Synthesis of nanosize-controllable core-shell materials

A simple and inexpensive method for synthesizing metals (M@C), bimetallic and alloys with sugars as the carbon source and reducing material is described in the present invention. By adjusting the C/M ratios, nanosize-controllable metals encapsulated in the carbon shells can be prepared by carbonizat...

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Bibliographic Details
Main Authors TSAI, CHUN-KUO, WANG, HONG-PAUL, CHIU, YU-MIN, WANG, JAMES, HUANG, CHIEN-HUA
Format Patent
LanguageChinese
English
Published 16.08.2010
Subjects
ALLOYS
CASTING
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Summary:A simple and inexpensive method for synthesizing metals (M@C), bimetallic and alloys with sugars as the carbon source and reducing material is described in the present invention. By adjusting the C/M ratios, nanosize-controllable metals encapsulated in the carbon shells can be prepared by carbonization of the metal-sugar complexes at 423-923 K. The carbon shells can prevent the nanosize core metals from being oxidized and aggregated. These carbon coated size-controllable metals, multi-metals and alloys form a new class of materials that certainly have promising applications in energy, environmental, biomedical, catalysis and optical/electronic nanotechnologies including light activated malignant tumor eradication, drug delivery, nanoreactors, heat dissipation of optical/electronic devices, nanofluids, hot mobile catalysts, nanonuclear energy, and recycling of heavy metals from wastewater.
Bibliography:Application Number: TW20090104404