Your browser doesn't support javascript.
loading
Single-particle mapping of nonequilibrium nanocrystal transformations.
Ye, Xingchen; Jones, Matthew R; Frechette, Layne B; Chen, Qian; Powers, Alexander S; Ercius, Peter; Dunn, Gabriel; Rotskoff, Grant M; Nguyen, Son C; Adiga, Vivekananda P; Zettl, Alex; Rabani, Eran; Geissler, Phillip L; Alivisatos, A Paul.
Afiliação
  • Ye X; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Jones MR; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Frechette LB; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Chen Q; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Powers AS; Miller Institute for Basic Research in Science, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Ercius P; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Dunn G; Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Rotskoff GM; Department of Physics, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Nguyen SC; Biophysics Graduate Group, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Adiga VP; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Zettl A; Department of Physics, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Rabani E; Department of Physics, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Geissler PL; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Alivisatos AP; Kavli Energy NanoScience Institute, University of California, Berkeley, and Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Science ; 354(6314): 874-877, 2016 11 18.
Article em En | MEDLINE | ID: mdl-27856905
ABSTRACT
Chemists have developed mechanistic insight into numerous chemical reactions by thoroughly characterizing nonequilibrium species. Although methods to probe these processes are well established for molecules, analogous techniques for understanding intermediate structures in nanomaterials have been lacking. We monitor the shape evolution of individual anisotropic gold nanostructures as they are oxidatively etched in a graphene liquid cell with a controlled redox environment. Short-lived, nonequilibrium nanocrystals are observed, structurally analyzed, and rationalized through Monte Carlo simulations. Understanding these reaction trajectories provides important fundamental insight connecting high-energy nanocrystal morphologies to the development of kinetically stabilized surface features and demonstrates the importance of developing tools capable of probing short-lived nanoscale species at the single-particle level.
Buscar no Google
Adicionar na Minha BVS
Imprimir
XML
PubMed Links

Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Estados Unidos
Buscar no Google
Adicionar na Minha BVS
Imprimir
XML
PubMed Links

Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Estados Unidos