Sustained Metal Ion Release‐Controlled Synthesis of Polyoxometalate Subnanowires

Abstract Subnanowires (SNWs) are similar to polymers in dimension, exhibiting distinctive polymer‐like properties. They show not only multifunction due to the various inorganic compositions, but also good processability, which may become a bridge between conventional inorganic materials and polymers. Facile, strict, conditions‐free, and scalable synthesis methods of SNWs are foundations of developing functional SNWs materials and devices. In this study, we develop a universal method for synthesizing SNWs composed of metal ions and phosphomolybdic acid nanoclusters (termed M‐PMA SNWs) through a sustained‐release strategy of metal ions, and successfully fabricate a series of these architectures. All of M‐PMA SNWs can be processed into freestanding fibers and fabrics through electrospinning without polymer additives. Among them, the Ag‐PMA SNW fabrics display good photothermal performance, which can be integrated into photothermal wearable fabrics. This work provides a highly practical synthesis method of M‐PMA SNWs and combines functionalities and processability of SNWs effectively.