SYNTHESIS OF NANO-CRYSTALLINE CO3O4 PARTICLES BY HYDROTHERMAL METHOD UNDER PULSED MAGNETIC FIELD

Deng, Xiaolong; Li, Ying; Jin, Hongming; Wang, Zhun; Zhu, Zhenzhen; Liu, Huan

doi:10.1142/s0217979209063043

Cited by 4 publications

(1 citation statement)

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“…A variety of methods, such as electrochemical, − chemical, − electrical, magnetic, thermal, − photoinduced, biological, and ultrasound-assisted methods, have been adopted to modify, improve, and control crystallinity and structure of NPs for desired properties. For instance, metallic NPs with high-index facets could be synthesized by applying an additional square-wave electrical potential. − These NPs have high-energy surfaces and high electrocatalysis activities.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method to Improve Crystallinity of Supported Nanoparticles Using Low Melting Point Metals

Liu

Zhu

et al. 2011

J. Phys. Chem. C

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The crystallinity of nanoparticles plays a crucial role in controlling materials’ mechanical, catalytic, magnetic and electronic properties. A novel method to improve the crystallinity of nanoparticles by doping and releasing of low melting point amalgamating metals was proposed and tested. The HRTEM micrographs of AgMC, Hg-doped AgMC, and Hg-released AgMC exhibited a significant improvement in crystallinity of silver nanoparticles supported on chabazite by a mercury adsorption–desorption cycle. Molecular dynamics simulation showed that after doping and removing of amalgamating mercury atoms on a silver nanoparticle with pre-existing defects, the majority of the defects were eliminated and the crystallinity was greatly improved, while such an improvement could not be achieved by conventional thermal annealing.

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