Study of Preparation, Characterization and Temperature-Programmed Reduction of NiO-ZnO Binary Materials

Abstract:

The NiO-ZnO binary materials had been prepared by co-precipitation method. The weight percent of nickel of NiO-ZnO materials were 5, 10 and 20; they were pretreated under air at temperature of 300, 500 and 700°C, respectively. The characterization of NiO-ZnO materials were the thermal gravity analysis(TGA), X-ray diffraction(XRD), N₂ adsorption-desorption at 77K, scaning electron microscope(SEM) and temperature-programmed reduction(TPR). The results revealed that surface areas of NiO-ZnO materials order from large to small were 20NiZn(OH)_x(66 m²·g^-1) > 10NiZn(OH)_x(34 m²·g^-1) > 5NiZn(OH)_x(9 m²·g^-1) after being calcined at the temperature of 500°C. Further, NiO-ZnO materials had two main reductive peaks at 390-415°C and 560-657°C, respectively. In all NiO-ZnO materials, 20NiZn(OH)_x-C500 material had the highest surface area and the best interaction between NiO and ZnO.

• Periodical: Advanced Materials Research (Volume 664)
• Pages: 515-520
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.664.515
• Online since: February 2013
• Authors: Chih Wei Tang, Jiunn Jer Hwang, Shie Hsiung Lin, Chin Chun Chung
• Keywords: Nickel Oxide (NiO), Temperature-Programmed Reduction, Zinc Oxide (ZnO)

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