A Novel Approach to Disperse CuO onto the Zeolites Mordenite and Beta

Xiang Ying Hao; Cui Zhang; Shuang Xi Liu; Hai Fu Guo

doi:10.4028/www.scientific.net/AMR.284-286.58

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Gas Barrier Properties of SiO_X Films Deposited by RF Magnetron Co-Sputtering
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Experimental Study on Effects of Laminated Structure on Acoustic Insulation Property of Composites
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A Novel Approach to Disperse CuO onto the Zeolites Mordenite and Beta
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Fabrication, Microstructure and Properties of Nitrides Bonded Alumina Castables by In Situ Nitridation Reaction
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Research on the Performance of SiAlON-Graphite-SiC Composites
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Fabrication of Barrel-Type Pre-Formed Shape of Al₂O_3f+C_f/ZL109 Composite Material
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 284-286A Novel Approach to Disperse CuO onto the Zeolites...

A Novel Approach to Disperse CuO onto the Zeolites Mordenite and Beta

Abstract:

Zeolites mordenite (MOR) and β decorated with high dispersion degree and loading content of CuO composite (symbolized as CuO/zeolite) were prepared via a novel method-the stepped hydrothermal synthesis. The resultant composite were characterized with details by powder XRD, ICP-AES, H₂-TPR and TEM techniques. Shown by experiment, the stepped hydrothermal synthetic method adopted in the present research using urea as alkali source as well as benefiting from the ultrasonic wash treatment hardly damages the zeolitic framework structure. Compared with ammonia, high dispersion degree and loading level of CuO are yielded as a consequence of the employment of urea as alkali source. Besides, the ultrasonic wash treatment not only removes some CuO precursors that deposit on the external surface of the porous support but also produces a uniform distribution of CuO particles with smaller dimension on the surface of zeolites: CuO are dispersed in nanoscale of about 4-8 nm on mordenite and 2-5 nm on zeolite β. The present synthetic strategy could be therefore applied as a novel general method for the manufacture of functional materials in a wide spectrum.