Solid-state electrochemical, X-ray and spectroscopic characterization of substitutional solid solutions of iron-copper hexacyanoferrates

Copper and iron hexacyanoferrate form a continuous series of substitutional solid solutions, which have been studied by solid-state electrochemistry, X-ray powder diffraction, IR and ESR spectroscopy. All methods unambiguousl y prove the formation of solid solutions. The results show the different ca pabilities of these techniques to study such systems. Especially in the cas e of poor crystallinity and strongly magnetically interacting metal ions, v oltammetry of immobilized microparticles offers a powerful tool for the det ermination of the composition and properties of solid solutions. (C) 2000 E lsevier Science S.A. All rights reserved.