多核錯体CuRE(dhbaen)(NO_3)(dmso)_m(H_2O)_n,(RE=Sm, Eu, Gd, Tb, Dy, Y, Ho, Er, Tm, Tb, Lu)の熱分解生成物

概要

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The thermally decomposed products of the CuRE (dhbaen) (NO_3) (dmso)_m (H_2O)_n complex were investigated by differential thermal analysis (TGA), X-ray diffraction patterns (XRD), energy dispersive X-ray analysis (EDX), and X-ray photoelectron spectroscopy (XPS). A mixed phase of RE_2O_2SO_4 and CuO was formed at a low temperature. The particle size of CuO in the mixed phase was estimated to be 30-90 nm by XRD. When the ionic radius of RE^<3+> ion is small, the RE_2O_2SO_4 phase decomposed and formed a heterometallic RE_2Cu_2O_5 at 850-1100℃. It appears that one dmso directly interacted with the RE ion (RE-O=S(-CH_3)_2) for the complex and the RE-O=S bond remained as RE_2O_2SO_4 after the decomposition. CuO in the mixed phase did not interact with -SO_4 which was confirmed by XPS.
社団法人日本セラミックス協会の論文
2001-05-01