It is challenging to explore and prepare polyoxometalates-based nanomaterials (PNMs) with controllable morphologies and diversiform components. Herein, 3d–4f metals are introduced into isopolyoxometalates and Anderson-type polyoxometalates, CeCdW₁₂ nanoflower and EuCrMo₆ microflaky have been fabricated respectively. A series of control experiments are carried out to identify the impact factors on the rare morphologies in PNMs. Furthermore, upon excitation at 396 nm, the emission spectrum of EuCrMo₆ displays five prominent f − f emitting peaks at 674, 685, 690, 707, and 734 nm that are assigned to Eu^{3+ 5}D₀ → ⁷F_J (J = 0, 1, 2, 3, 4) transitions. Meanwhile, the VSM results show that the Cr⁺³ ions in EuCrMo₆ display anti-ferromagnetic interactions when the temperature is lower than − 17.54 K. After rising temperature, this material exhibits paramagnetic property. This work opens up strategies toward the brand new morphologies and components of PNMs, endowing this kind of material with new functions.

探索和制备具有可控形态和多样化组成的基于多金属氧酸盐的纳米材料（PNM）是一项挑战。这里，3种d -4 ˚F金属被引入到isopolyoxometalates和Anderson型多金属氧酸盐，CeCdW ₁₂纳米花和EuCrMo ₆ microflaky已经分别制造。进行了一系列对照实验，以确定对PNM中稀有形态的影响因素。此外，在396 nm处激发后，EuCrMo ₆的发射光谱在674、685、690、707和734 nm处显示五个突出的f-f发射峰，这些峰分配给Eu ^{3+ 5} D ₀  →  ⁷F _J（J  = 0、1、2、3、4）转换。同时，VSM结果表明，当温度低于− 17.54 K时，EuCrMo ₆中的Cr ⁺³离子表现出反铁磁相互作用。温度升高后，该材料表现出顺磁性。这项工作为PNM的全新形态和组件开辟了战略，使这种材料具有新功能。