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Samples of Cu-doped goethites were prepared and characterized by Mössbauer spectroscopy, XRD, TPR and BET surface area measurements. Mössbauer data showed the incorporation of Cu 2+ in the goethite structure, and this cation-doping caused a significant decrease of the chemical reduction temperature in the TPR process. The catalytic behavior of these Fe 1−x Cu x OOH materials...