Nanoparticles, and a method of sol-gel processing

A processing method, nanoparticle technology, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve problems such as intractability and easy agglomeration

Inactive Publication Date: 2009-03-04
PROTOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These materials are valuable, but are difficult to handle and tend to agglomerate when using conventional processing methods

Method used

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  • Nanoparticles, and a method of sol-gel processing
  • Nanoparticles, and a method of sol-gel processing
  • Nanoparticles, and a method of sol-gel processing

Examples

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Embodiment 1

[0043] Preparation of zirconium-based sols and nanoparticles using sucrose and pectin as precursors

[0044] The conventional organic precursors used in the above "chemical methods" are glycerol in the GN method and ethylene glycol and citric acid in the Pechini method. The inventors of the present invention have surprisingly found that other precursor molecules can be used to obtain gels and nanoparticles.

[0045] Convincing results were obtained by using sucrose and pectin as precursor molecules. Pectin can be considered as a dispersant and we have also found that the weight ratio of sucrose to pectin will affect the gelation process.

[0046] Sucrose, C 6 h 12 o 6 , consisting of one molecule of glucose and one molecule of fructose. C 6 h 12 o 6 are the chemical structural formulas of both glucose and fructose, but they have slightly different structures. Table sugar is nearly pure sucrose (approximately 99% sucrose).

[0047] Pectin is found in ripe fruits and c...

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Abstract

Methods of sol-gel processing for preparing of gels and nanoparticles are described. The invention also relates to gels and nanoparticles prepared by the described methods. A preferable embodiment describes ZrO2 nanoparticles produced by sol gel processing by using sucrose and pectin as polymerization agents.

Description

technical field [0001] The present invention relates to sol-gel processing methods for the preparation of stabilized or doped gels and nanoparticles, and also to gels and nanoparticles prepared by said methods. Background technique [0002] Over the past few decades, there has been growing interest in nanostructured materials synthesized from particles smaller than 100 nm. Widespread applications in industries such as aerospace, steel, cosmetics, healthcare, automotive, bioengineering, optoelectronics, computers and electronics have stimulated this interest. Research to develop applications leading to technologies for multilayer films, porous pillars, thin films, nanocrystalline materials, nanopowders, and nanoclusters for applications such as paints, preservatives, nanocomposites, pharmaceuticals, biomedical implants, and military components . [0003] It is known that materials with nanoscale grain sizes exhibit different properties than the same materials in bulk form. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G25/02C01G53/04C01B13/32C01B33/152C01G1/02C01G17/02C01G27/02C01G35/00C03C
CPCC01P2006/12C01G35/00C01G17/02C01P2002/72C01P2002/88C01G1/02C01P2004/64C01P2002/60C01P2004/04C01G25/02C01G53/04C01G27/02B82Y30/00C01B13/32C01B33/152
Inventor C·S·苏丘
Owner PROTOTECH
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