Method for preparing nano palladium metal catalyst

A technology of metal catalysts and nano-palladium, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as complex processes and unfavorable large-scale production, and achieve Easy to recover, not easy to deactivate, high activity effect
CN103657643AInactive Publication Date: 2014-03-26NANJING UNIV OF TECH
4 Cites 15 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF TECH
Publication Date
2014-03-26
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for preparing a nano palladium metal catalyst. The method for preparing the nano palladium metal catalyst comprises the steps of performing functional grafting pretreatment on a carrier, dipping a palladium salt solution, reducing the palladium salt solution to obtain nano metal particles, and finally coating the nano metal particles separately by using an embedding agent to obtain a final solid-supported nano palladium metal catalyst. The method is characterized by comprising functionally grafting the carrier and separately coating a nano metal catalyst; the effect of the method is shown in a grafting effect of a functional additive, so that forming and dispersing of the nano palladium metal particles are facilitated; through the embedding agent, the stability of the catalyst is improved in the process of using a palladium nanoparticle catalyst; the recycling of the catalyst is facilitated, and the catalyst can be reused. The preparation method of the catalyst is simple and convenient, cheap and easily available in raw materials and applicable to industrial production.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a kind of method for preparing nanometer palladium metal catalyst, relate in particular to the method for preparing a kind of immobilized type nanometer palladium metal catalyst, which involves the addition of functional auxiliary agent which has coordination effect with metal, and functional auxiliary agent can be combined with The grafting effect of the carrier is beneficial to the formation and stability of the catalyst. At the same time, the embedding agent of nano-palladium metal is introduced, which can separate and cover the nano-palladium catalyst and prevent the aggregation and deactivation of the metal palladium particles during the reaction process. Background technique

[0002] Nanoscale noble metal catalysts are gradually becoming a typical representative of high-efficiency catalysts and a hotspot in catalyst research. However, due to the large specific surface area of ​​nanoparticles, it is very unstable a...

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
Login to View More