Effect of Fe2o3 Precursors on Physicochemical And
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector Arabian Journal of Chemistry (2016) 9, S678–S684 King Saud University Arabian Journal of Chemistry www.ksu.edu.sa www.sciencedirect.com ORIGINAL ARTICLE Effect of Fe2O3 precursors on physicochemical and catalytic properties of CuO/Fe2O3 system Nabil H. Amin *, Laila I. Ali, Sahar A. El-Molla, Anwer A. Ebrahim, Hala R. Mahmoud Chemistry Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo 11757, Egypt Received 13 May 2011; accepted 22 July 2011 Available online 31 July 2011 KEYWORDS Abstract CuO/Fe2O3 catalysts were prepared by impregnation method and calcined at 400 °C. Amorphous materials; The effect of changing the precursors of Fe2O3 and CuO loading on thermal, crystal, surface, H2O2 decomposition; spectral and catalytic properties of the catalysts were characterized by TG/DTG/DTA, XRD, Catalysis; N2-adsorption at À196 °C, FT-IR and the catalytic decomposition of H2O2 at 30 °C. The results FT-IR; obtained revealed that the investigated catalysts consisted of nanosized Fe2O3 as a major phase X-ray diffraction besides CuFe2O4 phase. The precursor of Fe2O3 (nitrate or sulfate) affects the thermal properties of CuO/Fe2O3 system. The SBET of CuO/Fe2O3 system calcined at 400 °C increases with using nitrate precursor of Fe2O3. The catalytic activity of H2O2 decomposition on all CuFeOn catalysts (nitrate precursor) is higher than that of CuFeOs catalysts (sulfate precursor). ª 2011 Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
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