using a combination of <i>in situ</i> X-ray scattering, optical absorption, and <sup>13</sup>C nuclear magnetic resonance (NMR) spectroscopy, we monitor the kinetics of PbS solute generation, nucleation, and crystal growth from three thiourea precursors whose conversion reactivity spans a 2-fold range. In all three cases, nucleation is found to be slow and continues during >50% of the precipitation. A population balance model based on a size dependent growth law (1/","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 May","modification":"2025-05-18T13:23:24.177Z","creation":"2024-12-04T09:14:21.025Z"},"accession":"S-EPMC9067564","cross_references":{"pubmed":["35655873"],"doi":["10.1039/d1sc06134h"]}}