Chalcogenide and Pnictide Nanocrystals from the Silylative Deoxygenationof Metal Oxides

dc.contributor.author Lin, Chia-Cheng
dc.contributor.author Tan, Shannon
dc.contributor.author Vela, Javier
dc.contributor.author Vela, Javier
dc.contributor.department Ames Laboratory
dc.contributor.department Chemistry
dc.date 2018-02-19T01:54:13.000
dc.date.accessioned 2020-06-29T23:21:59Z
dc.date.available 2020-06-29T23:21:59Z
dc.date.embargo 2018-11-09
dc.date.issued 2017-09-11
dc.description.abstract <p>Transition metal chalcogenide and pnictide nanocrystals are of interest for optoelectronic and catalytic applications. Here, we present a generalized route to the synthesis of these materials from the silylative deoxygenation of metal oxides with trimethylsilyl reagents. Specific nanophases produced in this way include Ni3S2, Ni5Se5, Ni2P, Co9S8, Co3Se4, CoP, Co2P, and heterobimetallic (Ni/Co)9S8. The resulting chalcogenide nanocrystals are hollow, likely due to differential rates of ion diffusion during the interfacial phase transformation reaction (Kirkendall-type effect). In contrast, the phosphide nanocrystals are solid, likely because they form at higher reaction temperatures. In all cases, simultaneous partial decomposition of the deoxygenating silyl reagent produces a coating of amorphous silica around the newly formed nanocrystals, which could impact their stability and recyclability.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_manuscripts/29/
dc.identifier.articleid 1031
dc.identifier.contextkey 11023710
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/29
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7222
dc.relation.ispartofseries is-j 9480
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_manuscripts/29/2017_Vela_ChalcogenidePnictide.pdf|||Fri Jan 14 23:13:35 UTC 2022
dc.source.uri 10.1039/C7TA02581E
dc.subject.disciplines Materials Chemistry
dc.subject.disciplines Physical Chemistry
dc.title Chalcogenide and Pnictide Nanocrystals from the Silylative Deoxygenationof Metal Oxides
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication b1daee7a-1960-41bd-a41e-6d4625912766
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication 42864f6e-7a3d-4be3-8b5a-0ae3c3830a11
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