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Method for preparing nanometer copper nickel compoilite oxide

A composite oxide and nano-copper technology, which is applied in chemical instruments and methods, chemical/physical processes, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of easy generation of nitrogen oxides and many types of raw materials , to achieve the effect of environmental protection and environmental friendliness

Inactive Publication Date: 2008-03-26
SHANGHAI UNIV OF ENG SCI
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Problems solved by technology

The methods described in the relevant literature have many deficiencies such as the need for many kinds of raw materials and the easy generation of nitrogen oxides during the preparation process.

Method used

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  • Method for preparing nanometer copper nickel compoilite oxide

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Embodiment 1

[0015] Add 1.50 g of Cu(Ac) to 80 ml of absolute ethanol 2 ·3H 2 O and 1.87 g Ni(Ac) 2 4H 2 The molar ratio of O, Cu, and Ni is 1 / 1, and the temperature of the solution is controlled at 50° C., then 0.5 g of polyethylene glycol surfactant is added, and it is fully dissolved by mechanical stirring and ultrasound.

[0016] Then slowly add 100ml of ethanol citric acid solution with a weight concentration of 1% to the solution, continue stirring for 2 hours to form a sol, filter, age at room temperature, dry at 105°C, roast for 3 hours, and grind to obtain a Cu-Ni composite oxide sample. A small amount of sample was taken for transmission electron microscope analysis, as shown in Figure 1.

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Abstract

A process for preparing nano-class composite copper nickel oxide includes such steps as preparing sol and gel from copper acetate, nickel acetate, citric acid and polyethylene glycol by sol-gel method, removing solvent, baking and high-temp calcining. Its advantage is no environmental pollution due to no N element in its raw materials.

Description

technical field [0001] The invention relates to a preparation method of nano-copper-nickel oxide, in particular to a method for preparing nano-copper-nickel composite oxide by using a nitrogen-free raw material. Background technique [0002] Nanomaterials are widely used in many fields of people's daily production and life due to their excellent comprehensive properties and designability, especially in the field of catalysis. Copper-based oxide catalysts are commonly used catalysts for the complete oxidation of CO and hydrocarbons, and may replace noble metal catalysts due to their good catalytic performance. Copper-based composite oxides have been studied more in recent years. Cu-Ni-O composite oxides are used in the oxidation of 1-methoxy-2-propanol to methoxyacetone, n-butanol to n-butylamine, alcohol It has high activity in reactions such as amine-catalyzed oxidative dehydrogenation. [0003] Due to the nano-specific effect, nano-copper-based composite oxides have bett...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G1/02C01G3/02C01G53/04B01J23/755B01J23/72
Inventor 陈思浩王远强徐菁利曹俭李欣荣胡顺忠黄永昌范志忠
Owner SHANGHAI UNIV OF ENG SCI