Anisotropic Nanocrystal Dissolution Observation by in Situ Transmission Electron Microscopy

Autor(es)

Cordeiro, Marco A. L. ^[1] ; Crozier, Peter A. ^[2] ; Leite, Edson R. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Mat Sci & Engn, BR-13565905 Sao Carlos, SP - Brazil

^[2] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 - USA

^[3] Univ Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Nano Letters; v. 12, n. 11, p. 5708-5713, NOV 2012.
• Citações Web of Science: 7

Resumo

In this study, some keys in the knowledge of nanocrystals dissolving by the direct phenomenon observations are provided through in situ transmission electron microscopy experiments. The new characteristic of anisotropic nanoparticles dissolving is discussed and correlated with the evolution of the crystal to reach a minimum surface free energy (Gibbs-Wulff theorem), which has an impact on the nanocrystal ripening models. The process whereby the ripening occurs was identified and correlated to the adparticle motion. (AU)

• Processo FAPESP: 09/50604-4 - Estudo da sintese de nanocristais de ceo2 e zros e a sinterizacao por microscopia eletronica de transmissao in situ.
• Beneficiário: Marco Aurélio Liutheviciene Cordeiro
• Modalidade de apoio: Bolsas no Brasil - Doutorado