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Porous Co3O4 monodisperse microsphere-loaded Au-Pd alloy nanocatalyst and preparation method thereof

A technology of monodisperse microspheres and alloy nanometers, applied in separation methods, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., to achieve simple preparation process, controllable specific surface area, and cheap and easy-to-obtain raw materials Effect

Inactive Publication Date: 2018-06-29
YULIN NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there have been reports on supported Au–Pd catalysts, the controllable synthesis of Au–Pd bimetallic particle composition and size is still a major challenge in the development of bimetallic catalysts.
To the best of our knowledge, so far there are no reports on porous Co 3 o 4 Preparation of Monodisperse Microspheres Supported Au–Pd Alloy Catalyst and Its Application in the Study of Catalytic Oxidation of Toluene

Method used

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  • Porous Co3O4 monodisperse microsphere-loaded Au-Pd alloy nanocatalyst and preparation method thereof
  • Porous Co3O4 monodisperse microsphere-loaded Au-Pd alloy nanocatalyst and preparation method thereof
  • Porous Co3O4 monodisperse microsphere-loaded Au-Pd alloy nanocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Porous Co prepared in Example 1 3 o 4 Monodisperse microspheres:

[0042] 1.0g CoCl 2 ·6H 2 Dissolve O in a mixed solution of 20mL deionized water, 60mL glycerol and 1.0g urea, and stir for 1h; transfer the obtained red solution into a 100mL polytetrafluoroethylene-lined stainless steel autoclave, and conduct a hydrothermal treatment at 120°C for 12h; The precipitate obtained after hydrothermal treatment was centrifuged, washed three times with absolute ethanol and deionized water, and dried in an oven at 80 ° C for 12 h; finally, the obtained magenta powder was roasted in an air atmosphere in a muffle furnace. Raise from room temperature to 500 °C at a rate of 1 °C / min and keep at this temperature for 3 h to obtain porous Co 3 o 4 Monodisperse microsphere carrier.

[0043] Wherein, the XRD spectrogram of the prepared sample is detailed in figure 1 Curve (a) in, after comparison with the standard XRD pattern of cobalt oxide sample, it can be known that the prepar...

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Abstract

The invention discloses a porous Co3O4 monodisperse microsphere-loaded Au-Pd alloy nanocatalyst and a preparation method thereof. The porous Co3O4 monodisperse microsphere-loaded Au-Pd alloy nanocatalyst comprises a Co3O4 carrier with a monodisperse microsphere-like morphology having porous cubic agglomeration, and the pore wall of the carrier is loaded with Au-Pd alloy. The porous Co3O4 monodisperse microsphere-loaded Au-Pd alloy nanocatalyst capable of effectively removing volatile organic compounds is a porous nanocatalyst and has better low-temperature catalytic activity, water resistanceand heat resistance.

Description

technical field [0001] The invention relates to the field of catalysts for eliminating volatile organic compounds, especially a porous Co 3 o 4 Monodisperse microsphere supported Au-Pd alloy nano catalyst and its preparation method. Background technique [0002] Volatile organic compounds (VOCs) emitted from industry and transportation pollute the atmosphere and endanger human health. Catalytic oxidation is one of the most effective ways to eliminate VOCs, and the development of high-performance catalysts has become the focus of research on environmental catalysis. Catalysts used for catalytic oxidation to eliminate VOCs mainly include two categories: transition metal oxides (including single and composite transition metal oxides) and supported noble metal or (and) transition metal catalysts, among which supported catalysts are widely used. The role of the carrier is mainly to increase the effective surface of the catalyst, provide a suitable pore structure, and ensure su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01D53/86B01D53/44B01D53/72
CPCB01D53/864B01D53/8687B01D2257/7027B01D2257/708B01J23/8913Y02A50/20
Inventor 杨黄根陈渊李家贵朱立刚覃利琴陶萍芳李娜王书龙张培
Owner YULIN NORMAL UNIVERSITY
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