Study on the incorporation of various elements into the Keggin lacunary-type phosphomolybdate [PMo ₉ O ₃₄ ] ⁹⁻ and subsequent purification of the polyoxometalates by nanofiltration

Transition-metal substituted Keggin-type polyoxometalates (POMs) are of great interest for applications in biomedicine, material science and catalysis. The synthesis of transition metal-substituted Keggin-type polytungstates via the formation of a lacunary...