How Crystallization Affects the Oriented Attachment of Silver Nanocrystals

Autor(es)

Faccin, Giovani M. ^{[1, 2]} ; Pereira, Zenner S. ^[3] ; da Silva, E. Z. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

^[2] Univ Fed Grande Dourados Unidade I, Fac Ciencias Exatas & Tecnol, BR-79804970 Dourados, MS - Brazil

^[3] Univ Fed Rural Semiarido UFERSA, Dept Ciencia & Tecnol, BR-59780000 Caraubas, RN - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Physical Chemistry C; v. 125, n. 12, p. 6812-6820, APR 1 2021.
• Citações Web of Science: 0

Resumo

Oriented attachment processes between nanocrystals provide a promising route for the synthesis of mesocrystals that, although made of the same elements as their usual crystal counterparts, nevertheless possess very distinct physical and chemical properties that can be explored for technological applications. In this study, the oriented attachment process experimentally observed between silver nanocrystals is analyzed through a systematic approach involving a series of molecular dynamics simulations. The simulations elucidate how the crystallization process between silver nanocrystals leads to either imperfect oriented attachment or perfect oriented attachment, how likely those processes are to occur and how faceting affects their outcome. This information can be explored to develop new strategies aimed at triggering specific crystallization processes that take place during mesocrystal growth, thus allowing control over the characteristics of the final synthesized material. (AU)

• Processo FAPESP: 17/26105-4 - EMU concedido no processo 2016/23891-6 cluster computacional de alto desempenho
• Beneficiário: Alex Antonelli
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 16/23891-6 - Modelagem computacional da matéria condensada
• Beneficiário: Alex Antonelli
• Modalidade de apoio: Auxílio à Pesquisa - Temático