Preparation method for synthesizing graphene loaded noble metal catalyst in organic phase

A precious metal catalyst, a technology for synthesizing graphite, applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc. problems such as the speed of nanoparticle nucleation, to achieve the effect of convenient operation and prevention of overlapping
CN102198398AInactive Publication Date: 2011-09-28NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2011-09-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method for synthesizing a graphene loaded noble metal catalyst in an organic phase, and belongs to the technical field of catalysts and preparation thereof. The method mainly comprises the following steps of: preparing pre-oxidized graphite powder; preparing glassy yellow oxidized graphite solution; preparing an oxidized graphite solid; dispersing oxidized graphite in N-methylpyrrolidone solution, and stripping the oxidized graphite by ultrasonic processing to prepare the N-methylpyrrolidone solution of oxidized graphene; and adding a stabilizing agent and a precursor of noble metal into the N-methylpyrrolidone solution of oxidized graphene, mixing fully, and heating to obtain the graphene loaded monodisperse noble metal catalyst in one step. The graphene loaded noble metal nano particle catalyst prepared by the method has high structural stability, dispersibility, stability and activity and large specific surface area.
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Description

technical field

[0001] The invention belongs to the technical field of catalysts and their preparation, in particular to a method for preparing graphene-loaded noble metal catalysts. Background technique

[0002] Graphene, that is, single-layer graphite, is made of sp 2 A new type of carbon material with a two-dimensional honeycomb structure of monomolecular layer thickness composed of hybridized carbon atoms connected to each other. Due to its special structure, graphene has many special physical properties and extraordinary electrical, thermal, optical and mechanical properties, and has great potential in nanoelectronic devices, composite materials, energy storage materials, catalytic materials, sensing materials, etc. application prospects. Since its discovery before 2004 (see: K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, I. V. Grigorieva, and A. A. Firsov Science, 2004, 306, 666-669), there has been a lot of research on graphene Basic...

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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