In Situ Investigation of Dynamic Silver Crystallization Driven by Chemical Reaction and Diffusion.

ABSTRACT: Rational synthesis of materials is a long-term challenging issue due to the poor understanding on the formation mechanism of material structure and the limited capability in controlling nanoscale crystallization. The emergent in situ electron microscope provides an insight to this issue. By employing an in situ scanning electron microscope, silver crystallization is investigated in real time, in which a reversible crystallization is observed. To disclose this reversible crystallization, the radicals generated by the irradiation of electron beam are calculated. It is found that the concentrations of radicals are spatiotemporally variable in the liquid cell due to the diffusion and reaction of radicals. The fluctuation of the reductive hydrated electrons and the oxidative hydroxyl radicals i

SUBMITTER: Liu T 

PROVIDER: S-EPMC7035454 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature