Mössbauer Spectroscopic Studies of Supported α-Fe2O3 and Fe Catalysts II: The Effect of the Second Metal Addition |
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Authors: | Ho-Hsiang Wei Kuen-Hai Lin |
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Abstract: | The effect of the addition of a second metals such as Zn and Ni on the calcinaton and reduction of alumina, magnesia and silicasupported iron catalysis with total iron loading of 5wt% is investigated by Mössbauer spectroscopy. It is shown that the reducibility of supported α-Fe2O3 is gradually increased by adding the second metal. The values of the magnetic hyperfine field obtained from Mössbauer spectra for the Zn or Ni-added α-Fe2O3 or Fe catalysts decreased with increasing second metal loading. |
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Keywords: | Mö ssbauer effect iron catalysts |
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