Preparation, Electrochemical Properties and Cytotoxicity Assessment of Nanosized CuO/La2O3/CeO2 Composite for the Decomposition of Gaseous Ammonia

Chang Mao Hung

doi:10.4028/www.scientific.net/MSF.695.53

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Preparation, Electrochemical Properties and Cytotoxicity Assessment of Nanosized CuO/La₂O₃/CeO₂ Composite for the Decomposition of Gaseous Ammonia
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HomeMaterials Science ForumMaterials Science Forum Vol. 695Preparation, Electrochemical Properties and...

Preparation, Electrochemical Properties and Cytotoxicity Assessment of Nanosized CuO/La₂O₃/CeO₂ Composite for the Decomposition of Gaseous Ammonia

Abstract:

This work considers the CuO/La₂O₃/CeO₂ nano-rare earth composite materials were synthesized by coprecipitation method with aqueous solutions of copper nitrate, lanthanum nitrate and cerium nitrate. The performance of the selective catalytic oxidation of ammonia to N₂ (NH₃-SCO) over a CuO/La₂O₃/CeO₂ nano-rare earth composite materials in a tubular fixed-bed reactor (TFBR) at temperatures from 423 to 673 K in the presence of oxygen was reported. The catalytic redox behaviors were determined by cyclic voltammetry (CV). Further, cell cytotoxicity and the percentage cell survival were determined by using MTS assay on human fetal lung tissue cell (MRC-5). The experimental results show that the CuO/La₂O₃/CeO₂ nanocomposite particles only minor cause cytotoxicity effect in cultured human cells.

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Periodical:

Materials Science Forum (Volume 695)

Pages:

53-56

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.695.53

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Online since:

July 2011

Authors:

Chang Mao Hung

Keywords:

Ammonia, CuO/La₂O₃/CeO₂ Composite, Cyclic Voltammetry (CV), Cytotoxicity, Selective Catalytic Oxidation (SCO), Tubular Fixed-Bed Reactor (TFBR)

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