Method for preparing noble metal hollow micro capsule

A precious metal and hollow microcapsule technology is applied in the field of preparing precious metal hollow microcapsules, which can solve the problems of cumbersome steps, poor repeatability, unsuitable for large-scale synthesis, etc., and achieve the effect of high porosity
CN1683066AInactive Publication Date: 2005-10-19FUDAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUDAN UNIV
Publication Date
2005-10-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the preparation process of a kind of hollow noble metal microcapsule. After mesoporous silica microball as template is amino group modified, nano noble metal particle is filled into the microball hole canal and one layer of polyelectrolyte is adsorbed to the surface, and silica is finally leached out through treatment in alkali solution condition to prepare the hollow noble metal microcapsule. Said process is simple, has adjustable shell material and is suitable for the preparation of most kinds of functional microcapsule. The microcapsule product has fine appearance and excellent performance, and may find its wide application in different fields, such as medicine preparation, catalyzing, electrochemistry, etc.
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Description

technical field

[0001] The invention relates to a method for preparing noble metal hollow microcapsules by using mesoporous silicon oxide microspheres as a template. Background technique

[0002] Hollow microcapsules with different shell components such as metal oxides, sulfides and noble metals have great potential in catalytic, optical, electrochemical and other functions due to their unique large cavity volume, functional shell components and high specific surface area. There are broad application prospects in the field of materials, and it has become one of the main research hotspots in recent years.

[0003] At present, the synthesis of hollow microcapsules mainly relies on spray drying (P.J.Bruinsma, A.Y.Kim, J.Liu, S.Baskaran, Chem.Mater., 1997,9,2507), emulsion / phase separation (H.Lin, Y. Cheng, C.Mou, Chem.Mater., 1998, 10, 3772) and sacrificial nuclear technology (L.Dlhne, S.Leporatti,; E.Donath, H.Mhwald, J.Am.Chem.Soc., 2001, 123, 5431; S.M.Marinakos, J.P.Nov...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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